MIXING CONSOLE
Owner’s Manual
Mode d’emploi
Bedienungsanleitung
M
FCC INFORMATION (U.S.A.)
1. IMPORTANT NOTICE: DO NOT MODIFY THIS UNIT! This product, when installed as indicated in the instructions contained in this manual, meets FCC
requirements. Modifications not expressly approved by Yamaha may void your authority, granted by the FCC, to use the product.
2. IMPORTANT: When connecting this product to accessories and/or another product use only high quality shielded cables. Cable/s supplied with this product MUST
be used. Follow all installation instructions. Failure to follow instructions could void your FCC authorization to use this product in the USA.
3. NOTE: This product has been tested and found to comply with the requirements listed in FCC Regulations, Part 15 for Class “B” digital devices. Compliance with
these requirements provides a reasonable level of assurance that your use of this product in a residential environment will not result in harmful interference with
other electronic devices. This equipment generates/uses radio frequencies and, if not installed and used according to the instructions found in the users manual, may
cause interference harmful to the operation of other electronic devices. Compliance with FCC regulations does not guarantee that interference will not occur in all
installations. If this product is found to be the source of interference, which can be determined by turning the unit “OFF” and “ON”, please try to eliminate the
problem by using one of the following measures: Relocate either this product or the device that is being affected by the interference. Utilize power outlets that are on
different branch (circuit breaker or fuse) circuits or install AC line filter/s. In the case of radio or TV interference, relocate/reorient the antenna. If the antenna lead-in
is 300 ohm ribbon lead, change the lead-in to coaxial type cable. If these corrective measures do not produce satisfactory results, please contact the local retailer
authorized to distribute this type of product. If you can not locate the appropriate retailer, please contact Yamaha Corporation of America, Electronic Service
Division, 6600 Orangethorpe Ave, Buena Park, CA 90620
The above statements apply ONLY to those products distributed by Yamaha Corporation of America or its subsidiaries.
ADVARSEL!
Lithiumbatteri—Eksplosionsfare ved fejlagtig
håndtering. Udskiftning må kun ske med batteri
af samme fabrikat og type. Levér det brugte
batteri tilbage til leverandoren.
VARNING
Explosionsfara vid felaktigt batteribyte. Använd
samma batterityp eller en ekvivalent typ som
rekommenderas av apparattillverkaren.
Kassera använt batteri enligt fabrikantens
instruktion.
VAROITUS
Paristo voi räjähtää, jos se on virheellisesti
asennettu. Vaihda paristo ainoastaan
laitevalmistajan suosittelemaan tyyppiin. Hävitä
käytetty paristo valmistajan ohjeiden
mukaisesti.
NEDERLAND
THE NETHERLANDS
● Dit apparaat bevat een lithium batterij voor geheugen
back-up.
● This apparatus contains a lithium battery for memory
back-up.
● Raadpleeg uw leverancier over de verwijdering van de
batterij op het moment dat u het apparaat ann het einde
van de levensduur afdankt of de volgende Yamaha Service
Afdeiing:
Yamaha Music Nederland Service Afdeiing
Kanaalweg 18-G, 3526 KL UTRECHT
Tel. 030-2828425
● For the removal of the battery at the moment of the
disposal at the end of the service life please consult your
retailer or Yamaha Service Center as follows:
Yamaha Music Nederland Service Center
Address: Kanaalweg 18-G, 3526 KL
UTRECHT
Tel: 030-2828425
● Gooi de batterij niet weg, maar lever hem in als KCA.
● Do not throw away the battery. Instead, hand it in as small
chemical waste.
Important Information
Read the Following Before Operating M2500
Warnings
• Do not allow water to enter this unit or allow the
unit to become wet. Fire or electrical shock may
result.
• Connect this unit’s power cord only to the
power supply unit, and connect the power supply unit to an AC outlet of the type stated in this
Owner’s Manual or as marked on the power
supply unit. Failure to do so is a fire and electrical shock hazard.
• Do not scratch, bend, twist, pull, or heat the
power cord. A damaged power cord is a fire and
electrical shock hazard.
• Do not place heavy objects, including this unit,
on top of the power cord. A damaged power
cord is a fire and electrical shock hazard. In particular, be careful not to place heavy objects on a
power cord covered by a carpet.
• If you notice any abnormality, such as smoke,
odor, or noise, or if a foreign object or liquid
gets inside the unit, turn it off immediately.
Remove the power cord from the AC outlet.
Consult your dealer for repair. Using the unit in
this condition is a fire and electrical shock hazard.
• Should this power supply be dropped or the
cabinet be damaged, turn the power switch off,
remove the power plug from the AC outlet, and
contact your dealer. If you continue using the
unit without heeding this instruction, fire or
electrical shock may result.
• If the power cord is damaged (i.e., cut or a bare
wire is exposed), ask your dealer for a replacement. Using the unit with a damaged power
cord is a fire and electrical shock hazard.
• Do not modify the unit. Doing so is a fire and
electrical shock hazard.
Cautions
• This unit is heavy. Use two or more people to
carry it.
• Hold the power cord plug when disconnecting it
from an AC outlet. Never pull the cord. A damaged power cord is a potential fire and electrical
shock hazard.
• Do not touch the power plug with wet hands.
Doing so is a potential electrical shock hazard.
• Use only the included power supply for this unit.
Using other types may be a fire hazard.
Operating Notes
• The digital circuits of this unit may induce a
slight noise into nearby radios and TVs. If noise
occurs, relocate the affected equipment.
• Using a mobile telephone near this unit may
induce noise. If noise occurs, use the telephone
away from the unit.
• XLR-type connectors are wired as follows:
pin 1: ground, pin 2: hot (+), and pin 3: cold (–).
• Insert TRS phone jacks are wired as follows:
sleeve: ground, tip: send, and ring: return.
• The performance of components with moving
contacts, such switches, rotary controls, faders,
and connectors, deteriorates over time. The rate
of deterioration depends on the operating environment and is unavoidable. Consult your
dealer about replacing defective components.
Keep This Manual For Future Reference.
M2500—Owner’s Manual
iii
iv
M2500—Owner’s Manual
Introduction
Thank you for purchasing the Yamaha M2500 mixing console. The M2500 is a highly costeffective mixing console that features functionality such as scene memory, PAN control
that is switchable between LR/LCR, and GROUP/AUX FADER FLIP switches. In order to
take full advantage of the M2500’s functionality and ensure trouble-free use, please read
this manual carefully.
Note:
• This manual assumes that you have an understanding of basic mixing console operation and terminology.
• The M2500 series includes five models: M2500-24, M2500-32, M2500-40C, M250048C, and M2500-56C. This manual bases its explanation on the M2500-24. Differences
in the specifications of each models are given in curly brackets { }.
Contents
Features of the system............................. 2
Error messages ...................................... 39
Control panel.......................................... 3
Specifications ........................................ 40
Input channel section ......................................... 3
GROUP/AUX master section............................. 9
GROUP/AUX FLIP switch ............................... 14
Stereo/monaural master section ...................... 16
Matrix section ................................................... 18
Monitor section ................................................ 19
Talkback/oscillator section............................... 21
Meter select section........................................... 22
Control section ................................................. 22
Meter bridge...................................................... 24
General specifications ...................................... 40
Input/output characteristics ............................ 41
Other ................................................................. 42
Dimensions ........................................... 43
MIDI data format .................................. 44
MIDI Implementation Chart .................. 45
Rear panel............................................. 25
Monaural input channel input/output jacks... 25
Stereo input channel input/output jacks......... 26
Master section input/output jacks ................... 27
The Scene Memory function ................. 30
What is scene memory? .................................... 30
Modes of the scene memory function ............. 30
Operation in Normal mode ............................. 31
Check mode operation ..................................... 32
Utility mode procedures................................... 34
Control change table ........................................ 36
Mute groups...................................................... 37
About the local control circuit ......................... 38
M2500—Owner’s Manual
1
Features of the system
• The M2500-24 {32/40C/48C/56C} provides 24
{32/40/48/56} monaural input modules and
four stereo input modules. It also provides 14
AUX outputs, eight group outputs, stereo output, and monaural output, for a generous total
of 25 output buses. The M2500 is ideal for a
wide range of applications from use as a main
PA mixer to use in installed systems.
• The Scene Memory function allows you to store
the on/off status of each mono/stereo input
channel and GRP/AUX 1–8, STEREO, and
MONO/C output channels as one of 128 scenes.
Scenes can be recalled at any time from the front
panel or via MIDI. In addition, control change
messages can be used to individually switch
these channels on/off from an external device.
• Eight independent matrix outputs are provided.
The GRP/AUX, STEREO, and MONO/C channel output signals and the input signals from
dedicated inputs can be mixed freely, and output
from the eight MATRIX OUT jacks. This is convenient for foldback, or for creating individual
mixes for monitor speakers or amps.
• Eight DIRECT RECALL switches are provided
to allow scene memories 1–8 to be recalled at the
touch of a single button. This allows multiple
channels to be switched on/off quickly.
• Monaural input channels and GRP/AUX output
channels allow you to select not only conventional LR (stereo) output or monaural output,
but also LCR (stereo+center) output. When LCR
output is selected, the level of the center output
signal is also controlled by the PAN control, for
accurate spatial positioning when a three-channel stereo+center playback system is used.
• Monaural input channels provide a 26 dB pad,
high pass filter switch, phase switch, four-band
EQ, and 100 mm full-stroke faders. +48 V phantom power that can be switched on/off individually for each channel is also provided.
• An INSERT I/O jack is provided on each monaural input channel as well as on the AUX 1–6,
GRP/AUX, STEREO, and MONO/C output
channels. This allows you to insert external
effect units as necessary.
• The GROUP/AUX FLIP switch allows the eight
100 mm fader output channels to be used either
for the GROUP or AUX buses. When used for
the AUX buses, all 14 AUX buses can be controlled by 100 mm faders, which is convenient
when using the M2500 as a stage monitor console.
2
M2500—Owner’s Manual
• By changing a setting, the DIRECT RECALL
switches can be used as mute group switches.
Mute group switch settings allow the DIRECT
RECALL switches to individually add/remove
eight sets of mute settings.
• PFL switches are provided on all input channels,
and AFL switches are provided on all master
outputs. In addition, a MASTER PFL switch
allows the master output monitor signal to be
switched between pre/post fader. You can rapidly check the input/output signal sources at a
variety of points.
• The talkback signal and the test tone oscillator
(PINK/10 kHz/1 kHz/100 Hz) can be sent to any
of the AUX 1-2, 2-6, 7-10, 11-14, STEREO, or
MONO/C buses.
Control panel
A +48 V (phantom power) switch
Input channel section
This switches the +48 V phantom power supply on/
off for the corresponding channel. When the switch is
pressed in ( ), phantom power is on. At this time
the indicator above the switch will light.
Monaural input channels
The M2500-24 {32/40C/48C/56C} provides 24 {32/
40/48/56} input channels. The specifications of each
input channel are the same for all models of the
series.
+48V
Note: If you wish to use phantom power, make
sure that the rear panel PHANTOM MASTER
switch (page 29) is turned on. (The PHANTOM
MASTER indicator on the meter bridge will light.)
B GAIN control
1
This adjusts the input sensitivity. This control has a
range of –16 dB to –60 dB when the 26 dB pad switch
(3) is off, and a range of +10 dB to –34 dB when the
pad is on.
GAIN
+10
–16
–34
–60
26dB
4
80
2
3
5
C 26 dB pad switch
HI
–15
This attenuates the input signal by 26 dB. When the
switch is pressed in ( ), the pad is on.
+15
HI-MID
400
8k
–15
+15
LO-MID
80
1.6k
–15
+15
D
6
E 80 (high pass filter) switch
This switches the high pass filter on/off. When the
switch is pressed in ( ), the high pass filter is on,
and the frequency range below 80 Hz will be attenuated by an 18 dB/oct curve.
LO
–15
+15
EQ
(phase) switch
This reverses the phase of the input signal. When the
switch is pressed in ( ), the phase is reversed.
7
F EQ controls
0
0
10
AUX14
PAN
0
0
0
10
C
AUX2
10
L
ODD
R
EVEN
1-2
ST
3-4
MONO
10
AUX4
0
10
AUX5
LCR
10
10
AUX7
L
ON/EDIT
0
10
AUX8
PRE
0
9
5 NOM
AUX9
0
10
0
10
0
10
0
10
Center frequency
HIGH
Shelving
10 kHz
HIGH-MID
Peaking
400 Hz to 8 kHz
LOW-MID
Peaking
80 Hz to 1.6 kHz
LOW
Shelving
100 Hz
Gain
±15 dB
M
SIGNAL
AUX10
5
10
AUX11
This switches the equalizer on/off. When the switch is
pressed in ( ), the equalizer will be on.
H AUX 1–AUX 14 controls
10 PEAK
10
0
Type
G EQ switch
AUX6
CHECK
ON
0
K
Band
5-6
7-8
8
J
AUX3
PRE
0
This is a four-band equalizer. The type, center frequency, and gain range of each band is shown below.
10
AUX1 PRE
These adjust the level at which the signal of the monaural input channel is set to AUX buses 1 to 14. Nominal level (0 dB) is when the control is at the “▲”
position. The pre-fader signal will be sent to AUX
buses 1/2. For AUX buses 3 to 14, you can use the
PRE switch (9) to switch between pre/post fader.
20
AUX12
30
PRE
40
AUX13
N
0
O
10
AUX14
PAN
50
60
PFL
C
M2500—Owner’s Manual
3
Control panel
If these switches are turned on ( ), the post-EQ prefader signal will be sent to the corresponding AUX
buses. If these switches are turned off ( ), the postfader signal will be sent. Switches are provided to
independently switch three groups of AUX buses: 3–
6, 7–10, and 11–14.
J PAN control
This adjusts the pan or balance of the signal that is
sent from the monaural input channel to the STEREO, MONO/C, or GROUP buses. The function of
the PAN control will change as follows, depending on
the setting of the channel assign switch (K).
● When the ST switch is on
PAN will adjust the pan of the signal that is sent from
the monaural input channel to the STEREO L/R bus.
Note:
• The LCR switch takes priority over the ST/MONO
switch. When the LCR switch is on, the post-PAN
signal of the monaural input channel will be sent to
the STEREO bus (L/R) and the MONO/C bus regardless of the on/off status of the ST/MONO switch.
When the LCR switch is on, the level of the signals
that are sent to the STEREO bus (L/R) and MONO/C
bus will change in response to movement of the PAN
control as shown in the following diagram.
K Channel assign switches
These switches assign the post-fader post-PAN signal
to the desired bus.
• 1-2/3-4/5-6/7-8 switches
When these switches are on ( ), the signal of the
monaural input channel will be sent to the corresponding GROUP bus (1-2/3-4/5-6/7-8).
