LITMA6C8 Multi III (Rev. 0)
MULTI 3
Splitter + Mixer
Owner’s Manual
SPLIT
CLIP
1
MUTE
0
CLIP
2
MUTE
0
CLIP
3
MUTE
0
CLIP
4
MUTE
0
-∞
+15
LEVEL
INPUT
-∞
+15
INPUT
LEVEL
-∞
+15
LEVEL
CHANNEL A
INPUT
POWER
MONO STEREO CLIP
MODE
SPLIT
INPUT
MIX
CLIP STEREO MONO
MULTI 3
-∞
+15
LEVEL
0
10
MASTER
MIX A
MIX
5
MUTE
0
CLIP
6
MUTE
0
CLIP
7
MUTE
0
CLIP
8
MUTE
0
CLIP
STEREO
MONO
INPUT
-∞
+15
LEVEL
INPUT
-∞
+15
INPUT
LEVEL
-∞
+15
LEVEL
CHANNEL B
INPUT
-∞
+15
LEVEL
0
10
MASTER
MIX B
Contents
Page No.
• Introduction ----------------------------------------------------------------------------------------------------------- 2
• Panel Artwork -------------------------------------------------------------------------------------------------------- 3
• Front Panel
• Rear Panel
• Ground / float point setting
• Panel Description
• Front panel -------------------------------------------------------------------------------------------------- 4
• Rear Panel --------------------------------------------------------------------------------------------------- 5
• Features ---------------------------------------------------------------------------------------------------------------- 6
• Setup
• Mode 1 [Stereo Splitter] ----------------------------------------------------------------------------------- 7
• Mode 2 [Mono Splitter] ----------------------------------------------------------------------------------- 8
• Mode 3 [Stereo Mixer] ------------------------------------------------------------------------------------ 9
• Mode 4 [Mono Mixer] ------------------------------------------------------------------------------------- 10
• Technical Specification ---------------------------------------------------------------------------------------------- 11
MULTI 3
OPERATOR MANUAL
The Multi 3 is a Splitter cum mixer, Please read this manual in full before using.
This guide contains important safety information, operational instructions and service information.
Unpacking your MULTI 3
Remove the Multi 3 from the packing, and warranty card. Keep the packing in the eventuality that your Multi 3
needs to be moved or returned for service or repair. Complete & return your Warranty card. Returning the completed
warranty card does not diminish your statutory rights in any way.
Operating Voltages
Before plugging in the Multi 3 ensure the correct mains AC voltage 150V-250V, 50Hz.
Safety Information
Do not use your Multi 3 in environments having a very high humidity or where liquids may accidentally enter the
unit. When powering up the system, switch on Power Amplifiers last, this will avoid any unexpected loudspeaker
thumps. The Multi 3 has an internal power supply, it is normal for the unit to get warm under operating conditions.
In the event then AC fuse blows, replace it only with the same type and rating [see spec]. If a fault occurs that
replacing the fuse does not cure, return the Multi 3 to your dealer or to an authorised service agency. Do not attempt
to repair the Multi 3 yourself, as this could be dangerous and will avoid the warranty.
AC Connections
1. Use only supplied AC Cord suitable for your power supply.
2. AC Fuse T500mA / 250V
If the Fuse blows. Replace it only with the same type and rating. See Technical Spec.
2
MULTI 3
1
INPUT
10
+15
2
LEVEL
-∞
15
INPUT
2
+15
3
CHANNEL A
INPUT
CLIP
3
16
MIX-B OUTPUT
LEVEL
-∞
MUTE
0
+15
8
INPUT
CLIP
4
+15
7
OUTPUT B
LEVEL
-∞
MUTE
0
6
MIX
SPLIT
MODE
6
MIX
7
MONO
STEREO
INPUT
MONO STEREO CLIP
5
+15
LEVEL
-∞
MUTE
0
5
CH-9 CH-7
GND
CH-10 CH-8 CH-6
FLOAT
18
19
INPUT B
REAR PANEL
SPLIT
10 11
INPUT
CLIP
+15
LEVEL
-∞
MUTE
0
MIX-A OUTPUT
6
INPUT
CLIP
7
CHANNEL B
+15
4
LEVEL
-∞
MUTE
0
FLOAT POSITION
GROUND POSITION
GND
GND
CH-4 CH-2
FLOAT
CH-9 CH-7
8
3
LEVEL
+15
MUTE
0
-∞
OUTPUT A
INPUT
CLIP
FLOAT
CH-5 CH-3 CH-1
(FACTORY SETTING : GROUND POSITION)
GROUND / FLOAT DIP SWITCH SETTING
17
3
0
10
MASTER
MIX A
CH-10 CH-8 CH-6
LEVEL
-∞
MUTE
0
CLIP STEREO MONO
CLIP
MUTE
0
1
CLIP
230V~50Hz,
FUSE:T500mA/250V
9
8
5
4
FRONT PANEL
2
MIX B
0
10
MASTER
CLIP
1
CH-4 CH-2
GND
CH-5 CH-3 CH-1
FLOAT
13
POWER
12
INPUT A
OPERATOR MANUAL
MULTI 3
MULTI 3
OPERATOR MANUAL
PANEL DESCRIPTIONS
FRONT PANEL
1. SIGNAL INPUT JACK [1]
This jack accept connection of line level instruments.
