Audio Systems
M8
35W x 8 Channel Power Amplifier
Installation & User Guide
SAFETY INSTRUCTIONS
CAUTION
RISK OF ELECTRIC SHOCK
DO NOT OPEN
CAUTION: To reduce the risk of electric shock,
do not remove cover, (or back).
No user serviceable parts inside.
Refer servicing to qualified service personnel.
The lightning flash with arrowhead symbol, when in an equilateral triangle,
is intended to alert the user to the presence of in-insulated
"dangerous voltage" within the product's enclosure that may be of
sufficient magnitude to constitute a risk of electric shock to persons.
The exclamation point, within an equilateral triangle, is intended to alert
the user to the presence of important operating and maintenance (servicing) instructions in the literature accompanying
the appliance.
APPLICABLE FOR USA, CANADA OR
WHERE APPROVED FOR USAGE
CAUTION: TO PREVENT ELECTRIC SHOCK,
MATCH WIDE BLADE PLUG TO WIDE SLOT,
INSERT FULLY
ATTENTION: POUR EVITIER LES CHOCS
ELECTRIQUES, INTRODUIRE LA LAME LA PLUS
LARGE DE LA FICHE DANS LA BORNE
CORRESPONDANTE DE LA PRISE ET POUSSER
JUSQU AU FOND
Read all of these instructions before operating and save instructions for later use.
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Read Instructions – All the safety and operating instructions should be read before the appliance is operated.
Retain Instructions – The safety and operating instructions should be retained for future reference.
Heed Warnings – All warnings on the appliance and in the instructions should be adhered to.
Follow Instructions – All operating and use instructions should be followed.
Water and Moisture – The appliance should not be used near water – for example, near a bathtub, washbowl, kitchen sink, laundry tub, in a wet basement or near a swimming
pool.
PORTABLE CART
WARNING
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Carts and Stands – The appliance should be used only with a cart or stand that is recommended by the manufacturer. An appliance and cart combination should be moved with
care. Quick stops, excessive force, and uneven surfaces may cause the appliance and cart combination to overturn.
Wall or Ceiling Mounting – The appliance should be mounted to a wall or ceiling only as recommended by the manufacturer.
Ventilation – The appliance should be situated so that its location or position does not interfere with its proper ventilation. For example, the appliance should not be situated on a
bed, sofa, rug, or similar surface that may block the ventilation openings; or, placed in a built-in installation, such as a bookcase or cabinet that may impede the flow of air through
the ventilation openings.
Heat – The appliance should be situated away from heat sources such as radiators, heat registers, stoves, or other appliances (including amplifiers) that produce heat.
Power Sources – The appliance should be connected to a power supply only of the type described in the operating instructions or as marked on the appliance.
Grounding or Polarization – Precautions should be taken so that the grounding or polarization means of an appliance is not defeated.
Power-Cord Protection – Power-supply cords should be routed so that they are not likely to be walked on or pinched by items placed upon or against them, paying particular attention
to cords at plugs, convenience receptacles, and at the point where they exit from the appliance.
Cleaning – The appliance should be cleaned only as recommended by the manufacturer.
Power Lines – An outdoor antenna should be located away from the power lines.
Nonuse Periods – The power cord of the appliance should be unplugged from the outlet when left unused for a long period of time.
Object and Liquid Entry – Care should be taken so that objects do not fall and liquids are not spilled into the enclosure through openings.
Damage Requiring Service – The appliance should be serviced by qualified service personnel when:
A. The power-supply cord or the plug has been damage; or
B. Objects have fallen, or liquid has spilled into the appliance; or
C. The appliance has been exposed to rain; or
D. The appliance does not appear to operate normally or exhibits a marked change in performance; or
E. The appliance has been dropped or the enclosure damaged.
Servicing – The user should not attempt to service the appliance beyond that described in the operating instructions. All other servicing should be referred to qualified service
personnel.