• ST (stereo) switch
When this switch is on ( ), the post-PAN signal of
the monaural input channel will be sent to the STEREO bus.
• MONO (monaural) switch
When this switch is on ( ), the signal of the monaural input channel will be sent to the MONO/C bus.
C
R
PAN control
• When the LCR switch is off, the ST/MONO switch
will function as a conventional channel assign
switch. If ST is on, the post-PAN signal of the
monaural input channel will be sent to the ST bus.
If the MONO switch is on, the signal of the monaural input channel will be sent directly to the
MONO/C bus. (The signal sent to the MONO/C
bus will not be affected by the PAN control.) If the
LCR switch is off and the ST/MONO switch is on,
movements of the PAN control will affect the signal levels sent to the STEREO bus (L/R) and
MONO/C bus as shown in the following diagram.
< Response curve 2 >
LCR switch= off
ST switch= on
MONO switch= on
Signal sent to the MONO/C bus
Signal sent to STEREO bus L
Signal sent to STEREO bus R
L
C
R
PAN control
• The 1-2/3-4/5-6/7-8 switches can always be used,
regardless of the on/off status of the LCR switch.
When the 1-2/3-4/5-6/7-8 switches are on, the
post-PAN signal of the monaural input channel
will be sent to the corresponding GROUP bus 1–8.
When the 1-2/3-4/5-6/7-8 switches are on, movements of the PAN control will affect the signal levels sent to GROUP buses 1–8 as shown in the
following diagram.
< Response curve 3 >
1-2/3-4/5-6/7-8 switches= on
Signal level
• LCR switch
When this switch is on, the indicator above the switch
will light, and the post-PAN signal of the monaural
input channel will be sent to the STEREO bus and the
MONO/C bus.
Signal sent to STEREO bus L
Signal level
● When a 1-2/3-4/5-6/7-8 switch is on
PAN will adjust the balance of the signal that is sent
from the monaural input channel to the odd-numbered (1/3/5/7) and even-numbered (2/4/6/8) channels of the corresponding GROUP bus (1-2/3-4/5-6/
7-8).
Signal sent to the MONO/C bus
Signal sent to STEREO bus R
L
● When the LCR switch is on
PAN will adjust the pan of the signal that is sent from
the monaural input channel to the STEREO L/R bus
and MONO/C bus.
< Response curve 1 >
LCR switch= on
Signal level
I PRE switches
Signal sent to GROUP buses 1/3/5/7
Signal sent to GROUP buses 2/4/6/8
ODD
C
PAN control
4
M2500—Owner’s Manual
EVEN
Control panel
L ON/EDIT switch / ON, CHECK indicators
M PEAK/NOM/SIGNAL indicators
The function of this switch and these indicators will
change depending on the mode of the M2500.
These three indicators allow you to check the prefader signal level of the monaural input channel.
● In normal mode
You can use the ON/EDIT switch to turn the monaural input channel on/off. When the channel is
switched on/off, the ON indicator will be lit/dark to
indicate the status. Channels that are switched off will
not send any signals to the GROUP, STEREO,
MONO/C, or AUX buses, but you can still use the
PFL switch (O) to monitor the signal from the
MONITOR OUT jacks or the PHONES jack.
• PEAK indicator
This will light when the signal exceeds nominal level
by 17 dB.
• NOM (nominal) indicator
This will light when the signal reaches nominal level
(0 dB).
• SIGNAL indicator
This will light when the signal reaches a level 13 dB
below nominal.
● In check mode
When a scene (which contains the on/off state of the
ON/EDIT switches) is selected, the on/off status
memorized in that scene will be indicated by the lit/
dark status of the CHECK indicator. In check mode,
you can also use the ON/EDIT switch to switch the
CHECK indicator between lit/dark. (The current on/
off setting will not be affected.) For details on check
mode, refer to page 32.
6
M
EQ
Ø
3
1
2
GROUP
AUX
LR
3 5 7
1 3 5 7 9 11 13
4 6 8
2 4 6 8 10 12 14
MONITOR
MASTER
INPUT
(PFL)
PFL AFL
LR
LR
LR
LO
GAIN
g
7
N
PAN
ST
HI
(–26dB)
LO-MID
f
g
(0dB)
f
80
26dB
K
4 stage EQ
HPF
HI-MID
PAD
J
PEAK
NOM
SIGNAL
INSERT I/O
0dB
PHANTOM +48V
MASTER
INPUT
1-24
1-32
1-40
1-48
1-56
When this switch is on ( ), the pre-fader signal will
be sent to the MONITOR INPUT PFL bus, and can
be monitored from the MONITOR OUT and
PHONES jacks.
MONO
ST
MONO
ST
ON
4
O PFL (pre-fader listen) switch
MONO
ST
ON
5
This adjusts the output level of the monaural input
channel signal. This fader affects the level of the signal that is sent to the GROUP, STEREO, MONO/C,
and AUX (if the PRE switch is off) buses.
STEREO
MONO/C
1
N Channel fader
2
MONO
LCR
L
AUX1
CHECK
ON
AUX2
Control
ON/EDIT
AUX3
from CPU
AUX4
AUX5
PRE
9
AUX6
8
AUX 7-10
Same as AUX 3-6
AUX 11-14
Same as AUX 3-6
PFL
O
M2500—Owner’s Manual
5
Control panel
Stereo input channels
The M2500 provides four stereo input channels,
allowing line-level stereo sources such as sub-mixers,
effect processors, and CD players to be input. Of the
stereo input channels 1–4, channel 1 provides both
XLR and RCA phono input jacks, and you can select
and use one of these. Channels 2–4 provide a pair of
TRS phone input jacks. For this reason, there are
slight differences between the controllers of channel 1
and channels 2–4. Our explanation here will be based
on stereo input channel 1, and any differences for stereo input channels 2–4 will be explained later.
GAIN
A
+10
–30
1
B
+10
–20
2
3
A
B
A GAIN A control
This adjusts the input sensitivity of the signal that is
input from the XLR connectors of the ST CH 1
INPUT A jacks (page 26). Levels of +10 dB to –30 dB
are supported. If the A/B select switch (3) is in the B
( ) position, this control will have no effect.
HI
–15
+15
4
LO
B GAIN B control
–15
EQ
0
0
0
This adjusts the input sensitivity of the signal that is
input from the RCA phono connectors of the ST CH
1 INPUT B jacks (page 26). Levels of +10 dB to
–20 dB are supported. If the A/B select switch (3) is
in the A ( ) position, this control will have no
effect.
+15
5
10
AUX1 PRE
C A/B switch
10
AUX2
10
AUX3
0
10
AUX14
0
10
AUX4
BAL
PRE
0
0
6
0
10
AUX5
L
ODD
R
EVEN
1-2
ST
3-4
MONO
8
10
AUX6
9
5-6
10
AUX7
7-8
0
10
AUX8
PRE
0
7
CHECK
ON
10
AUX9
0
10
0
10
0
10
J
5 NOM
AUX12
0
K
AUX13
This is a two-band equalizer. The equalizer type, center frequency, and gain range of each band is shown
below.
10
10
AUX14
–30
D EQ controls
5
10
+10
SIGNAL
PRE
0
GAIN
10 PEAK
AUX11
BAL
Note: Since stereo input channels 2–4 have only
one set of inputs, only one GAIN control is provided. (Nor is there an A/B select switch.) This
control will adjust the input sensitivity of the signal that is input from the TRS phone connectors
for the ST CH 2–4 INPUT jacks (page 26). Levels
of +10 dB to –30 dB are supported.
ON/EDIT
AUX10
0
This selects the input jacks that will be used for stereo
input channel 1. When the switch is in the upward
position ( ), the ST CH 1 INPUT A jacks can be
used. When the switch is in the downward position
( ), the ST CH 1 INPUT B jacks can be used.
20
C
30
L
ODD
R
EVEN
Band
40
L
50
60
M
PFL
HIGH
LOW
6
M2500—Owner’s Manual
Type
Shelving
Center
frequency
10 kHz
100 Hz
Gain
±15 dB
Control panel
E EQ switch
This turns the equalizer on/off. When the switch is
pressed in ( ), the equalizer is on.
F AUX 1–AUX 14 controls
These adjust the level at which the signal of the stereo
input channel (the L/R input signals mixed to a monaural signal) is sent to the AUX buses 1–14. Placing
the control at the “▲” position will produce nominal
level (0 dB). For AUX buses 1/2, the pre-fader signal
will be output. For AUX buses 3–14, the PRE switch
(7) can be used to switch the signal pre or post
fader.
G PRE switches
If these switches are turned on ( ), the pre-fader
signal will be sent to the corresponding AUX buses. If
these switches are turned off ( ), the post-fader signal will be sent. Switches are provided to independently switch three groups of AUX buses: 3–6, 7–10,
and 11–14.
H BAL control
J ON/EDIT switch / ON, CHECK indicators
The function of this switch and these indicators will
change depending on the mode of the M2500.
● In normal mode
You can use the ON/EDIT switch to turn the stereo
input channel on/off. When the channel is switched
on/off, the ON indicator will be lit/dark to indicate
the status. Channels that are switched off will not
send any signals to the GROUP, STEREO. MONO/C,
or AUX buses, but you can still use the PFL switch
(M) to monitor the signal from the MONITOR OUT
jacks or the PHONES jack.
● In check mode
When a scene is selected, the on/off status memorized
in that scene will be indicated by the lit/dark status of
the CHECK indicator. In check mode, you can also
use the ON/EDIT switch to switch the CHECK indicator between lit/dark. For details on check mode,
refer to page 32.
K PEAK/NOM/SIGNAL indicators
This adjusts the level balance of the signal that is sent
to the STEREO or GROUP buses.
These three indicators allow you to check the prefader signal level of the stereo input channel.
● If the ST switch is on
The BAL control will adjust the L/R balance at which
the signal of the stereo input channel is sent to the
STEREO bus.
• PEAK indicator
This will light when the signal mixed to monaural
exceeds nominal level by 17 dB.
● If a 1-2/3-4/5-6/7-8 switch is on
The BAL control will adjust the balance of the stereo
input channel that is sent to the odd-numbered
channels (1/3/5/7) and even-numbered channels (2/
4/6/8) of the corresponding GROUP bus (1-2/3-4/56/7-8). The L ch of the input signal will be sent to the
odd-numbered channel of the group bus, and the R
channel of the input signal will be sent to the evennumbered channel of the group bus.
I Channel assign switches
These switches assign the signal that has passed
through the fader and BAL control to the desired
bus(es). Any or all of the channel assign switches can
be used simultaneously.
• 1-2/3-4/5-6/7-8 switches
When these switches are on ( ), the signal of the
stereo input channel will be sent to the corresponding GROUP bus (1-2/3-4/5-6/7-8).
• NOM (nominal) indicator
This will light when the signal mixed to monaural
reaches nominal level (0 dB).
• SIGNAL indicator
This will light when the signal mixed to monaural
reaches a level 13 dB below nominal.
L Channel fader
This adjusts the output level of the stereo input channel signal. This fader affects the level of the signal that
is sent to the GROUP, STEREO, MONO/C, and AUX
(if the PRE switch is off) buses.
M PFL (pre-fader listen) switch
When this switch is on ( ), the pre-fader signal will
be sent to the MONITOR INPUT PFL bus, and can
be monitored from the MONITOR OUT and
PHONES jacks.
• ST (stereo) switch
When this switch is on ( ), the signal of the stereo
input channel will be sent to the STEREO bus.
• MONO (monaural) switch
When this switch is on ( ), the L and R channels of
the input signal will be mixed to monaural, and sent
to the MONO/C bus. The signal that is sent to the
MONO/C bus is not affected by the BAL control.
M2500—Owner’s Manual
7
Control panel
K
8
9
PEAK
NOM
SIGNAL
A
1
B
2
AUX
GROUP
LR
1 3 5 7 9 11 13
3 5 7
2 4 6 8 10 12 14
4 6 8
L
2 stage EQ
HI
LO
GAIN A
INPUT A
EQ
BAL
R
2 stage EQ
ST CH 1
L
GAIN B
L
INPUT B
ST
MONO
R
AUX1
CHECK
ON
2
AUX2
Control
ON/EDIT
AUX3
from CPU
J
AUX4
AUX5
PRE
7
AUX 7-10
Same as AUX 3-6
AUX 11-14
Same as AUX 3-6
PFL
M
L/MONO
R
8
M2500—Owner’s Manual
2 stage EQ
HI
ST CH 2-4
INPUT
LO
GAIN
2 stage EQ
EQ
ST CH 2-4
Same as ST CH 1
AUX6
6
MONITOR
INPUT
MASTER
(PFL)
PFL AFL
LR
MONO
ST
MONO
ST
ON
5
MONO
ST
ON
4
STEREO
MONO/C
1 3
LR
LR
Control panel
GROUP/AUX master section
AUX 1–6 section
A ON switches
These turn AUX OUT 1–6 on/off. When a switch is
on ( ), the signal of the corresponding AUX bus
will be output to the AUX OUT jack.
B AUX 1–6 master faders
These adjust the output levels of AUX OUT 1–6.
C AFL (after fader listen) switches
1
ON
ON
10
ON
10
ON
10
ON
ON
5
5
5
5
5
5
0
0
0
0
0
0
5
5
5
5
5
5
10
10
10
10
10
10
20
20
20
20
20
20
30
30
30
30
30
30
40
40
40
40
40
40
50
60
50
60
50
60
50
60
50
60
50
60
AFL
AUX1
2
10
AFL
AUX2
AFL
AUX3
AFL
AUX4
AFL
These switches are used to monitor the signal of the
AUX OUT 1–6 section from the MONITOR OUT/
PHONES jacks. When an AFL switch is on (the
switch above the indicator will light), the pre/afterfader signals of the AUX 1–6 section will be sent to
the MONITOR MASTER PFL/AFL buses respectively, and can be monitored via the MONITOR
OUT/PHONES jacks. At this time, you can use the
MASTER PFL switch (page 19) in the monitor section to select whether you will monitor the pre- or
after-fader signal.
AFL
AUX5
AUX6
3
These are the output channels that control the signals
of AUX buses 1–6. The signals that have passed
through these output channels will be output individually from the AUX OUT 1–6 jacks (page 27). In
addition, they pass through the MONITOR MASTER
PFL/AFL buses and can be monitored from the
MONITOR OUT L/R and the PHONES jacks.
Note: If the PFL switch of even one input channel
is turned on, the signal of the MONITOR INPUT
bus will take priority for monitoring. In this case,
be aware that even if the AFL switch is turned on,
the MONITOR MASTER bus cannot be monitored.