2. GAIN CONTROL KNOB [2]
This knob is used for adjusting the output level of individual channel output.
3. LEVEL CONTROL KNOB [3]
This knob is used for adjusting the input level of mix input signal.
4. CLIP LED [4]
This indicate the clip level of its respective channel.
5. MUTE SWITCH [5]
This switch is used for muting respective input signal. It is a self illuminated switch.
6. MODE SELECTOR SWITCH [6-7]
This switch selects the 4 mode of operation of this unit. This switch setting is important and decides in which
mode your Multi 3 will operate.
• Stereo Split Mode
• Mono Split Mode
• Stereo Mix Mode
• Mono Mix Mode
7. POWER SWITCH [13]
Press to switch on the unit. Press it again to switch off. When turned on, the power on LED light up.
8. POWER ON LED [12]
This LED indicate the power on status of the unit.
9. MODE LED [8-11]
This indicates the present mode of operation.
• Stereo Split - Orange LED [8]
• Mono Split - Red LED [9]
• Stereo Mix - Orange LED [11]
• Mono Mix - Red LED [10]
4
MULTI 3
OPERATOR MANUAL
REAR PANEL
10. OUTPUT MALE XLR [16]
This is used for connecting to the MIXER input. This output is stereo servo balanced electronic type hence can
be used to connect to unbalanced or balanced input of MIXER or any other suitable line level equipment.
11. OUTPUT JACK [17]
This is used for connecting to the MIXER input jack. This output is stereo servo balanced electronic type hence
can be used to connect to unbalanced or balanced input of MIXER or any other suitable line level equipment.
12. MAINS INLET [15]
This inlet accepts the main cord for connecting to AC mains outlet AC 150V-250V, 50Hz.
13. MIX INPUT FEMALE XLR [19]
This female XLR accepts the signal to mix input A & B through XLR connector.
14. DIP SWITCH [18]
This switch position determines the output ground connection is in grounded or float condition. You can
individually set the GND / FLOAT connection to your suitability by selecting corresponding DIP switch. This is
avoid ground loops.
15. EARTH CONNECTOR [14]
This is used to earth the unit.
5
MULTI 3
OPERATOR MANUAL
FEATURES
• 10 balanced Inputs + 10 balanced Outputs.
• Each channel is provided with MUTE switch (except Mix A & Mix B) and level control.
• Clip led on all inputs.
• MIX A & MIX B are XLR balanced inputs.
• All channels are 1/4'” stereo jack balance inputs.
• Ch1, Ch2, Ch5 & Ch6 outputs are 1/4'” stereo jack & Ch3, Ch4, Ch7 & Ch8 outputs are XLR connectors with
servo balance output stage.
• Each channel is provided with 15dB gain.
• Basic 4 modes - Stereo Mix, Mono Mix, Stereo Split & Mono Split.
• Stereo Mix – 2 X (4 IN / Mix Out + 4 Individual Channel out).
• Mono Mix – 8 IN / 2 Mix Out + 8 Individual Channel out.
• Stereo Split – 2 IN / 10 Out
• Mono Split – 1 IN / 10 Out.
• Self illuminated switches.
• High dynamic range.
• Operates on vide supply voltage variation150V-250V AC.
6
MULTI 3
OPERATOR MANUAL
SET UP
The MULTI 3 is a versatile splitter / mixer / direct injection unit.