2
TABLE OF CONTENTS
SAFETY INSTRUCTIONS ............................................................................................................................................................ 2
TABLE OF CONTENTS ................................................................................................................................................................. 3
INTRODUCTION ......................................................................................................................................................................... 4
WHAT’S INCLUDED ..................................................................................................................................................................... 5
M8 FEATURES ............................................................................................................................................................................. 5
FRONT PANEL ........................................................................................................................................................................................................................ 6
REAR PANEL............................................................................................................................................................................................................................ 7
INSTALLATION ............................................................................................................................................................. 9
AIR FLOW................................................................................................................................................................................................................................. 9
SPEAKER PLACEMENT.......................................................................................................................................................................................................10
WIRE REQUIREMENTS .......................................................................................................................................................................................................11
SPEAKER CONNECTIONS ........................................................................................................................................... 12
NORMAL MODE SPEAKER CONNECTIONS ................................................................................................................................................................12
BRIDGED MODE SPEAKER CONNECTIONS ................................................................................................................................................................13
CONNECTIONS & SETUP ............................................................................................................................................ 14
AUDIO CONNECTIONS .....................................................................................................................................................................................................14
Line IN ...............................................................................................................................................................................................................................14
BUS IN/BUS LOOP .........................................................................................................................................................................................................14
AUX IN ...............................................................................................................................................................................................................................15
BRIDGED MODE CONNECTIONS...............................................................................................................................................................................16
POWER ON/OFF MODES ..................................................................................................................................................................................................17
Manual Power .................................................................................................................................................................................................................17
Audio Sensing (Auto On) ............................................................................................................................................................................................17
Voltage Sensing (Trigger) ...........................................................................................................................................................................................17
Control Out ......................................................................................................................................................................................................................18
AC Power Cord ................................................................................................................................................................................................................18
LEVEL CONTROL .................................................................................................................................................................................................................19
SYSTEM APPLICATIONS............................................................................................................................................. 20
Multiroom .............................................................................................................................................................................................................................21
Home Theater Plus Second Zone .................................................................................................................................................................................23
Multizone Mixed Use ........................................................................................................................................................................................................25
TROUBLESHOOTING .................................................................................................................................................. 26
SPECIFICATIONS ........................................................................................................................................................ 27
LIMITED 2-YEAR WARRANTY..................................................................................................................................... 28
NOTES ........................................................................................................................................................................ 29
3
INTRODUCTION
Congratulations and thank you for purchasing the Proficient Audio M8 Eight Channel Power Amplifier.
The M8 combines the best of styling and performance in a truly versatile amplifier that can handle just about
any multiroom audio application.
With selectable Line, BUS and AUX inputs, the M8 can simultaneously output multiple audio sources. Each
channel features a Channel Input switch that selects the audio input to that channel. The Line inputs allow
amplification of up to eight mono or four stereo sources for discreet playback in multizone applications.
The BUS inputs can each feed an audio source to any of the eight channels allowing optional distribution
of mono and/or stereo sources to multiple rooms. The AUX left and right inputs are fed to the respective
left and right output channels for distribution of two mono sources to up to four rooms each or one stereo
source to four rooms.
For very large systems, the BUS LOOP can be used to connect up to four additional M8s for a total of up to
twenty rooms of amplified audio.
Output configuration as eight mono, four stereo, two high power stereo output channels, and some combinations of the three adds even more flexibility to M8 applications. The M8s audio channels can be configured for normal power output for up to eight mono or four stereo channels. The amplifier channels are also
bridgeable, allowing two amplifier channels to be combined as one for high power output applications for
use in large rooms or when using high power speakers that require additional power.
Optional audio and voltage sensing capabilities automatically turn the M8 ON and OFF with the rest of the
system. Simply turn on the A/V Receiver, play a source and music automatically plays throughout the entire
house.
The M8 is more than a solid performer, it looks good too. The cast aluminum Front Panel is like no other and
makes an impressive addition to any stack of gear.
Fully Featured. Solid Performer. Great Looking. Home entertainment never looked and sounded this good.
Please read and follow the instructions in this guide to assist in proper installation connection and use of the
Proficient M8 Eight Channel Power Amplifier.