MONITOR
MASTER
INPUT
(PFL)
PFL AFL
1
2
3
4
5
AUX
7 9 11 13
8 10 12 14
LR
MONO
ST
MONO
ST
ON
10
MONO
ST
ON
10
LR
LR
6
INSERT I/O
0dB
AUX 1
2
1
to METER
AUX OUT
+4dB
1
ON
AFL
3
AUX 2-6
Same as AUX 1
M2500—Owner’s Manual
9
Control panel
A7/G1–A14/G8 section
1
0
10
0
LEVEL
2
ON
10
LEVEL
ON
AFL
A7 / G1
AFL
A8 / G2
0
10
LEVEL
ON
AFL
A9 / G3
0
10
LEVEL
ON
AFL
A10 / G4
0
10
LEVEL
ON
AFL
A11 / G5
0
10
LEVEL
ON
AFL
A12 / G6
0
10
LEVEL
ON
AFL
A13 / G7
0
10
LEVEL
ON
AFL
A14 / G8
3
These output channels control the signals of AUX
buses 7–14 or GROUP buses 1–8. You can use the
GROUP/AUX FLIP switch (page 14) to select the signals that will be controlled.
■ GROUP/AUX FLIP switch= GROUP ( )
The signals of AUX buses 7–14 will be sent to channels A7/G1–A14/G8 respectively, and will be output
individually from the AUX/GRP OUT A7/G1–A14/
G8 jacks.
AUX5
0
10
LEVEL
0
AUX6
ON
AFL
A7 / G1
0
0
0
10
LEVEL
10
ON
AFL
A8 / G2
10
AUX7
10
AUX8
PRE
0
10
AUX9
0
10
AUX10
■ GROUP/AUX FLIP switch= AUX ( )
The signals of GROUP buses 1–8 will be sent to channels A7/G1–A14/G8 respectively, and output individually from the AUX/GRP OUT A7/G1–A14/G8 jacks.
0
PAN
ON
L
ODD
R
EVEN
1-2
ST
3-4
MONO
10
AFL
A7 / G1
5-6
7-8
10
LEVEL
0
10
LEVEL
C
LCR
M2500—Owner’s Manual
ON
AFL
A8 / G2
A LEVEL control
This adjusts the output level of AUX/GRP OUT A7/
G1–A14/G8. The “▲” position is nominal level.
B ON switch
This turns AUX/GRP OUT A7/G1–A14/G8 on/off.
When the switch is on ( ), the signals from the A7/
G1–A14/G8 section will be output from the AUX
OUT A7/G1–A14/G8 jacks respectively.
C AFL switch
This switch is used to monitor the signal from the
AUX/GRP OUT A7/G1–A14/G8 section via the
MONITOR OUT/PHONES jacks. If all the input
channel PFL switches are off, you can turn on this
AFL switch to monitor the corresponding signal of
the A7/G1–A14/G8 section from the MONITOR
OUT/PHONES jacks. You can use the MASTER PFL
switch of the monitor section to switch the monitor
signal between pre/post-fader (LEVEL control).
Control panel
G1/A7–G8/A14 section
PAN
4
L
R
MATRIX
5
6
7
PAN
C
ST
PAN
C
L
R
MATRIX
ST
PAN
C
L
R
MATRIX
ST
PAN
C
L
R
MATRIX
ST
PAN
C
L
R
MATRIX
PAN
C
L
ST
R
MATRIX
ST
PAN
C
L
R
MATRIX
C
L
ST
R
MATRIX
ST
MONO
MONO
MONO
MONO
MONO
MONO
MONO
MONO
LCR
LCR
LCR
LCR
LCR
LCR
LCR
LCR
CHECK
ON
CHECK
ON
CHECK
ON
CHECK
ON
CHECK
ON
CHECK
ON
CHECK
ON
CHECK
ON
ON/EDIT
ON/EDIT
ON/EDIT
ON/EDIT
ON/EDIT
ON/EDIT
ON/EDIT
ON/EDIT
10
10
10
10
10
10
10
10
5
5
5
5
5
5
5
5
0
0
0
0
0
0
0
0
5
5
5
5
5
5
5
5
10
10
10
10
10
10
10
10
20
20
20
20
20
20
20
20
30
30
30
30
30
30
30
30
40
40
40
40
40
40
40
40
50
60
50
60
50
60
50
60
50
60
50
60
50
60
50
60
AFL
AFL
AFL
AFL
AFL
AFL
AFL
AFL
8
G1 / A7
G2 / A8
G3 / A9
G4 / A10
G5 / A11
G6 / A12
These are the output channels that control GROUP
buses 1–8 or AUX buses 7–14. Use the GROUP/AUX
FLIP switch (page 14) to select which signals will be
controlled.
G7 / A13
G8 / A14
PAN
L
■ GROUP/AUX FLIP switch= GROUP ( )
The signals of GROUP buses 1–8 will be sent to channels G1/A7–G8/A14 respectively, and will be output
individually from the GRP/AUX OUT G1/A7–G8/
A14 jacks.
R
MATRIX
PAN
C
PAN
C
ST
R
EVEN
1-2
ST
3-4
MONO
L
R
MATRIX
ST
MONO
MONO
LCR
LCR
CHECK
ON
CHECK
ON
ON/EDIT
ON/EDIT
10
10
5
5
0
0
5
5
10
10
20
20
30
30
40
40
50
60
50
60
AFL
L
ODD
C
G1 / A7
AFL
G2 / A8
5-6
7-8
LCR
M2500—Owner’s Manual
11
Control panel
■ GROUP/AUX FLIP switch= AUX ( )
The signals of AUX buses 7–14 will be sent to channels G1/A7–G8/A14 respectively, and will be output
individually from the GRP/AUX OUT G1/A7–G8/
A14 jacks.
PAN
PAN
C
L
R
MATRIX
ST
C
L
R
MATRIX
ST
MONO
MONO
LCR
LCR
CHECK
ON
CHECK
ON
D PAN control
This adjusts the pan of the signal that is sent from the
G1/A7–G8/A14 section to the STEREO or MONO/C
bus. The function of the PAN control will change as
follows, depending on the setting of the channel
assign switch (5).
● When the ST switch is on
PAN will adjust the pan of the signal that is sent from
each channel to the STEREO L/R bus.
● When the LCR switch is on
PAN will adjust the pan of the signal that is sent from
each channel to the STEREO L/R bus and MONO/C
bus.
E Channel assign switches
AUX5
0
ON/EDIT
ON/EDIT
10
10
5
5
0
0
5
5
10
10
20
20
30
30
40
40
50
60
50
60
AFL
10
0
10
AUX7
10
AUX8
PRE
0
0
10
AUX9
10
AUX10
12
• ST (stereo) switch
If this switch is on ( ), the post-PAN signal of the
output channel will be sent to the STEREO bus.
• MONO (monaural) switch
If this switch is on ( ), the signal of the output
channel will be sent to the MONO/C bus.
AFL
AUX6
G1 / A7
0
M2500—Owner’s Manual
These switches assign the post-fader post-PAN signal
to the desired bus.
G2 / A8
• LCR switch
If this switch is on, the indicator above the switch will
light, and the post-PAN signal of the output channel
will be sent to the STEREO bus and the MONO/C
bus.
• MATRIX switch
IF this switch is on ( ), the signal of the output
channel will be sent to the corresponding MATRIX
bus.
Note:
• The LCR switch takes priority over the ST/
MONO switch. If the LCR switch is on, the
post-PAN signal of the G1/A7–G8/A14 section
will be sent to the STEREO bus (L/R) and
MONO/C bus regardless of the on/off status of
the ST/MONO switch. (Refer to response curve
diagram 1 on page 4.)
• If the LCR switch is off, the ST/MONO switch
will function as a conventional channel assign
switch. If ST is on, the post-PAN signal of the
G1/A7–G8/A14 section will be sent to the ST
bus. If the MONO switch is on, the signal of
the G1/A7–G8/A14 section will be sent directly
to the MONO/C bus. (Refer to response curve
diagram 2 on page 4.)
Control panel
F ON/EDIT switch / ON, CHECK indicators
G Fader
The function of this switch and these indicators will
change depending on the mode of the M2500.
This adjusts the output level of the GRP/AUX OUT.
H AFL (after fader listen) switch
● In normal mode
You can use the ON/EDIT switch to turn each G1/
A7–G8/A14 channel on/off. When the channel is
switched on/off, the ON indicator will be lit/dark to
indicate the status. Channels that are switched off will
not send any signals to the STEREO, MONO/C, or
MATRIX buses.
7
MATRIX
to METER
GRP/AUX OUT
+4dB
G1/A7
PAN
6
LR
LR
LR
LR
LR
ST
4
CHECK
ON
LR
MONITOR
INPUT
MASTER
(PFL)
PFL AFL
MONO
ST
MONO
ST
ON
INSERT I/O
0dB
G1/A7
MONO
ST
ON
GROUP
AUX
3 5 7
1 3 5 7 9 11 13
4 6 8
2 4 6 8 10 12 14
SUB IN
2
G1/A7
G2/A8
G3/A9
G4/A10
G5/A11
G6/A12
G7/A13
G8/A14
1
STEREO
MONO/C
● In check mode
When a scene (which contains the on/off state of the
ON/EDIT switches) is selected, the on/off status
memorized in that scene will be indicated by the lit/
dark status of the CHECK indicator. In check mode,
you can also use the ON/EDIT switch to switch the
CHECK indicator between lit/dark. (The current on/
off setting will not be affected.) For details on check
mode, refer to page 32.
STEREO
MONO/C
This switch allows you to monitor the signal of the
G1/A7–G8/A14 section from the MONITOR OUT/
PHONES jacks. If the input channel PFL switches are
all off, turning this AFL switch on (the indicator
above the switch will light) will allow you to monitor
the corresponding G1/A7–G8/A14 section signal
from the MONITOR OUT/PHONES jacks. The
monitor signal can be switched between pre/postfader using the MASTER PFL switch of the monitor
section.
MONO
LCR
MATRIX
Control
5
ON/EDIT
from CPU
AFL
8
to METER
LEVEL
ON
1
2
AUX/GRP OUT
+4dB
A7/G1
AFL
3
GRP/AUX G2/A8-G8/A14
and
AUX/GRP A8/G2-A14/G8
Same as
G1/A7
and
G7/A1
GROUP
AUX
GROUP/AUX FLIP
M2500—Owner’s Manual
13
Control panel
● When AUX ( ) is selected
The signals of GROUP buses 1–8 will be routed
through the A7/G1–A14/G8 section and sent to the
AUX/GRP OUT jacks. The signals of AUX buses 7–14
will be routed through the G1/A7–G8/A14 section,
and sent to the GROUP/AUX OUT jacks, the STEREO bus, MONO/C, and MATRIX buses.
This setting is more convenient when you are using
the M2500 as a “monitor console” to control individual monitor levels on stage, since you will be able to
use the 100 mm faders to control each of the AUX
buses (1–14).
GROUP/AUX FLIP switch
The M2500 provides a GROUP/
AUX FLIP switch that
exchanges the output destinations of GROUP buses 1–8 and
AUX buses 7–14.
GROUP
AUX
GROUP/AUX FLIP
● When GROUP ( ) is selected
The signals of GROUP buses 1–8 will be routed
through the G1/A7–G8/A14 section, and sent to the
GROUP/AUX OUT jacks, the STEREO bus, MONO/C,
and MATRIX buses. The signals of AUX buses 7–14 will
be routed through the A7/G1–A14/G8 section, and sent
to the AUX GRP OUT jacks. With this setting, AUX
buses 7–14 can be used as conventional AUX buses, and
GROUP buses 1–8 can be used as group buses. This setting is more convenient when you are using the M2500
as a main console, since you will be able to use the 100
mm faders to control the group buses.
GROUP
AUX
GROUP
AUX
When AUX is selected
PAN
PAN
C
L
R
MATRIX
When GROUP is selected
ST
C
L
R
MATRIX
GRP/AUX OUT jacks
STEREO bus
MONO/C bus
MATRIX bus
ST
MONO
MONO
LCR
LCR
CHECK
ON
CHECK
ON
AUX/GRP OUT jacks
AUX5
0
10
0
LEVEL
0
ON
AFL
A7 / G1
0
0
10
LEVEL
ON/EDIT
ON/EDIT
10
10
5
5
0
0
5
5
10
10
20
20
30
30
40
40
50
60
50
60
10
AUX6
ON
AFL
A8 / G2
A7/G1–A14/G8 section
10
AUX7
10
AUX8
PRE
0
10
AUX9
PAN
0
PAN
C
C
10
AUX10
L
R
L
R
GRP/AUX OUT jacks
STEREO bus
MONO/C bus
MATRIX bus
AUX5
MATRIX
ST
MATRIX
ST
MONO
MONO
LCR
LCR
0
G1 / A7
0
Input
channel
CHECK
ON
0
CHECK
ON
ON/EDIT
10
10
5
5
0
0
5
5
10
10
L
ODD
R
EVEN
1-2
ST
3-4
MONO
20
20
30
30
40
40
50
60
50
60
10
10
AUX9
0
10
AUX10
AUX/GRP OUT jacks
Input
channel
PAN
L
ODD
5-6
7-8
14
LCR
G1 / A7
G2 / A8
M2500—Owner’s Manual
R
EVEN
ST
3-4
MONO
5-6
AFL
G1/A7–G8/A14 section
10
LEVEL
0
10
LEVEL
C
1-2
7-8
AFL
G1/A7–G8/A14 section
AUX8
ON
C
G2 / A8
10
AUX7
0
PAN
AFL
PRE
0
ON/EDIT
AFL
10
AUX6
LCR
AFL
A7 / G1
ON
AFL
A8 / G2
A7/G1–A14/G8 section
Control panel
When you change the setting of the GROUP/AUX
FLIP switch, numerous functions of the output channels of GROUP buses 1–8 and AUX buses 7–14 will
change in addition to the faders. The functions available for the output channels of each bus are shown
below for each setting (GROUP/AUX) of the
GROUP/AUX FLIP switch.
• GROUP/AUX FLIP switch= GROUP (principal application: main console)
Output channel
GROUP buses 1–8
AUX buses 1–6
AUX buses 7–14
Master control
100 mm faders
100 mm faders
Rotary faders
❍
✕
✕
Channel assign switch
(MATRIX/ST/MONO/LCR)
PAN control
❍
✕
✕
Mute switch
ON/EDIT
ON
ON
INSERT I/O
❍
❍
✕
• GROUP/AUX FLIP switch= AUX (principal application: monitor console)
Output channel
GROUP buses 1–8
AUX buses 1–6
AUX buses 7–14
Master control
Rotary faders
100 mm faders
100 mm faders
✕
✕
❍
Channel assign switch
(MATRIX/ST/MONO/LCR)
PAN control
✕
✕
❍
Mute switch
ON
ON
ON/EDIT
INSERT I/O
✕
❍
❍
Note: The output channels of AUX buses 1–6 are
not affected by the GROUP/AUX FLIP switch.