MODE 1 - STEREO SPLITTER
STEREO SPLIT
CLIP
MIX A
OUTPUT
MIX A
INPUT
CLIP
OUTPUT 1
MUTE
GAIN
15dB
CLIP
OUTPUT 4
MUTE
GAIN
15dB
MIX B
INPUT
CLIP
MIX B
OUTPUT
CLIP
OUTPUT 5
MUTE
GAIN
15dB
CLIP
OUTPUT 8
MUTE
GAIN 15dB
INPUT
MIX A
MIX B
OUTPUT MIX A OUTPUT, OUTPUT 1-4 MIX B OUTPUT, OUTPUT 5-8
• DO NOT POWER THE UNIT AS YET.
• Connect the input signal to input 'A'/ 'B' on the back panel
• Connect Output 1-4 / Output 5-8 as well as MIX A and MIX B output to the appropriate line level units
e.g. amplifier.
• On the front panel, please make the following settings:
1. Keep all individual channel control at ‘12 o’clock’ position Mix control to ‘clockwise’.
2. Release all switches
3. LED 8 will light up as Orange & LED’s 9, 10, 11 will be off.
• POWER UP YOUR SYSTEM NOW.
The recommended sequence is : First MIXER/signal source, Second MULTI 3, Last your MIXER/
PROCESSORS, etc.
• Feed a signal into I/p A/B and adjust all the outputs to 0dB levels.
• Adjust the respective channel gain control to control the amount of signal in the split. Reduce the gain if the peak
LED lights. (Output 1 to 8)
• Adjust the output levels as desired. Reduce the output gain if the peak LED lights. (MIX A-B Output)
7
MULTI 3
OPERATOR MANUAL
MODE 2 - MONO SPLITTER
MONO SPLIT
CLIP
MIX A
OUTPUT
MIX A
INPUT
CLIP
MIX B
OUTPUT
CLIP
OUTPUT 1
MUTE
GAIN
15dB
CLIP
OUTPUT 8
MUTE
GAIN
15dB
INPUT
OUTPUT
MIX A
MIX A OUTPUT, MIX B OUTPUT, OUTPUT 1-8
• DO NOT POWER THE UNIT AS YET.
• Connect the input signal to input A on the back panel.
• Output 1-8 as well as MIX A & MIX B can be connected to the appropriate setups.
• On the front panel, please make the following settings:
1. Keep all individual channel control at ‘12 o’clock’ position Mix control to ‘clockwise’.
2. Depress the switch SW1 & press switch SW2.
3. LED 9 will light up as Red, LED's 8, 10 & 11 will be off.
• POWER UP YOUR SYSTEM NOW.
• The recommended sequence is : First MIXER/signal source, Second MULTI 3, Last your MIXER/
PROCESSORS, etc.
• Feed a signal into i/p A and adjust all the outputs to 0dB levels.
• Adjust the respective channel gain control to control the amount of signal in the split. Reduce the gain if the peak
LED lights.
• Adjust the output levels as desired. Reduce the output gain if the peak LED lights.
8
MULTI 3
OPERATOR MANUAL
MODE 3 - STEREO MIXER
STEREO MIX
CLIP
MIX A
INPUT
MIX A
OUTPUT
CLIP
INPUT 1
OUTPUT 1
MUTE
GAIN
15dB
INPUT 4
CLIP
OUTPUT 4
MUTE
GAIN 15dB
CLIP
MIX B
OUTPUT
MIX B
INPUT
CLIP
INPUT 5
OUTPUT 5
MUTE
GAIN
15dB
INPUT 8
CLIP
OUTPUT 8
MUTE
GAIN 15dB
INPUT
MIX A
MIX B
INPUT-1
INPUT-4
INPUT-5
INPUT-8
OUTPUT
MIX A O/P
MIX B O/P
MIX A O/P
OUTPUT-1
MIX A O/P
OUTPUT-4
MIX B O/P
OUTPUT-5
MIX B O/P
OUTPUT-8
• DO NOT POWER THE UNIT AS YET.
• Connect the input signals to input 1-4 / input 5-8 on the front panel jack 1-8.
• Connect output A/B to the appropriate setup.
• On the front panel, please make the following settings.
1. Keep all individual channel control at ‘12 o’clock’ position Mix control to ‘clockwise’.
2. Press switch SW1 Release switch SW2.
3. LED 10 will light up as orange & LED’s 8, 9 & 11 will be off.
• POWER UP YOUR SYSTEM NOW.