4
M8 FEATURES
WHAT’S INCLUDED
1 - M8 Eight Channel Audio Amplifier
1 - Power Cord
1 - M8 Installation & User Guide
M8
M8 FEATURES
Amplifier
35W Continuous @ 8Ω; 20Hz - 20kHz; <0.07% THD (2 Channels driven into 8 ohms - remainder at 1/8 of rated power)
55W Continuous @ 4Ω; 20Hz - 20kHz; <0.1% THD (2 Channels driven - remainder un-driven)
110W Continuous @ 8Ω; 20Hz - 20kHz <0.5% THD (Bridged mode 2 Channels driven - remainder un-driven)
Audio Inputs
Eight individual Line Inputs configurable as eight mono or four stereo inputs
Bus Input can feed one stereo or two mono audio signal to all eight or specifically selected channels
AUX In can feed a stereo or two mono signals to specifically selected left or right channels
Outputs
Eight five-way binding posts for speaker connection
BUS Loop can feed the BUS Input signal to additional amplifiers
Bridgeable amplifier outputs for high power applications
Control
Manual Power ON/OFF
Audio Sensing Power ON/OFF
3-30V AC/DC Trigger ON/OFF
12VDC Control Output
Individual Input Level adjustment for all eight channels
Selectable Line, BUS, AUX Input selection, by channel
Front Panel Display
ON/OFF indicator
Eight hazard (red) LEDs
5
M8 FRONT PANEL FEATURES
M8
1
2
Diagram 1 M8 Front Panel Features
FRONT PANEL
1. ON/OFF - Press this button to turn the M8 ON/OFF. (Rear Panel Power Mode switch set to ON.) When OFF, the button backlight is OFF. To turn the unit ON, press the button. The ON/OFF button backlight and all eight Front Panel LEDs will illuminate
blue. The M8 will go through a power up sequence of about five seconds after which the amplifier will output audio to connected speakers on any channels with selected, active audio input. To turn the unit OFF, press the button again and all audio
signals will be cut, the amp will turn off, the Front Panel LEDs and the ON/OFF button backlight will turn OFF.
2. FRONT PANEL LEDs - (Eight red LEDs) LEDs 1-4 will turn red if any one of channels 1-4 has shut down due to thermal overload, short circuit or other improper operating condition on one of those channels. LEDs 5-8 will turn red if any one of channels 5-8 has shut down due to thermal overload, short circuit or other improper operating condition on one of those channels.
6
M8 REAR PANEL FEATURES
9
3 4 5
14
6
13
7 8
10
12
11
Diagram 2 M8 Rear Panel Features
REAR PANEL
3. AUX IN - (Two assignable RCA jacks) Connect to the line level audio output of an audio source to be fed to M8 channels
switched to AUX L or AUX R on the Rear Panel. A mono source connected to the Left or Right AUX IN will be fed to any channel
with the Channel Input switch set to AUX L (channels 1, 3, 5, 7) or AUX R (channels 2, 4, 6, 8). A stereo signal can be selectively
routed by selecting both AUX L and AUX R for a given pair of channels (1/2, 3/4, 5/6, 7/8.)
4. BUS LOOP - (Two RCA jacks) Connect to the BUS IN on up to four additional M8s to add additional rooms of amplified audio
for the source connected to BUS IN. BUS LOOP is a fixed, (non-variable) line level audio output.
5. BUS IN - (Two assignable RCA jacks) Connect to the line level audio output of an audio source such as an A/V receiver or multizone controller that is to be fed to multiple speaker pair, for multiroom audio expansion. A stereo source connected to BUS
IN Left & Right will be fed to any M8 channel pair (1/2, 3/4, 5/6, 7/8) with the Channel Input switches set to BUS L and BUS R. A
mono source connected to either the BUS L or BUS R IN can be fed to any channel by setting the Channel Input switch to BUS
L or BUS R. Any source(s) mono or stereo, connected to the BUS IN will also be fed to the BUS LOOP output for connection of
additional M8s.
6. BRIDGED ON/OFF - (Four, two position switches) When set in the OFF position, the associated channels, (1/2, 3/4, 5/6, 7/8)
will be set to normal mode, (standard power, discreet channel configuration, 35W/ch), with one speaker connected to each
Speaker Terminal pair (1, 2, 3, 4, 5, 6, 7, 8). When set in the ON position, the associated pairs will be combined into a single
channel for high power (70W/ch) output with one speaker connected to the now ‘bridged’ terminals, (1/2, 3/4, 5/6, 7/8). This
allows high power output for large listening areas or driving high powered speakers.
7. LEVEL - (Eight, knobs) Turn these knobs to independently raise or lower the volume of each channel. Turn counterclockwise
(left) to lower the channel output, turn clockwise (right) to raise channel output. These controls can be used to balance the
overall room to room speaker volume in the system, adjust balance for a stereo pair or set a maximum output level for a given
channel.
8
LINE IN - (Eight, RCA jacks) Connect to the line level output of an audio source that is to be amplified as a mono channel (1, 2,
3, 4, 5, 6, 7, 8), stereo pair (1/2, 3/4, 5/6, 7/8) or bridged stereo pair (1+2/3+4, 5+6/7+8). This allows the M8 to be configured as
eight mono amplifiers, four normal power stereo amplifiers, or two high power stereo amplifiers.