M2500—Owner’s Manual
15
Control panel
Stereo/monaural master
section
This section controls the signals that are output from
the rear panel ST OUT L/R and MONO/C OUT jacks
(page 28).
1
MATRIX
5
MATRIX
● In check mode
When a scene (which contains the on/off state of the
ON/EDIT switches) is selected, the on/off status
memorized in that scene will be indicated by the lit/
dark status of the CHECK indicator. In check mode,
you can also use the ON/EDIT switch to switch the
CHECK indicator between lit/dark. (The current on/
off setting will not be affected.) For details on check
mode, refer to page 32.
C Fader
This adjusts the ST OUT L/R output level.
D AFL switch
CHECK
ON
2
3
CHECK
ON
ON/EDIT
ON/EDIT
10
10
5
5
0
0
5
5
10
10
20
20
30
30
40
40
50
60
50
60
6
MONO/C section
E MATRIX switch
AFL
AFL
STEREO
MONO/C
4
8
7
STEREO section
A MATRIX switch
If this switch is on ( ), the post-fader ST OUT L/R
signal will be sent to the matrix (page 18).
B ON/EDIT switch / ON, CHECK indicators
The function of this switch and these indicators will
change depending on the mode of the M2500.
● In normal mode
You can use the ON/EDIT switch to turn ST OUT L/
R on/off. When this is switched on/off, the ON indicator will be lit/dark to indicate the status. Channels
that are switched off will not send any signals to the
ST OUT L/R jacks or to the matrix.
16
M2500—Owner’s Manual
Using this switch, the signal sent to the ST OUT L/R
jacks can be monitored from the MONITOR OUT/
PHONES jacks. If the PFL switches of all input channels are off, turning this AFL switch on (the indicator
above the switch will light) will allow you to monitor
the output signal of the STEREO section from the
MONITOR OUT/PHONES jacks. Use the MASTER
PFL switch of the monitor section to switch the monitor signal between pre/post-fader.
If this switch is on ( ), the post-fader MONO/C signal will be sent to the matrix (page 18).
F ON/EDIT switch / ON, CHECK indicators
The function of this switch and these indicators will
change depending on the mode of the M2500.
● In normal mode
You can use the ON/EDIT switch to turn MONO/C
OUT on/off. When this is switched on/off, the ON
indicator will be lit/dark to indicate the status. Channels that are switched off will not send any signals to
the MONO/C jack or to the matrix.
● In check mode
When a scene (which contains the on/off state of the
ON/EDIT switches) is selected, the on/off status
memorized in that scene will be indicated by the lit/
dark status of the CHECK indicator. In check mode,
you can also use the ON/EDIT switch to switch the
CHECK indicator between lit/dark. (The current on/
off setting will not be affected.) For details on check
mode, refer to page 32.
G Fader
This adjusts the output level of MONO/C.
Control panel
H AFL switch
Using this switch, the signal sent to the MONO/C
OUT jack can be monitored from the MONITOR
OUT/PHONES jacks. If the PFL switches of all input
channels are off, turning this AFL switch on (the
indicator above the switch will light) will allow you to
monitor the output signal of the MONO/C section
from the MONITOR OUT/PHONES jacks. Use the
MASTER PFL switch of the monitor section to switch
the monitor signal between pre/post-fader.
INSERT I/O
0dB
ST L
LR
SUB IN
LR
LR
MONO
ST
MONO
ST
ON
LR
MONITOR
MASTER
INPUT
(PFL)
PFL AFL
MONO
ST
ON
G1/A7
G2/A8
G3/A9
G4/A10
G5/A11
G6/A12
G7/A13
G8/A14
STEREO
MONO/C
MATRIX
STEREO
MONO/C
Note: When using the AFL switch to monitor the
signal of the MONO/C section from the MONITOR OUT jacks, be aware that the monitor signal
will not be output from the MONITOR OUT
MONO/C jack, but will be output monaurally
from the MONITOR OUT L/R jacks.
LR
LR
3
ST OUT
+4dB
L
CHECK
ON
1
Control
ON/EDIT
from CPU
2
AFL
4
MATRIX
INSERT I/O
0dB
ST R
ST OUT
+4dB
R
ON
INSERT I/O
0dB
MONO/C
7 6
+4dB
MONO/C
CHECK
ON
5
MATRIX
Control
ON/EDIT
from CPU
AFL
8
L
L+R
MONITOR
OUT
+4dB
LEVEL
R
MASTER
PFL
MONO/C
ON
INPUT
MASTER
PHONES
M2500—Owner’s Manual
17
Control panel
D G1/A7–G8/A14 controls
Matrix section
The M2500 provides an eight channel matrix section
that allows the output signals from the G1/A7–G8/
A14 section, the output signals from the stereo/monaural master section, and the input signals from the
SUB IN MATRIX jacks to be mixed at a desired level.
Matrix 1–8 are output individually from MATRIX
OUT jacks 1–8 (page 27), and can be used as mixes
for foldback or individual monitor systems.
When the MATRIX switches of the G1/A7–G8/A14
section (page 11) are on, these controls adjust the
level of the signal that is sent from the corresponding
GRP/AUX OUT to the matrix. The “▲” position is
nominal level.
E LEVEL control
This adjusts the final output level of the matrix. The
“▲” position is nominal level.
F ON switch
This switches the output of the matrix on/off.
G AFL switch
0
0
1
0
L
SUB IN
L
ST
R
2
0
R
3
0
MONO/C
0
G1 / A7
Using this switch, the signal of the matrix can be
monitored from the MONITOR OUT/PHONES
jacks. If the PFL switches of all input channels are off,
turning this AFL switch on will allow you to monitor
the output signal of the corresponding matrix from
the MONITOR OUT/PHONES jacks. Use the MASTER PFL switch of the monitor section to switch the
monitor signal between pre/post-fader (LEVEL control).
0
G2 / A8
0
4
G1/A7
G2/A8
G3/A9
G4/A10
G5/A11
G6/A12
G7/A13
G8/A14
G4 / A10
0
LR
SUB IN
MATRIX
0
STEREO
MONO/C
G3 / A9
LR
4
G5 / A11
G1/A7
0
G6 / A12
G2/A8
0
G7 / A13
G7/A9
0
G8 / A14
6
ON
5
7
G7/A11
G7/A12
AFL
G7/A13
MATRIX 1
G8/A14
ST L
5
LEVEL
6
to METER
MATRIX OUT
+4dB
1-8
ON
MONITOR
INPUT
MASTER
(PFL)
PFL AFL
2
ST R
A SUB IN L/R control
MONO/C
These adjust the signal levels that are input to the
matrix from the rear panel SUB IN MATRIX jacks
(page 28). The “▲” position is nominal level (0 dB).
SUB IN L
SUB IN R
1
B ST L/R controls
When the MATRIX switch of the STEREO section
(page 16) is on, these controls adjust the level of the
signal that is sent from the STEREO section to the
matrix. The “▲” position is nominal level.
C MONO/C control
When the MATRIX switch of the MONO/C section
(page 16) is on, this control adjusts the level of the
signal that is sent from the MONO/C section to the
matrix. The “▲” position is nominal level.
18
M2500—Owner’s Manual
L
SUB IN
+4dB
MATRIX
R
3
LR
AFL
7
MONO
ST
MONO
ST
ON
10
LEVEL
MONO
ST
ON
0
G7/A10
LR
LR
Control panel
Monitor section
In this section you can select the signal that will be
monitored from the MONITOR OUT jacks and the
PHONES jacks.
1
INPUT
MASTER
MASTER
PFL
Monitor signal priority order
4
L+R
There is a priority order for the signals that can be
selected as monitor sources. While a higher priority
signal is being monitored, it is not possible to monitor signals of a lower priority. Multiple monitor
sources can be selected simultaneously if they are all
of the same priority level.
The priority order of the various monitor sources is
shown below.
0
2
3
10
5
LEVEL
6
ON
MONITOR
Priority order 1
0
10
7
PHONES
• Pre-fader signal of a monaural input channel
(PFL switch)
• Pre-fader signal of a stereo input channel
(PFL switch)
When a PFL switch is turned on, the pre-fader signal
of that input channel can be monitored from the
MONITOR OUT/PHONES jacks.
Priority order 2
• Pre/post-fader signals of the AUX 1–6 section
(AFL switch)
• Pre/post-fader signals of the A7/G1–A14/G8 section (AFL switch)
• Pre/post-fader signals of the G1/A7–G8/A14 section (AFL switch)
• Pre/post-fader signals of the STEREO section
(AFL switch)
• Pre/post-fader signals of the MONO/C section
(AFL switch)
• Pre/post-fader signals of the matrix section
(AFL switch)
When a AFL switch of one of these sections is turned
on, the pre/post-fader signal of the corresponding
section can be monitored from the MONITOR OUT/
PHONES jacks.
Priority order 3
• ST OUT (L, R, MONO/C) output signals
If all PFL and AFL switches of priority orders 1 and 2
are off, the ST OUT (L, R, MONO/C) output signal
can be monitored from MONITOR OUT L, R, and
MONO/C.
The PHONES jack will monitor the ST OUT (L/R)
output signal.
8
PHONES
A INPUT indicator
If even one of the input channel PFL switches are on,
this indicator will light. When this indicator is lit, you
are monitoring a signal of priority order 1.
B MASTER indicator
If even one of the AFL switches of the GROUP/AUX
master section, the stereo/monaural master section,
or the matrix section are on, this indicator will light.
In this case if the INPUT indicator (1) is dark, you
are monitoring the pre/post-fader signal from one of
the sections (priority order 2).
C MASTER PFL switch
If this switch is on ( ), the MONITOR MASTER
PFL signals (pre-fader signals of priority order 2) can
be monitored from the MONITOR OUT/PHONES
jacks. If this switch is off ( ), the MONITOR MASTER AFL signals (after-fader signals of priority order
2) can be monitored from the MONITOR OUT/
PHONES jacks.
M2500—Owner’s Manual
19
Control panel
D L+R switch
G PHONES (headphone) control
If this switch is on ( ), the monitor signal sent to
the MONITOR OUT/PHONES jacks will be mixed to
monaural.
This adjusts the level of the signal that is output from
the PHONES jack. It does not affect the signal that is
output from the MONITOR OUT jacks. The “▲”
position is nominal level.
E LEVEL control
H PHONES jack
This adjusts the final output level from the MONITOR OUT jacks (L, R, MONO/C). It does not affect
the signal that is output from the PHONES jack. The
“▲” position is nominal level.
A set of monitoring headphones can be connected
here.
F ON switch
LR
SUB IN
LR
LR
MONO
ST
MONO
ST
ON
LR
MONITOR
MASTER
INPUT
(PFL)
PFL AFL
MONO
ST
ON
G1/A7
G2/A8
G3/A9
G4/A10
G5/A11
G6/A12
G7/A13
G8/A14
STEREO
MONO/C
MATRIX
STEREO
MONO/C
This is an on/off switch for the signal that is output
from the MONITOR OUT jacks (L, R, MONO/C). If
this is on, the indicator above the switch will light.
This switch does not affect the signal that is output
from the PHONES jack.
LR
LR
INSERT I/O
0dB
ST L
ST OUT
+4dB
L
CHECK
ON
Control
ON/EDIT
from CPU
AFL
MATRIX
INSERT I/O
0dB
ST R
ST OUT
+4dB
R
ON
INSERT I/O
0dB
MONO/C
+4dB
MONO/C
CHECK
ON
MATRIX
Control
ON/EDIT
from CPU
AFL
4
5
L+R
LEVEL
6
L
MONITOR
OUT
+4dB
R
MASTER
PFL
MONO/C
ON
INPUT
MASTER
PHONES
1 2
20
M2500—Owner’s Manual
7
8
Control panel
Talkback/oscillator section
F AUX 1-2 switch
G AUX 3-6 switch
H AUX 7-10 switch
I AUX 11-14 switch
J ST switch
PINK
K MONO/C switch
10kHz
1kHz
100Hz
2
AUX1-2
ON
OSCILLATOR
AUX3-6
AUX7-10
AUX11-14
6
7
8
9
These switches send the talkback or oscillator signal
to AUX buses 1–2, AUX buses 3–6, AUX buses 7–10,
AUX buses 11–14, the STEREO bus, and/or the
MONO/C bus. Each switch can be turned on/off
independently.
3
ST
MIC
4
MONO/C
0
1
J
K
10
3
4
5
AUX
7 9 11 13
8 10 12 14
LR
6
from CPU
TB/OSC
5
2
STEREO
MONO/C
1
MIC
ON
TALKBACK
ON
3
TB/OSC
5 4
67 8 9 JK
A OSCILLATOR select switches
These switches select a test tone oscillator, and start
oscillation. Only one switch at a time can be selected.
The corresponding indicator will light to show the
switch that is turned on.
• PINK switch
This generates pink noise.
• 10 kHz/1 kHz/100 Hz switches
These generate a sine wave of the corresponding frequency.
Note: The oscillator cannot be used together with
talkback. If you wish to use the oscillator, you must
turn off the talkback ON switch (5).
B OSCILLATOR ON switch
This switch turns the oscillator on/off.
C MIC jack
This is an XLR-3-31 input jack (unbalanced) for connecting a talkback mic. Mics of 50–600Ω impedance
are supported.
D TB/OSC control
This adjusts the level of the talkback or oscillator.
E ON switch
This is an on/off switch for the talkback. If this is on,
the indicator above the switch will light. If you wish
to use the oscillator, you must turn off this switch.
M2500—Owner’s Manual
21
Control panel
Meter select section
In this section you can select the source whose level
will be displayed by the meter bridge section. Only
one of the sources 1–4 can be selected.
MATRIX
A7-14/G1-8
AUX1-6
G1-8/A7-14
1
2
3
4
Control section
The M2500 is able to save “scenes“ that contain the
on/off status for each monaural/stereo input channel,
the G1/A7–G8/A14 section, the STEREO section, and
the MONO/C section. (This functionality is referred
to as “scene memory.”) In the Control section you
can save scenes, and recall a previously-saved scene.
(For details on scene memory procedure, refer to
page 30.)
UTILITY
1
RECALL
2
METER
SELECT
3
A MATRIX switch
MEMORY
If this switch is pressed, meters 1/7–8/14 (page 24)
will display the output levels of MATRIX OUT 1–8.
At this time, the indicator located at the left of the
switch will light.
C AUX 1-6 switch
If this switch is pressed, meters 1/7–6/12 (page 24)
will display the output levels of AUX OUT 1–6.