The recommended sequence is : First MIXER / signal source, Second MULTI 3, Last your MIXER/
PROCESSORS, etc.
• Feed in the input signals and adjust the master output to 0dB level.
• Adjust the respective channel gain control to control the amount of signal in the mix. Reduce the gain if the peak
LED lights.
• Adjust the output levels as desired. Reduce the output gain if the peak LED lights.
• Also direct output is available on output 1 to 8.
9
MULTI 3
OPERATOR MANUAL
MODE 4 - MONO MIXER
MONO MIX
MIX A
INPUT
CLIP
MIX A
OUTPUT
MIX B
INPUT
CLIP
MIX B
OUTPUT
CLIP
INPUT 1
OUTPUT 1
MUTE
GAIN
15dB
CLIP
INPUT 8
OUTPUT 8
MUTE
GAIN
15dB
INPUT
OUTPUT
MIX A
MIX A O/P + MIX B O/P
MIX B
INPUT-1
INPUT-8
MIX B O/P + MIX A O/P
MIX A O/P
MIX B O/P
OUTPUT-1
MIX A O/P
MIX B O/P
OUTPUT-8
• DO NOT POWER THE UNIT AS YET.
• Connect the input signals to input 1-4 / input 5-8 on the front panel.
• Connect Output 1-4 / Output 5-8 as well as MIX A & MIX B output can be connected to the appropriate setup.
• On the front panel, please make the following settings:
1. Keep all individual channel control at ‘12 o’clock’ position Mix control to ‘clockwise’.
2. Switches SW1 & SW2 are pressed.
3. LED 11 will light up as Red & LED's 8, 9 & 10 are off.
• POWER UP YOUR SYSTEM NOW.
• The recommended sequence is : First MIXER/signal source, Second MULTI 3, Last your MIXER/
PROCESSORS, etc.
• Feed a signal into i/p A and adjust all the outputs to 0dB levels.
• Adjust the respective channel gain controls to control the amount of signals to the channel boosters. Reduce the
gain if the peak LED lights.
10
MULTI 3
OPERATOR MANUAL
TECHNICAL SPECIFICATIONS
MODES OF OPERATION :
MODE 1
:
Stereo Mix
MODE 2
:
Mono Mix
MODE 3
:
Stereo Split
MODE 4
:
Mono Split
INPUTS
:
All Electronic Balanced.
IMPEDANCE
:
> 20 K W
HEADROOM
:
≥ 20 dB (At 0dBu Nominal Input)
INPUT A/B
:
On both XLR (Female) and 6.3mm Stereo Jack Socket on Rear Panel.
INPUT 1 TO 8
:
On 6.3mm Stereo Jack Sockets on Front Panel.
MUTE SWITCH
:
With self illuminated Led indication.
LEVEL CONTROL
:
For each of the Input on Front Panel with 15dB Reserve Gain Except Input A &
Input B.
OUTPUTS
IMPEDANCE
:
< 50 W.
OUTPUT LEVEL
:
0dBu ( Nominal)
MAXIMUM OUTPUT LEVEL :
+21 dBu
DYNAMIC RANGE
:
> 115 dB
FREQUENCY RESPONSE
:
20Hz – 20KHz + 0.5 dB
DISTORTION (THD+N) %
:
< 0.01 % (20Hz – 20 KHz )
S/N RATIO
:
> 90 dBr 22Hz –22KHz UNWT. RMS.1
(0dBr = 0dBu OUTPUT )
INTER CHANNEL CROSS TALK
:
88dB (Mix Mode)
AC CONSUMPTION
:
150V-240V V AC 50Hz 15 VA. MAX.
FUSE RATING
:
T500mA/250V
MECHANICAL DIMENSION (L X B X H) :
482 MM X 120 MM X 44.2 MM
1U 19” Rack Mountable.
WEIGHT ( UNPACKED )
:
2.10 KG
11
MULTI 3
OPERATOR MANUAL
NOTES
A1/A2, Giriraj Industrial Estate,
Mahakali Caves Road, Andheri (East),
Mumbai-400 093. India
Tel.: +91-22-66916232 / 33, 30880743,
30880776, 26870268 Fax: 26871453
Email: ap@audioplus-india.com
Studiomaster professional reserves the right to make modifications to its
products without notice
LITMA6C8 Rev. 0
PRODUCT OF AUDIOPLUS
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