(Meters 7/13 and 8/14 will not function.) At this
time, the indicator located at the left of the switch
will light.
5
CHECK
B A7-14/G1-8 switch
If this switch is pressed, meters 1/7–8/14 (page 24)
will display the output levels of AUX/GROUP OUT
A7/G1–A14/G8. At this time, the indicator located at
the left of the switch will light.
4
STORE
1
2
3
4
5
6
7
8
9
6
0
ENTER
7
D G1-8/A7-14 switch
When this switch is pressed, meters 1/7–8/14
(page 24) will display the output levels of GRP/AUX
OUT G1/A7–G8/A14. At this time, the indicator
located at the left of the switch will light.
SCENE
MEMORY
1
2
3
4
5
6
7
8
DIRECT
RECALL
CONTROL
22
M2500—Owner’s Manual
8
Control panel
G ▲/▼ switches
A UTILITY switch
Pressing this switch will access Utility mode
(page 34), in which you can make settings for scene
memory and MIDI. When Utility mode is selected,
the indicator above the switch will light.
B RECALL switch
Use this switch to recall a previously-stored scene. If
you select a scene number that has not been stored
and attempt to recall it, the scene will not change, but
the MEMORY display (3) will indicate “
” (No
data) for approximately two seconds.
C MEMORY display
This is a three-digit LED display. In Normal mode
and Check mode (page 32), it displays a scene memory number in the range of 1–130. In Utility mode, it
indicates the utility item or its value.
The function of the ▲/▼ switches will vary depending on the mode of the M2500.
● Normal mode/Check mode
Use these switches to increment or decrement the
scene memory number. However, scene memory
numbers 129 and 130, and scene memory numbers
1–8 when using mute groups (page 37) can be
selected only by using the 0–9/ENTER switches.
● Utility mode
Use the switches to change the value of the selected
utility item.
Hint: In Normal mode and Check mode, holding
either of the ▲/▼ switches for one second or more
will cause the scene memory number to change
more rapidly.
H DIRECT RECALL 1–8 switches
This will light if the display shows a scene
memory number in
which no scene has
been stored. If not even
one scene has been
stored in scene memory,
this dot will light when
the power is turned on.
This will light
while bulk
data is being
received at
the MIDI IN
connector.
This will light when
the settings of the
last-recalled scene
are modified in
Normal mode, or
when the settings
of the scene selected in Check mode
are modified.
D STORE switch
Use this to store a scene. When you press this switch
once, the display will indicate “
,” indicating that
the M2500 is ready to store the scene. If you press the
STORE switch once again, the scene will be stored. If
you decide to cancel without storing, press any other
switch. Before storing a scene in scene memory, make
sure that memory protect (page 34) is turned off.
The DIRECT RECALL 1–8 switches can be used in
one of two ways, depending on the Utility mode setting. With the factory settings, these switches will
function as “direct recall” switches that recall scene
memory numbers 1–8 at a touch. By changing the
setting in Utility mode, you can use these switches to
simultaneously select or cancel the mute (off) settings that have been saved in scene memory numbers
1–8. (For details on direct recall and mute groups,
refer to page 31 and page 37.)
Note: Pressing a DIRECT RECALL switch will not
change the scene if no scene has been saved in the
corresponding scene memory number. If this
occurs, the MEMORY display will indicate “
”
(No data) for approximately two seconds.
Note: Be aware that in Check mode, pressing a
DIRECT RECALL switch will forcibly cancel
Check mode and recall the scene.
E CHECK switch
Use this to change from Normal mode to Check
mode. In Check mode, the indicator located above
the switch will light.
F 0–9/ENTER switches
In Normal mode or Check mode, these switches are
used to numerically specify a scene memory number.
Use the 0–9 switches to enter a number, and press the
ENTER switch to finalize that number. The 0–9
switches cannot be used in Utility mode.
M2500—Owner’s Manual
23
Control panel
Meter bridge
1
20
5 3 1
0
10 7
VU
1/7
PEAK
20
3
+
5 3 1
0
10 7
VU
PEAK
20
3
10 7
+
3 10
4
2
PEAK
VU
20
3
+
2/8
5 3 1
0
10 7
VU
PEAK
20
3
+
7/13
5 3 1
0
10 7
VU
PEAK
3
+
+15V
–15V
+12V
PHANTOM MASTER
8/14
20
5 3 1
0
10 7
PEAK
VU
20
3
+
STEREO L
5 3 1
0
10 7
VU
MONO/C
PFL/AFL L
3
A 1/7–8/14 level meters
According to the setting of the meter select switches
(page 22), these indicate the output levels of
MATRIX OUT 1–8, AUX/GRP OUT A7/G1–A14/G8,
AUX OUT 1–6, or GRP/AUX OUT G1/A7–G8/A14.
(If the AUX 1–6 switch has been selected in the meter
select section, meters 7/13 and 8/14 will not function.) Each meter has a PEAK indicator that lights
3 dB before peak level.
B +15V/–15V/+12V indicators
The respective indicator will light when +15V/–15V/
+12V power is being supplied correctly from the rear
panel DC POWER INPUT connector (page 29) to
the M2500 mixer.
C PHANTOM MASTER indicator
This will light when the rear panel PHANTOM MASTER switch (page 29) is on.
D STEREO, PFL/AFL level meters
The signal shown by each level meter will change
depending on the settings of the input channel PFL
switches and the AFL switches of the GROUP/AUX
master section etc.
• PFL/AFL switches= all off
The meters will show the output level of the signals
that are output from the ST OUT L/R jacks (page 28).
• PFL switch= on
The meters will show the signal level that is output
from the MONITOR INPUT PFL bus.
• AFL switch= on (PFL switches= all off)
The meters will show the signal level that is output
from the MONITOR MASTER AFL bus.
Each meter has a PEAK indicator that lights 3 dB
before peak level.
24
M2500—Owner’s Manual
PEAK
20
3
+
–
5 3 1
0
10 7
PEAK
3
VU
+
STEREO R
PFL/AFL R
5
E MONO/C level meter
The signal shown by this level meter will change
depending on the settings of the input channel PFL
switches and the AFL switches of the GROUP/AUX
master section etc.
• PFL/AFL switches= all off
The meter will show the output level of the signal
that is output from the MONO/C OUT jack
(page 28).
• PFL switch= on
• AFL switch= on
The MONO/C level meter will not function.
This meter has a PEAK indicator that lights 3 dB
before peak level.
Rear panel
Monaural input channel
input/output jacks
24
23
22
21
20
19
18
17
INPUT
INPUT
INPUT
INPUT
INPUT
INPUT
INPUT
INPUT
INSERT
I/O 0dB
INSERT
I/O 0dB
INSERT
I/O 0dB
INSERT
I/O 0dB
INSERT
I/O 0dB
INSERT
I/O 0dB
INSERT
I/O 0dB
INSERT
I/O 0dB
1
2
A INPUT jacks
These are XLR-3-31 type input jacks (balanced). If
the rear panel PHANTOM MASTER switch and the
+48 V switch of the corresponding monaural input
channel are on, phantom power will be supplied. The
nominal input levels and pin wiring are as follows.
■ Nominal input
• –26 dB pad switch= on / +10 dB to –34 dB
• –26 dB pad switch= off / –16 dB to –60 dB
Male XLR plug
1 (ground)
3 (cold)
2 (hot)
B INSERT I/O jacks
These are TRS phone jacks for inserting external
effect units into each monaural input channel. The
nominal level is 0 dB. The pin wiring is as follows.
Tip (send)
1/4" phone plug
Tip (send)
Ring (return)
1/4" TRS phone plug
Sleeve (ground)
To processor’s input
Sleeve (ground)
Tip (return)
1/4" phone plug
Connect to INSERT I/O jack
From processor’s output
Sleeve (ground)
M2500—Owner’s Manual
25
Rear panel
Stereo input channel input/
output jacks
ST CH 4 ST CH 3 ST CH 2
INPUT
INPUT
INPUT
L/MONO
L/MONO
L/MONO
R
R
R
ST CH 1
INPUT A
L
5
3
R
PHANTOM
MASTER
OFF
ON
INPUT B
L
R
READ OWNER’S MANUAL
C INPUT A jacks
4
DC POWER INPUT
E INPUT jacks
These are XLR-3-31 type input jacks (balanced) for
stereo input channel 1. Nominal input level is +10 dB
to –30 dB. In order to use these jacks, you must set
the A/B select switch of stereo input channel 1 to the
A position. The pin wiring is as follows.
Male XLR plug
1 (ground)
3 (cold)
These are TRS phone input jacks (balanced) for stereo input channels 2–4. Nominal input level is
+10 dB to –30 dB. The pin wiring is as follows.
Hot
Cold
Ground
2 (hot)
D INPUT B jacks
These are RCA phono input jacks (unbalanced) for
stereo input channel 1. Nominal input level is +10 dB
to –20 dB. In order to use these jacks, you must set
the A/B select switch of stereo input channel 1 to the
B position. The pin wiring is as follows.
RCA phono plug
Tip (send)
Sleeve (ground)
26
M2500—Owner’s Manual
If you wish to input a monaural signal to stereo input
channels 2–4, insert a plug only into the L/MONO
jack. In this case, the signal that is input to the L/
MONO jack will be sent to both L and R of the stereo
input channel.
Rear panel
Master section input/output
jacks
L
MIDI
6
5
MONITOR
OUT +4dB
4
ST OUT
3
MATRIX OUT +4dB
+4dB
2
AUX/GRP OUT +4dB
1
GRP/AUX OUT +4dB
AUX OUT +4dB
L
L
5
1
A11/
G6
A7/
G1
G5/
A11
G1/
A7
3
1
MONO
/C
MONO
/C
6
2
A12/
G6
A8/
G2
G6/
A12
G2/
A8
4
2
R
R
7
3
A13/
G7
A9/
G3
G7/
A13
G3/
A9
5
8
4
A14/
G8
A10/
G4
G8/
A14
G4/
A10
6
IN
OUT
THRU
ST R
MONO/C
ST L
6
5
4 AUX 3
2
1
G8/A14
INSERT I/O
K
G7/A13
G5/A11
G4/A10
G3/A9
G2/A8
G1/A7
ST R
MONO/C
9
A AUX OUT jacks
ST L
8
L
MATRIX
+4dB
7
C AUX/GRP OUT jacks
These are XLR-3-32 output jacks (balanced) that
individually output the signals of each channel of the
AUX 1–6 section. Nominal output level is +4 dB. The
pin wiring is as follows.
2 (hot)
3 (cold)
These are XLR-3-32 output jacks (balanced) that
individually output the signals of each channel of the
A7/G1–A14/G8 section. Nominal output level is
+4 dB. The pin wiring is as follows.
Female XLR plug
2 (hot)
3 (cold)
1 (ground)
1 (ground)
D MATRIX OUT jacks
B GRP/AUX OUT jacks
These are XLR-3-32 output jacks (balanced) that
individually output the signals of each channel of the
G1/A7–G8/A14 section. Nominal output level is
+4 dB. The pin wiring is as follows.
These are XLR-3-32 output jacks (balanced) that
individually output the matrix 1–8 signals. Nominal
output level is +4 dB. The pin wiring is as follows.
Female XLR plug
Female XLR plug
R
SUB IN
+4dB
J
Female XLR plug
G6/A12
2 (hot)
2 (hot)
3 (cold)
3 (cold)
1 (ground)
1 (ground)
M2500—Owner’s Manual
27
Rear panel
E ST OUT, MONO/C OUT jacks
I INSERT I/O G1/A7–G8/A14 jacks
These are XLR-3-32 output jacks (balanced) that output the signal of the stereo/monaural master section.
Nominal output level of each jack is +4 dB. The pin
wiring is as follows.
These are TRS phone jacks for inserting an external
effect processor into each output channel of the G1/
A7–G8/A14 section. Nominal input level is 0 dB. The
pin wiring is as follows.
Tip (send)
2 (hot)
Female XLR plug
3 (cold)
1/4" phone plug
Tip (send)
Ring (return)
1/4" TRS phone plug
1 (ground)
To processor’s input
Sleeve (ground)
Tip (return)
Sleeve (ground)
1/4" phone plug
Connect to INSERT I/O jack
From processor’s output
F MONITOR OUT jacks
Sleeve (ground)
These are XLR-3-32 output jacks (balanced) that output the signal of the stereo/monaural master section,
or the monitor source that is selected by the control
panel. Nominal output level of each jack is +4 dB.
The pin wiring is as follows.
J INSERT I/O AUX jacks
These are TRS phone jacks for inserting an external
effect processor into each output channel of the AUX
1–6 section. Nominal input level is 0 dB. The pin wiring is as follows.
2 (hot)
Female XLR plug
3 (cold)
Tip (send)
1/4" phone plug
Tip (send)
Ring (return)
1 (ground)
1/4" TRS phone plug
Sleeve (ground)
Note: When outputting the monitor source
selected by the control panel, only the MONITOR
OUT L/R jacks are used.
To processor’s input
Sleeve (ground)
Tip (return)
1/4" phone plug
Connect to INSERT I/O jack
From processor’s output
Sleeve (ground)
K INSERT I/O ST L/R, MONO jacks
G SUB IN MATRIX jacks
These are 1/4" phone jacks (unbalanced) for mixing a
line level signal from an external device into the
MATRIX bus. Nominal input level is +4 dB. The pin
wiring is as follows.
These are TRS phone jacks for inserting an external
effect processor into each output channel of the stereo/monaural master section. Nominal input level is
0 dB. The pin wiring is as follows.
Tip (send)
Tip (send)
1/4" phone plug
1/4" phone plug
Tip (send)
Ring (return)
1/4" TRS phone plug
Sleeve (ground)
Sleeve (ground)
To processor’s input
Sleeve (ground)
Tip (return)
1/4" phone plug
Connect to INSERT I/O jack
From processor’s output
Sleeve (ground)
H SUB IN ST L/R, MONO/C jack
These are 1/4" phone jacks (unbalanced) for mixing a
line level signal from an external device into the STEREO bus L/R and MONO/C bus respectively. Nominal input level is +4 dB. The pin wiring is as follows.
Tip (send)
1/4" phone plug
Sleeve (ground)
28
M2500—Owner’s Manual
Rear panel
L MIDI connectors
These are standard five-pin MIDI connectors. By
connecting these to a sequencer or to the MIDI interface of a computer, scenes can be selected from an
external device, or scene memories can be backed up.
● MIDI IN connector
MIDI data is received at this connector. Use a MIDI
cable to connect this to the MIDI OUT connector of
your external MIDI device.
By connecting two PW3000MA units to the M2500
as shown in the following diagram, you can ensure a
stable supply of power. In this case, each PW3000MA
will supply 50% of the power to the M2500. In the
unlikely event that one of the PW3000MA units fail,
the other PW3000MA will automatically supply
100% of the power to the M2500.
M2500
● MIDI OUT connector
MIDI data is transmitted from this connector. Use a
MIDI cable to connect this to the MIDI IN connector
of your external MIDI device.
● MIDI THRU connector
Data received at the MIDI IN connector is re-transmitted without change from this connector.
For example if you have connected three M2500 units
via MIDI as shown below, switching scenes on the
master M2500 (1) can cause the slave M2500 units
(2/3) to switch scenes in the same way.
MIDI OUT
MIDI IN
MIDI THRU
DC POWER INPUT
DC POWER INPUT
DC PARALLEL INPUT
DC OUTPUT
PW3000MA
DC PARALLEL INPUT
DC OUTPUT
MIDI IN
DC OUTPUT
M2500
M2500
M2500
1
2
3
PW3000MA
DC PARALLEL INPUT
PHANTOM
MASTER
OFF
ON
DC OUTPUT
M
N
READ OWNER’S MANUAL
O
DC POWER INPUT
M PHANTOM MASTER switch
LAMP
This is the master switch for the +48 V phantom
power supply.
N DC POWER INPUT connector
Connect the supplied PW3000MA power supply to
this connector to supply power to the M2500.
Note: The PW3000M power supply cannot be
used with the M2500 mixer.
O LAMP connector
This is an XLR-4-31 (four-pin female) output connector that supplies power to the optional lamp. The
M2500-24/32 have two LAMP connectors, and the
M2500-40C/48C/56C have three LAMP connectors.
Note: Before connecting or disconnecting the
power supply cable, make sure that the power of
the PW3000MA is turned off.
M2500—Owner’s Manual
29
The Scene Memory function
What is scene memory?
Scene memory is a function that stores the on/off status of the monaural/stereo input channels, the G1/
A7–G8/14 section, the STEREO section, and the
MONO/C section as one of 128 “scenes.” A scene that
has been stored can be easily recalled at any time.
Program change messages received at the MIDI IN
connector can also recall scenes, and when a scene is
recalled, a corresponding program change message
can be transmitted from the MIDI OUT connector.
With the factory settings, the scenes stored in the
M2500 are set as follows. Of these, scene memory
numbers 1–128 can be rewritten, and 129 and 130 are
for recall only.
Scene memory
number
Contents
1
All on
2
All off
3
All on
4
All off
5
All on
6
All off
7
All on
8
All off
9–128
No data
129
All on
130
All off
Scene memory operations are performed in the Control section. For details on the parts of the control
section and their function, refer to page 22.
Note: With the factory settings, the M2500 will
start up with scene memory number 1 recalled.
30
M2500—Owner’s Manual
Modes of the scene memory
function
The Scene Memory function has the following three
modes.
● Normal mode
This is the normal operating mode in which scenes
are recalled and stored. When the M2500 is in Normal mode, the indicators of the CHECK switch and
UTILITY switch in the control section will be dark.
For details on operation in Normal mode, refer to
page 31.
● Check mode
In this mode you can check the contents of a scene
before you recall it, or edit the on/off settings of a
saved scene without changing the current on/off status. In Check mode, the indicator of the CHECK
switch will be lit. For details on operation in Check
mode, refer to page 32.
● Utility mode
In this mode you can make various settings related to
scene memory and MIDI. In Utility mode, the indicator of the UTILITY switch will be lit. For details on
operation in Utility mode, refer to page 34.
The Scene Memory function
Operation in Normal mode
Recalling a scene
1. Use the ▲/▼ switches or the 0–9/ENTER
switches of the control section to make the
MEMORY display show the scene memory
number that you wish to recall.
Using Direct Recall to recall a
scene
With the factory settings, you can use the DIRECT
RECALL of the control section to directly recall scene
memory numbers 1–8. (This is called the Direct
Recall function.) When you use direct recall, scene
memory numbers 1–8 will be recalled the instant you
press a DIRECT RECALL switch 1–8, without your
having to press the RECALL switch.
1
1
2
3
4
5
6
3
7
8
4
9
0
5
2
6
ENTER
7
8
DIRECT
RECALL
The selected scene memory number will blink.
Note:
• Scene memory numbers 129 and 130 can be
selected only by the 0–9/ENTER switches.
• If the mute groups (page 37) are being used,
scene memory numbers 1–8 can be selected
only by the 0–9/ENTER switches.
2. Press the RECALL switch.
RECALL
The scene of the selected scene memory number will
be recalled.
Note: If a scene has not been saved in the selected
scene memory number, the MEMORY display will
indicate “
” (No data), and the scene will not
be recalled.
Hint: If you press the ▲/▼ switches after using
direct recall, the scene memory number that had
been selected prior to the direct recall operation
will be selected.
Note: If you are using the mute groups (page 37),
the DIRECT RECALL switches will function as
mute group switches, and direct recall will not be
available.
Storing a scene
1. With the M2500 in Normal mode, use the ON/
EDIT switches of the monaural/stereo input
channels, the G1/A7–G8/A14 section, the STEREO section, and the MONO/C section to make
the desired on/off settings.
Note: Operating the ON/EDIT switches in Normal
mode will affect the signals that are output from
the M2500. If you wish to make on/off settings for
a scene without affecting the current signal output,
such as during a rehearsal or an actual performance, use Check mode (page 32).
M2500—Owner’s Manual
31
The Scene Memory function
2. Use the ▲/▼ switches or the 0–9/EDIT switches
to make the MEMORY display indicate the
scene memory number into which you wish to
store the scene. (Scene memory numbers 129
and 130 are recall-only, and cannot be
selected.)
1
2
3
4
5
6
7
8
9
0
ENTER
Check mode operation
In Check mode, you can check the settings of a scene
before recalling it, or edit the on/off settings of a
scene without affecting the current on/off statuses.
Checking the contents of a scene
you wish to recall
1. In Normal mode, press the CHECK switch of the
control section.
CHECK
The indicator of the CHECK switch will light, and
you will enter Check mode.
2. Use the ▲/▼ switches or the 0–9/ENTER
switches to make the MEMORY display indicate
the scene memory number whose settings you
wish to check.
The selected scene memory number will blink in the
display.
Hint: The scenes stored in scene memory numbers
1–8 can be recalled instantly using Direct Recall.
You will find it convenient to store frequently-used
scenes in these scene memory numbers.
3. Press the STORE switch.
The MEMORY display will blink “
,” indicating
that it is ready to store. If you decide to cancel without storing, press any key other than STORE.
Note: If you use the 0–9 switches, the scene memory number will not be finalized until you press
the ENTER switch.
1
2
3
4
5
6
7
8
9
0
ENTER
STORE
4. Press the STORE key once again to store the
scene.
Note: When you store a scene, the contents of the
store destination scene memory number will be
overwritten, and it will not be possible to recover
the previous contents.
Note: If memory protect is on, the MEMORY display will indicate “
,” and the scene will not be
stored. (With the factory settings, this is turned
off.) To turn memory protect off, refer to page 34.
32
M2500—Owner’s Manual
The on/off settings of the selected scene will be indicated by the lit/dark states of the CHECK indicators
for the monaural/stereo input channels, the G1/A7–
G8/A14 section, the STEREO section, and the
MONO/C section. This allows you to check the on/
off settings of the selected scene before you actually
recall it.
The Scene Memory function
3. If you wish to actually recall the selected scene,
press the RECALL switch.
RECALL
The scene whose on/off settings you checked will be
recalled, and the M2500 will automatically return to Normal mode. If you wish to return to Normal mode without
recalling the scene, press the CHECK switch once again.
Note: If you press a DIRECT RECALL 1–8 switch
while in Check mode, the corresponding scene
memory number 1–8 will be forcibly recalled, and
Check mode will also be cancelled.
Editing and storing the scene you
are checking
In Check mode, you can edit the scene whose on/off settings you are checking with the CHECK indicators, and
then store it once again. This is convenient when you
wish to modify the contents of the scene that you will
recall next, without changing the current on/off settings.
1. In Normal mode, press the CHECK switch to
enter Check mode.
CHECK
2. Use the ▲/▼ switches or the 0–9/ENTER
switches to select the scene memory number
that you wish to edit.
Note: If you use the 0–9 switches, the scene memory number will not be finalized until you press
the ENTER switch.
1
2
3
4
5
6
7
8
9
0
The lit/dark status of the CHECK indicators for each
monaural/stereo input channel, the G1/A7–G8/A14
section, the STEREO section, and the MONO/C section will indicate the on/off settings of the selected
scene.
3. Use the ON/EDIT switches of each monaural/
stereo input channel, the G1/A7–G8/A14 section, the STEREO section, and the MONO/C
section to edit the on/off settings.
CHECK
ON
ON/EDIT
In Check mode, pressing an ON/EDIT switch will
switch the lit/dark status of the CHECK indicator.
The actual on/off setting (the setting of the ON indicator) will not be affected.
4. To store the edited on/off settings in the scene
once again, press the STORE switch twice.
STORE
When you press the STORE key the first time, the
MEMORY display will blink “
,” indicating that
it is ready to store. If at this point you decide to cancel
without storing, press any key other than STORE.
When you press the STORE key the second time, the
scene will be stored.
5. Press the CHECK key once again to return to
Normal mode.
Instead of pressing the CHECK switch once again,
you can press the RECALL switch to recall the scene
you stored and return to Normal mode.
Note: If a MIDI program change is received while
in Check mode, Check mode will be cancelled.
ENTER
M2500—Owner’s Manual
33
The Scene Memory function
Utility mode procedures
In Utility mode you can make various settings related
to scene memory and MIDI. In this mode you can
also transmit a bulk dump to backup the entire contents of scene memory on your sequencer or computer.
Basic procedure in Utility mode
1. From Normal mode, press the
UTILITY switch in the control section and immediately release it. (If
you press and hold the UTILITY
UTILITY
switch for one second or more,
you will exit Utility mode and
return to Normal mode.)
The indicator above the UTILITY switch will light,
and you will enter Utility mode. At this time, the
MEMORY display will alternately indicate the currently selected utility item and its value.
2. Repeatedly press the UTILITY
switch so that the desired item
appears in the MEMORY display.
UTILITY
Note: If the “ ” (bulk dump request) item is displayed, pressing the UTILITY switch once again
will return you to Normal mode.
The items that can be selected in Utility mode and
their values are as follows.
Utility items
Values
(battery check) ........................................... *.*
(*.* is the voltage value)
This shows the voltage of the internal battery. If one
of the following displays appears, please contact your
dealer to have the battery replaced or service performed.
• If instead of “ ” the display alternately shows
“ ” and the voltage value
This indicates that the voltage of the internal battery
is lower than 2.5 V.
• If instead of “ ” the display alternately shows
“ ” and “ ”
An abnormal voltage has occurred.
(memory protect)................................on/oFF
(factory setting: “
”)
This is a function that prevents important scene
memories from being erased accidentally. If this is on
(on), it will not be possible to store scenes. Also, the
contents of scene memory will not be rewritten even
if a bulk dump is received from the MIDI IN connector.
(recall operation) ............................... dir/GrP
(factory setting: “
”)
Specify the function of the DIRECT RECALL 1–8
switches.
3. Use the ▲/▼ switches to modify
the value of the selected item.
For details on the selectable items and
their values, refer to the following
section “Utility items.” For some
items, other switches are also used to
execute the function.
4. To exit Utility mode, press and
hold the UTILITY switch for one
second or longer. The M2500 will
return to Normal mode.
Utility items
• If “
” is selected
These switches will function as direct recall switches
to directly recall scene memory numbers 1–8.
• If “
” is selected
These switches will function as mute group switches
to add/cancel mute groups 1–8. (For details on mute
groups, refer to page 37.)
UTILITY
Note: If a MIDI program change is received while
in Utility mode, the M2500 will return to Normal
mode.
(memory initialize)........................ ALL/1–128
This function erases scene memories. Specify the
value and press the STORE key to erase the scene
memory.
• If “
” is selected
All scene memories (1–128) will be erased.
• If “ ”–“
” is selected
The scene memory of the corresponding number (1–
128) will be erased.
Note:
• It is not possible to recover a scene memory
that has been erased.
• If the “ ” (memory protect) item is on, the
memory initialize function cannot be executed.
34
M2500—Owner’s Manual
The Scene Memory function
(MIDI channel) ....................................... 1–16
(factory setting: “ ”)
Select the MIDI channel that will be used when MIDI
data is transmitted/received via the MIDI IN/OUT
connectors.
(program change transmission/reception) ...
....oFF/on/LoC
(factory setting: “
”)
This specifies whether or not program change messages will be transmitted/received via the MIDI IN/
OUT connectors.
• If “
” is selected
Program changes will not be transmitted or received.
• If “ ” is selected
Program changes will be transmitted and received.
– When program changes 0–127 are received at the
MIDI IN connector, scene memory numbers 1–128
will be recalled. (However if the utility item “Recall
operation” is set to “
,” program changes 0–7
will be ignored.)
– When you recall a scene memory number 1–128 in
which a scene has been stored, a program change
0–127 will be transmitted from the MIDI OUT
connector. (Even if the Utility item “Recall Operation” is set to “
,” you can use the 0–9/ENTER
and RECALL switches to transmit program
changes 0–7 from the MIDI OUT connector.)
• If “
” is selected
Program changes will be transmitted and received.
– Program changes will be received in the same way
as for the “ ” setting.
– Even when you recall a scene memory number 1–
128 in which no scene has been stored, a program
change 0–127 will be transmitted from the MIDI
OUT connector.
(control change transmission/reception)......
.... oFF/GrP/on
(factory setting: “
”)
Specify whether control change messages will be
transmitted/received via the MIDI IN/OUT connectors.
• If “
” is selected
Control change messages will not be transmitted or
received.
• If “ ” is selected
Control change messages will be transmitted and
received.
– When control change numbers 1–70 are received,
the corresponding channel will be switched on/off.
When mute groups are used, control change numbers 105–112 will switch mute groups 1–8 on/off.
(For details refer to the following section “Control
change table.”)
• If “
” is selected
Only the control change numbers (105–112) that
correspond to mute groups 1–8 will be transmitted
and received.
(program change reception omni on/off).....
.............on/oFF
(factory setting: “
”)
Specify whether or not the MIDI channel specified by
the Utility item CH will be used when receiving program change messages.
• If “ ” is selected
Program change messages will be received on all
MIDI channels (1–16).
• If “
” is selected
Program change messages will be received only on
the MIDI channel specified by the Utility item CH.
(echo back) ..........................................on/oFF
(factory setting: “
”)
Specify whether messages received at the MIDI IN
connector will be echoed back from the MIDI OUT
connector. If this is turned “ ,” messages will be
echoed back. However if a bulk dump request is
received, that message itself will not be echoed;
rather, the bulk dump data will be transmitted.
(bulk out).......................................ALL/1–128
Transmit the contents of scene memory from the
MIDI OUT connector as MIDI bulk dump data.
Specify the desired value and press the STORE
switch, and the bulk data dump will begin. While the
data is being transmitted, the MEMORY display will
indicate “
.”
• If “
” is selected
Bulk dump data for all scene memory numbers (1–
128) will be transmitted.
• If “ ”–“
” is selected
Bulk dump data for the corresponding scene memory
number (1–128) will be transmitted.
(bulk dump request) .....................ALL/1–128
Transmit a message (bulk dump request) from the
MIDI OUT connector to request transmission of
bulk dump data. If another M2500 unit is connected
via its MIDI IN/OUT connectors, the scene memory
contents of the other M2500 will be copied to the first
M2500. Specify the value and press the STORE key to
transmit the bulk dump request.
• If “
” is selected
A bulk dump request for all scene memories will be
transmitted.
• If “ ”–“
” is selected
A bulk dump request for the scene memory of the
corresponding number (1–128) will be transmitted.
M2500—Owner’s Manual
35
The Scene Memory function
Control change table
The M2500 is able to receive control change messages
from the MIDI IN connector to switch on/off the
ON/EDIT switches of the input channels, G1/A7–G8/
A14 section, and stereo/monaural master section.
When a control change number with a value in the
range of “0–63” is received, the ON/EDIT switch of
the corresponding channel will be turned “off,” and
when a value in the range of “64–127” is received the
switch will be turned “on.” Also, when you press an
ON/EDIT switch on the M2500 to turn it on/off, the
corresponding control change number will be transmitted from the MIDI OUT connector with a value
of 127/0.
Control No.
36
Channel
Control No.
When mute groups (page 37) are being used, control
change numbers 105–112 can be received and transmitted to turn mute groups on/off. The same values
are used to indicate the on/off status as when turning
the ON/EDIT switches on/off.
Note: If you wish to use control change messages
to switch M2500 channels or mute groups on/off,
make sure that the Utility mode item CC (control
change transmission/reception) is turned “on”
(this is the factory setting).
The following table shows the M2500 channels (and
mute groups) that correspond to each control change
number.
Channel
Control No.
Mute group
1
CH INPUT 1
36
CH INPUT 36
105
MUTE GROUP 1
2
CH INPUT 2
37
CH INPUT 37
106
MUTE GROUP 2
3
CH INPUT 3
38
CH INPUT 38
107
MUTE GROUP 3
4
CH INPUT 4
39
CH INPUT 39
108
MUTE GROUP 4
5
CH INPUT 5
40
CH INPUT 40
109
MUTE GROUP 5
6
CH INPUT 6
41
CH INPUT 41
110
MUTE GROUP 6
7
CH INPUT 7
42
CH INPUT 42
111
MUTE GROUP 7
8
CH INPUT 8
43
CH INPUT 43
112
MUTE GROUP 8
9
CH INPUT 9
44
CH INPUT 44
10
CH INPUT 10
45
CH INPUT 45
11
CH INPUT 11
46
CH INPUT 46
12
CH INPUT 12
47
CH INPUT 47
13
CH INPUT 13
48
CH INPUT 48
14
CH INPUT 14
49
ST CH INPUT 1
15
CH INPUT 15
50
ST CH INPUT 2
16
CH INPUT 16
51
ST CH INPUT 3
17
CH INPUT 17
52
ST CH INPUT 4
18
CH INPUT 18
53
CH INPUT 49
19
CH INPUT 19
54
CH INPUT 50
20
CH INPUT 20
55
CH INPUT 51
21
CH INPUT 21
56
CH INPUT 52
22
CH INPUT 22
57
CH INPUT 53
23
CH INPUT 23
58
CH INPUT 54
24
CH INPUT 24
59
CH INPUT 55
25
CH INPUT 25
60
CH INPUT 56
26
CH INPUT 26
61
G1/A7 OUT
27
CH INPUT 27
62
G2/A8 OUT
28
CH INPUT 28
63
G3/A9 OUT
29
CH INPUT 29
64
G4/A10 OUT
30
CH INPUT 30
65
G5/A11 OUT
31
CH INPUT 31
66
G6/A12 OUT
32
CH INPUT 32
67
G7/A13 OUT
33
CH INPUT 33
68
G8/A14 OUT
34
CH INPUT 34
69
STEREO OUT
35
CH INPUT 35
70
MONO/C OUT
M2500—Owner’s Manual
The Scene Memory function
Mute groups
By setting the Utility mode item oP (recall operation)
to “
,” you can use the on/off settings of scene
memory numbers 1–8 as “mute groups.” In this case,
the DIRECT RECALL 1–8 switches will function as
“mute group switches” that control mute groups.
The differences in operation between the “
”
(direct recall) and “
” (mute group) settings of
the oP (recall operation) item are explained below.
■ Direct recall
If you press the DIRECT RECALL 1 switch to recall
scene memory 1, and then press the DIRECT
RECALL 3 switch to recall scene memory number 3,
the on/off settings of scene memory number 1 will be
cancelled, and replaced by the on/off settings of scene
memory number 3.
■ Mute group
If you press the DIRECT RECALL 1 switch to recall
scene memory number 1, and then press the DIRECT
RECALL 3 switch to recall scene memory number 3,
the mute (off) settings of scene memory number 1
will remain, and only the mute settings of scene
memory number 3 will be added. (At this time, both
DIRECT RECALL switches 1 and 3 will be on.) If you
then press the DIRECT RECALL 1 switch once again,
the mute settings of scene memory number 3 will
remain, and the mute settings of scene memory number 1 will be cancelled.
Mute group 1 (scene memory number 1)
CHECK
ON
ON/EDIT
MUTE
(OFF)
CHECK
ON
CHECK
ON
ON/EDIT
ON/EDIT
ON
ON
CHECK
ON
ON/EDIT
CHECK
ON
ON/EDIT
MUTE
(OFF)
ON
Mute group 3 (scene memory number 3)
CHECK
ON
Scene memory number 1
CHECK
ON
ON/EDIT
MUTE
(OFF)
CHECK
ON
CHECK
ON
ON/EDIT
ON/EDIT
ON
ON
CHECK
ON
ON/EDIT
MUTE
(OFF)
CHECK
ON
CHECK
ON
CHECK
ON
ON/EDIT
ON/EDIT
ON/EDIT
ON
ON
ON
ON/EDIT
ON
CHECK
ON
ON/EDIT
MUTE
(OFF)
CHECK
ON
ON/EDIT
MUTE
(OFF)
In the case of Mute Group
1
Scene memory number 3
2
CHECK
ON
CHECK
ON
CHECK
ON
ON/EDIT
ON/EDIT
ON/EDIT
ON
ON
ON
CHECK
ON
ON/EDIT
MUTE
(OFF)
CHECK
ON
3
ON/EDIT
4
MUTE
(OFF)
5
In the case of Direct Recall
6
The mute settings of memory number 1 are recalled
CHECK
ON
ON/EDIT
MUTE
CHECK
ON
CHECK
ON
ON/EDIT
ON/EDIT
ON
ON
CHECK
ON
ON/EDIT
MUTE
CHECK
ON
ON/EDIT
ON
7
1
8
2
3
On/off settings of memory number 1 are recalled
1
4
5
6
CHECK
ON
ON/EDIT
OFF
CHECK
ON
CHECK
ON
ON/EDIT
ON/EDIT
ON
ON
CHECK
ON
CHECK
ON
ON/EDIT
ON/EDIT
OFF
ON
2
3
4
The mute settings of memory number 3 are added
CHECK
ON
CHECK
ON
CHECK
ON
CHECK
ON
CHECK
ON
7
5
8
6
ON/EDIT
ON/EDIT
ON/EDIT
MUTE
ON
ON
ON/EDIT
MUTE
ON/EDIT
MUTE
7
1
8
2
3
Switch to the on/off settings of memory number 3
1
4
CHECK
ON
CHECK
ON
CHECK
ON
CHECK
ON
CHECK
ON
2
5
6
ON/EDIT
ON/EDIT
ON/EDIT
OFF
ON
ON
ON/EDIT
ON/EDIT
OFF
OFF
3
4
The mute settings of memory number 1 are cancelled
CHECK
ON
CHECK
ON
CHECK
ON
CHECK
ON
CHECK
ON
7
5
8
6
ON/EDIT
ON/EDIT
ON/EDIT
ON
ON
ON
ON/EDIT
MUTE
ON/EDIT
MUTE
7
8
M2500—Owner’s Manual
37
The Scene Memory function
Using mute groups
1. In a scene memory number 1–8, store the mute
(off) settings of the channels that you wish to
use as a mute group.
2. Press the UTILITY switch to move to Utility
mode, select the oP (recall operation) item, and
set its value to “
.” (For details on procedure
in Utility mode, refer to page 34.)
Now scene memory numbers 1–8 can be used as
mute groups, and the DIRECT RECALL 1–8 switches
will function as mute group switches.
3. Press and hold the UTILITY switch for one second or more, or repeatedly press the UTILITY
switch to return to Normal mode
4. To turn on a mute group 1–8 (the mute settings
of scene memory numbers 1–8), press the corresponding DIRECT RECALL 1–8 switch.
Mute groups 1–8 that are turned on will be shown by
the indicator of the corresponding DIRECT RECALL
1–8 switch.
5. As desired, press other DIRECT RECALL
switches to add mute groups.
6. To defeat a mute group that is on, press the corresponding DIRECT RECALL switch once
again.
The indicator of the DIRECT RECALL switch will go
dark, and the mute group will be cancelled.
Note:
• Even while using mute groups, you can use the
▲/▼ (or 0–9/ENTER) and RECALL switches
to recall scene memory numbers 9–128. However, the mute settings of mute groups turned
on by the DIRECT RECALL switches will not
be cancelled.
• If you use the 0–9/ENTER and RECALL
switches to recall scene memory numbers 129
(all on) or 130 (all off), the mute settings of the
mute groups selected by the DIRECT RECALL
switches will be cancelled.
38
M2500—Owner’s Manual
About the local control circuit
In the unlikely event that the system of the M2500
experiences a malfunction so that the scene memory
circuit cannot be used, it will automatically switch to
the local control circuit. When the local control circuit is operating, the MEMORY display will go dark,
and it will not be possible to operate the scene memory switches. However, the ON/EDIT switches of the
input channels and output channels will function as
conventional on/off switches, so that you can continue to use the M2500 as a conventional analog
mixer.
Note: If the cause for the malfunction is in the
power supply, it may not be possible to use the
local control circuit either.
Error messages
While the M2500 is being operated or when the
power is turned on, the MEMORY display may show
one of the following error messages. If this occurs,
refer to the corresponding explanation and take
appropriate action.
An error occurred while receiving MIDI
data.
If an error occurs while receiving MIDI
data, this error message will be displayed for several seconds.
The voltage of the internal battery has
fallen below the nominal level (2.5 V), or
has become abnormal.
If the voltage of the internal battery falls
below the nominal value of 2.5 V or if the
battery malfunctions, this error message
will be displayed when the power is
turned on. (When this message is displayed, you can press any switch to
return to the normal state.) If this message appears, immediately contact your
dealer or a Yamaha service center to
have the battery replaced. The voltage of
the internal battery can also be checked
using the Utility mode “
” item (see
page 34).
The memory buffer became full while
transmitting/receiving MIDI data.
If the memory buffer becomes full while
transmitting/receiving MIDI data, this
error message will be displayed for several seconds. If this message appeared
while transmitting MIDI data, turn the
Utility item Eb (MIDI echo back) “
.”
A scene memory store operation was
executed or bulk dump data was
received when memory protect was on.
If you attempt to store a scene memory
or if bulk dump data is received when
memory protect was on, this error message will be displayed for several seconds. For details on memory protect,
refer to page 34.
A check sum error occurred while receiving bulk dump data.
If a check sum error occurs while MIDI
data is being received as a bulk dump,
this error message will be displayed for
several seconds. Check that the MIDI
cable connections and the state of the
transmitting device are appropriate.
You attempted to recall a scene memory
in which no scene had been stored.
If you attempt to recall a scene memory
in which no scene has been stored, this
error message will be displayed for several seconds.
All scene memories contain no data.
This error message will be displayed for
several seconds if, after all scene memories have been erased in Utility mode,
you attempt to store without specifying a
scene memory number.
*
A system error has occurred. (* is the
error number)
If this error message appears, the
M2500 will not operate correctly. Please
contact a Yamaha service center to have
the unit serviced.
M2500—Owner’s Manual
39
Specifications
General specifications
0 dB is referenced to 0.775 Vrms.
Phantom Power
Total Harmonic Distortion
(Master output)
Less than 0.1% (THD+N)
20 Hz–20 kHz @ +14 dB 600 Ω
Frequency Response
(Master Output)
0+1, –3 dB
20 Hz–20 kHz @ +4 dB 600 Ω
Gain control at minimum level
Hum & Noise (20 Hz–20 kHz)*1
Rs= 150 Ω
–128 dB Equivalent Input Noise.
–99 dB Residual Output Noise.
(STEREO OUT, MONO/C OUT,
GROUP/AUX OUT, AUX OUT,
AUX/GROUP OUT)
Input Gain= Max.
Input Pad= OFF
||
Input sensitivity= –60 dB
–64 dB(68 dB S/N) STEREO OUT Master Level control and
one Ch fader at nominal level.
–80 dB(84 dB S/N) STEREO OUT, MONO/C OUT Master fader
at nominal level and all Ch assign SW’s off
and all GROUP to ST SW’s off.
–81 dB(85 dB S/N) GROUP1/AUX7–GROUP8/AUX14 OUT
Master Level control at nominal level and all
Ch assign SW’s off.
GROUP/AUX FLIP SW off.
–75 dB(79 dB S/N) AUX1–6, AUX7/GROUP1–AUX14/GROUP8
OUT Master Level control at nominal level
and all Ch send controls at minimum.
GROUP/AUX FLIP SW off.
–90 dB(94 dB S/N) MATRIX OUT Master level control at nominal level and all Matrix Mix controls at minimum level.
Crosstalk
–70 dB @ 1 kHz
–70 dB @ 1 kH
–50 dB @ 1 kHz
ST CH INPUT Equalization
+15, –15 dB maximum
HIGH
LOW
adjacent inputs.
input to output. (CH INPUT)
input to output. (ST CH INPUT)
26 dB
CH INPUT GAIN control
44 dB
NOM
SIGNAL
ST CH LED Indicators
PEAK
NOM
SIGNAL
variable
ST CH 1B INPUT GAIN control
30 dB
variable
CH INPUT Equalization
+15, –15 dB maximum
HIGH
10 kHz (shelving)
HIGH-MID 400– 8 kHz (peaking)
LOW-MID 80–1.6 kHz (peaking)
LOW
100 Hz (shelving)
M2500—Owner’s Manual
LED(red) built into each ST CH INPUT turns
on when pre-Fader [L+R] level reaches
+17 dB.
LED(yellow) built into each ST CH INPUT
turns on when pre-Fader [L+R] level
reaches 0 dB.
LED(green) built into each ST CH INPUT
turns on when pre-Fader [L+R] level
reaches –13 dB.
Switchable sine wave @ 100 Hz, 1 kHz or
10 kHz, or pink noise.
Scene Memory
Direct Scene Memory recall switches (1–8)
Switchable Scene Memory recall (1–128)
VU Meters
11 illuminated meters
(0VU= +4 dB output @ 600Ω load)
#1 ; GROUP1/AUX7•AUX1•AUX7/GROUP1•MATRIX1
#2 ; GROUP2/AUX8•AUX2•AUX8/GROUP2•MATRIX2
#3 ; GROUP3/AUX9•AUX3•AUX9/GROUP3•MATRIX3
#4 ; GROUP4/AUX10•AUX4•AUX10/GROUP4•MATRIX4
#5 ; GROUP5/AUX11•AUX5•AUX11/GROUP5•MATRIX5
#6 ; GROUP6/AUX12•AUX6•AUX12/GROUP6•MATRIX6
#7 ; GROUP7/AUX13•NONE•AUX13/GROUP7•MATRIX7
#8 ; GROUP8/AUX14•NONE•AUX14/GROUP8•MATRIX8
#9 ; STEREO L•PFL/AFL L
#10 ; MONO/C
#11 ; STEREO R•PFL/AFL R
VU Meter Peak Indicators
LED(red) built into each VU meter turns on
when output signal is above the level 3 dB
lower than clipping level.
Dimension
265 mm
875 mm (except rear connectors)
2385 mm(56C), 2142 mm(48C),
1899 mm(40C), 1642 mm(32),
1400 mm(24)
Weight
CH INPUT High Pass Filter 18 dB/octave
roll-off below 80 Hz at –3 dB point.
LED(red) built into each CH INPUT turns on
when pre-Fader level reaches +17 dB.
LED(yellow) built into each CH INPUT turns
on when pre-Fader level reaches 0 dB.
LED(green) built into each CH INPUT turns
on when pre-Fader level reaches –13 dB.
Oscillator/Noise
variable
ST CH 1A, 2–4 INPUT GAIN control
40 dB
40
+48 VDC is applied to balanced inputs (via
6.8 kΩ current-limiting/isolation resistors) for
powering condenser microphones; may be
turned ON or OFF via rear-panel phantom
Master switch.
When Master is ON, individual channels
may be turned ON or OFF via +48V
switches (with red LED) on each input channel.
CH LED Indicators
PEAK
Maximum Voltage Gain
GROUP/AUX FLIP SW= off
60 dB
CH INPUT to CH INSERT OUT
84 dB
CH INPUT to GROUP1/AUX7–GROUP8/
AUX14 OUT
80 dB
CH INPUT to AUX1, 2 OUT(Pre Fader)
90 dB
CH INPUT to AUX3–6, AUX7/GROUP1–
AUX14/GROUP8 OUT(Post Fader)
84 dB
CH INPUT to STEREO OUT(CH to ST)
70 dB
CH INPUT to MONITOR OUT(PFL)
CH INPUT PAD SW
10 kHz (shelving)
100 Hz (shelving)
Heigt
Depth
Width
102kg(56C), 93kg(48C), 84kg(40C),
71kg(32), 62kg(24)
*1 Hum & Noise are measured with a 6 dB/octave filter @ 12.7 kHz;
equivalent to a 20 kHz filter with infinite dB/octave attenuation.
For European Model
Purchaser/User information specified in EN55103-1 and EN55103-2.
Conformed Enviroment: E1, E2, E3 and E4.
Specifications
Input/output characteristics
Input specifications
Connection
PAD
Gain
Trim
Actual Load
Impedance
For Use With
Nominal
3 kΩ
50–600 Ω Mics
&
600 Ω Lines
0
–60
26
CH INPUT
(1–n) *8
0
–16
26
ST CH 1A INPUT
[L, R]
–30
+10
–20
ST CH 1B INPUT
[L, R]
+10
ST CH INPUT
[L, R] (2–4)
+10
–30
TALKBACK IN
MATRIX SUB IN [L, R]
STEREO [L, R] MONO/C SUB IN
5 kΩ
600 Ω Lines
10 kΩ
600 Ω Lines
5 kΩ
600 Ω Lines
10 kΩ
50–600 Ω Mics
10 kΩ
600 Ω Lines
*1
*2
*3
*4
*5
*6
*7
*8
*9
Connector In
Mixer
Sensitivity *9
Nominal
Max before Clip
–80 dB(0.078 mV)
–60 dB(0.775 mV)
–40 dB(7.75 mV)
–54 dB(1.55 mV)
–34 dB(15.5 mV)
–14 dB(155 mV)
–36 dB(12.3 mV)
–16 dB(123 mV)
+4 dB(1.23 V)
–10 dB(245 mV)
+10 dB(2.45 V)
+30 dB(24.5 V)
–50 dB(2.45 mV)
–30 dB(24.5 mV)
–10 dB(245 mV)
–10 dB(245 mV)
+10 dB(2.45 V)
+30 dB(24.5 V)
–40 dB(7.75 mV)
–20 dB(77.5 mV)
0 dB(0.775 V)
–10 dB(245 mV)
+10 dB(2.45 V)
+30 dB(24.5 V)
–50 dB(2.45 mV)
–30 dB(24.5 mV)
–10 dB(245 mV)
–10 dB(245 mV)
+10 dB(2.45 V)
+30 dB(24.5 V)
–66 dB(0.388 mV)
–50 dB(2.45 mV)
–20 dB(77.5 mV)
+4 dB(1.23 V)
+24 dB(12.3 V)
Phone Jack(TRS) *6
0 dB(0.775 V)
+20 dB(7.75 V)
Phone Jack(TRS) *7
XLR-3-31 type *2
Phono Jack *3
Phone Jack(TRS) *4
XLR-3-31 type *5
–2 dB(0.616 V)
–6 dB(388 mV)
–26 dB(38.8 mV)
CH INSERT IN (1–n) *8
STEREO [L, R] MONO/C INSERT IN
GRP/AUX INSERT IN (1/7–8/14)
AUX INSERT IN (1–6)
Input Level *1
10 kΩ
600 Ω Lines
–10 dB(245 mV)
0 dB=0.775 Vrms.
Balanced.
Unbalanced.
Balanced (T=HOT, R=COLD, S=GND).
Unbalanced.
Unbalanced (T=SIGNAL, R=GND, S=GND).
Unbalanced (T=OUTPUT, R=INPUT, S=GND).
n=56, 48, 40, 32 or 24
Sensitivity is the lowest level that will produce an output of +4 dB(1.23 V), or the nominal output level when the unit is set to maximum level.
Output specifications
Actual Source
Impedance
For Use With
Nominal
STEREO OUT [L, R]
MONO/C OUT
GRP/AUX OUT (1/7–8/14)
AUX/GRP OUT (7/1–14/8)
AUX OUT (1–6)
MONITOR OUT [L, R, MONO/C]
MATRIX OUT (1–8)
150 Ω
CH INSERT OUT (1–n) *5
STEREO INSERT OUT [L, R]
MONO/C INSERT OUT
GRP/AUX INSERT OUT (1/7–8/14)
AUX INSERT IN (1–6)
600 Ω
PHONES OUT [L, R]
100 Ω
Connection
*1
*2
*3
*4
*5
Output Level *1
Connector In Mixer
Nominal
Max before Clip
600 Ω Lines
+4 dB(1.23 V)
+24 dB(12.3 V)
XLR-3-32 type *2
10 kΩ Lines
0 dB(0.775 V)
+20 dB(7.75 V)
Phone Jack(TRS) *3
8 Ω Phones
10 mW
20 mW
40 Ω Phones
30 mW
75 mW
Stereo Phone Jack *4
0 dB=0.775 Vrms.
Balanced.
Unbalanced (T=OUTPUT, R=INPUT, S=GND).
Unbalanced.
n=56, 48, 40, 32 or 24
M2500—Owner’s Manual
41
Specifications
Other
Connector wiring
Pin No.
Signal name
1
Power supply remote
2
+15 V
3
±15 V GND
4
+48 V GND
5
–15 V
6
+12 V
7
+12 V GND / power supply remote
8
Power supply remote
9
+48 V
10
FRAME GND
Included items
Power supply connection cable (3 m, 10 pin)
42
M2500—Owner’s Manual
3
7
2
6
10
1
5
9
4
8
Dimensions
Front
Side
265
23
270
875
270
137
242
1400: M2500-24
1642: M2500-32
1899: M2500-40C
2142: M2500-48C
2385: M2500-56C
Rear
422
792
88
M2500-24
55
597
597
422
55
792
331
M2500-32
55
154
768
55
847
718
718
792
55
88
M2500-40C
399
847
768
55
792
88
M2500-48C
55
968
399
968
768
55
792
331
M2500-56C
55
740
700
740
55
Units: mm
M2500—Owner’s Manual
43
MIDI data format
1. MIDI Channel
The same channel is used for transmission and reception. Select from channel numbers 1–16.
2. MIDI Program Change
Program change numbers (0–127) correspond to
scene memory numbers 1–128. This correspondence
cannot be changed. However, when Mute Groups are
used, program change numbers 0–7 cannot be transmitted or received. (Since memory numbers 1–8 ≠
program change numbers 0–7.)
In the case of Omni [on], program changes of all
MIDI channels are received.
Transmission and reception are switchable [LoC/on/
oFF]. When [LoC/on] are selected, program changes
can be received/transmitted. When [LoC] is selected,
program change messages can be transmitted to control an external MIDI device even when a <no data>
recall operation occurs.
5. Bulk Out, Bulk Dump Request
The following bulk data can be transmitted and
received.
(1) SCENE MEMORY No. BULK OUT FORMAT
STATUS
ID No.
SUB STATUS
FORMAT No.
BYTE COUNT(HIGH)
BYTE COUNT(LOW)
DATA NAME
DATA STATUS
DATA
CHECK SUM
3. MIDI Control Change
Control changes correspond to the ON/EDIT switch
and the DIRECT RECALL switches. This correspondence cannot be changed. However, control change
numbers 105–112 correspond to DIRECT RECALL
1–8 switches only when Mute Groups are being used.
Transmission and reception are switchable [on/GrP/
oFF]. When [GrP] is selected, only those control
change messages that correspond to mute groups are
transmitted or received..
MIDI Control
Change No.
1–48
CH INPUT(1–48)
49–52
ST CH INPUT(1–4)
53–60
CH INPUT(49–56)
61–68
GROUP/AUX(1–8) OUT
69
STEREO OUT
70
MONO/C OUT
105–112
DIRECT RECALL(1–8)
= MUTE GROUP(1–8)
The Echo Back function is switchable [on/oFF].
However if the internal transmission buffer becomes
full while echoing back a long exclusive messages,
echo back will be halted, and the internal data will be
transmitted.
M2500—Owner’s Manual
F0h
43h
0nh
7Eh
00h
27h
4Ch
4Dh
20h
20h
38h
42h
33h
31h
4Dh
mmh
0nh
d01
System Exclusive Message
Manufacturer's ID No.(YAMAHA)
n=0~15(MIDI Channel)
Universal Bulk Dump
39(29+10)bytes
'L'
'M'
' '
' '
'8'
'B'
'3'
'1'
'M'
mm=0~127(MEMORY No.)
n=0:no data, n=f:valid data.
ON/OFF DATA assigned Control
Change 4~1
: :
0000xxxx d28 ON/OFF DATA assigned Control
Change 112~109
0xxxxxxx eeh
ee=(INVERT('L'+'M'+...+d01+...+d28)+1)
AND 7Fh
11110111 F7h End Of Exclusive
(2) SCENE MEMORY No. BULK REQUEST
FORMAT
STATUS
ID No.
SUB STATUS
FORMAT No.
ON/EDIT switch Assign
4. MIDI Echo Back
44
EOX
11110000
01000011
0000xxxx
01111110
00000000
00100111
01001100
01001101
00100000
00100000
00111000
01000010
00110011
00110001
01001101
0xxxxxxx
0000xxxx
0000xxxx
DATA NAME
EOX
11110000
01000011
0010xxxx
01111110
01001100
01001101
00100000
00100000
00111000
01000010
00110011
00110001
01001101
0xxxxxxx
11110111
F0h
43h
2nh
7Eh
4Ch
4Dh
20h
20h
38h
42h
33h
31h
4Dh
mmh
F7h
System Exclusive Message
Manufacturer's ID No.(YAMAHA)
n=0~15(MIDI Channel)
Universal Bulk Dump
'L'
'M'
' '
' '
'8'
'B'
'3'
'1'
'M'
mm=0~127(MEMORY No.)
End Of Exclusive
MIDI Implementation Chart
YAMAHA [MIXING CONSOLE]
Model : M2500
MIDI Implementation Chart
MIDI Implementation
Transmitted
Chart Function...
Date:July/20, 1999
Version : 1.0
Recognized
Remarks
Basic
Channel
Default
Changed
1 - 16
1 - 16
1 - 16
1 - 16
Memorized
Default
Messages
Altered
x
x
**************
OMNI off/OMNI on
x
x
Memorized
Mode
True voice
x
**************
x
x
Velocity
Note ON
Note OFF
x
x
x
x
After
Touch
Key's
Ch's
x
x
x
x
x
x
o
o
o
o
o
o
o
o
o 0 - 127
**************
o 0 - 127
1 - 128
System Exclusive
o
o
System
:
Common :
:
Song Pos
Song Sel
Tune
x
x
x
x
x
x
System
:
Real Time :
Clock
Commands
x
x
x
x
:
Aux
:
Messages :
:
Local ON/OFF
All Notes OFF
Active Sense
Reset
x
x
x
x
x
x
o
x
Note
Number :
Pitch Bend
Control
Change
Prog
Change :
*1
1-70, 105-112
True #
Notes
*1 : See Control Change chart.
*2 : Bulk Dump/Request
Mode 1 : OMNI ON, POLY
Mode 3 : OMNI OFF, POLY
Mode 2 : OMNI ON, MONO
Mode 4 : OMNI OFF, MONO
*2
o : Yes
x : No
M2500—Owner’s Manual
45
YAMAHA CORPORATION
V443030 R0 1 IP 148
NP Printed in Taiwan
Pro Audio Division, #18/3
P.O. Box 3, Hamamatsu, 430-8651, Japan