7
M8 REAR PANEL FEATURES
9. CHANNEL INPUT SWITCH - (Eight, four-position switches) Set these switches to select the input to each channel. These
switches allow multiple audio sources to be connected and played simultaneously. LINE IN feeds audio only to it’s dedicated
channel. BUS L/BUS R will set a channel’s input to the source connected to BUS IN Left or Right. AUX L/AUX R will set a channel’s input to the source connected to AUX IN Left/Right.
LINE - Set the switch to LINE to select a source connected to that channel’s Line IN. Line IN configuration can be mono
(1-8) or stereo (1/2, 3/4, 5/6, 7/8) or bridged stereo pair (1+2/3+4, 5+6/7+8) inputs.
BUS L/BUS R - Set the switch to BUS L/BUS R to set a channel input to the source connected to BUS IN Left/Right.
To select a mono source connected to BUS IN Left, set the switch to BUS L. To select a mono source connected to BUS IN
Right, set the switch to BUS R.
To select a stereo source connected to the BUS IN, set the switches for channel pair (1/2, 3/4, 5/6, 7/8) to BUS L. (1, 3, 5, 7)
and BUS R (2, 4, 6, 8).
AUX L/AUX R - Set the switch to AUX L/AUX R to set a channel input to the source connected to AUX IN Left/Right.
To select a mono source connected to AUX IN Left, set the switches for odd number channels (1, 3, 5, 7) to AUX L. To
select a mono source connected to AUX IN Right, set the switches for even number channels (2, 4, 6, 8) to AUX R.
Note: A mono source connected to AUX IN Left can only be selected by odd number channels. A mono source connected
to AUX IN Right can only be selected by even number channels. To distribute a mono source to eight channels, use BUS
IN.
To select a stereo source connected to the AUX IN, set the switches for channel pair (1/2, 3/4, 5/6, 7/8) to AUX L (1, 3, 5, 7)
and AUX R (2, 4, 6, 8).
10. FUSE - Replaceable T10AL/250V fuse.
11. AC INPUT - Connect to the included IEC 2-prong AC Power Cord. After all connections have been made and confirmed, plug
the power cord into an unswitched 110V AC Outlet to power the M8. Contact Proficient Audio Systems for a proper replacement should the AC Power Cord be damaged or misplaced.
12. SPEAKER TERMINALS - (Sixteen five way binding posts) Connect to the appropriate speaker + and - terminals as configured
for normal or bridged modes. The M8 can be configured for eight mono, four normal power stereo outputs, two bridged high
power stereo outputs or a combination of mono, stereo and high power bridged outputs.
Note: Regardless of configuration, be sure to confirm switch settings and connections prior to powering up the M8. Improper
bridged switch settings and connections can cause severe damage to the M8 and speakers. The Proficient Warranty does not
cover this type of damage.
13. 12V DC CONTROL OUT - (One 3.5mm mini jack) Connect to the 12V DC Control Input on a device that is to be synced to M8
ON/OFF status. When the M8 turns ON, (Manual, Auto ON or Trigger) the 12V DC Control Out will output 12 V DC that can be
used to activate a DC voltage controlled device. When the M8 turns OFF (Manual, Auto or Trigger) voltage will be cut to the
Control Out and the controlled device will turn OFF. POLARITY: TIP = +12V; SLEEVE = GND.
14. POWER MODE/TRIGGER IN - (One, three position switch; One, 2.1mm coaxial jack) Configure this switch and Trigger jack to
set the power ON/OFF mode for the M8. The M8 can be turned ON/OFF in one of three ways: manually pressing the ON/OFF
button on the Front Panel; Auto ON (audio sense) which will turn the amp ON when an audio signal is present on any input
and turn it OFF when no audio signal has been sensed for 5 minutes; Voltage Trigger will turn the M8 ON/OFF with the presence or absence of 3-30V AC/DC on the Trigger IN jack.
8
INSTALLATION
2 INCH MINIMUM
FOR PROPER AIR FLOW
TO MAINTAIN PROPER AIR FLOW,
PLACE OTHER COMPONENTS
ON SEPARATE SHELVES
ALWAYS KEEP TOP AND
BOTTOM VENTS CLEAR
1 INCH MIN
FOR PROPER
AIR FLOW
1 INCH MIN
FOR PROPER
AIR FLOW
M8
VENT HOLES IN SHELF IMPROVE AIR FLOW
Diagram 3 M8 Air Flow Requirements
AIR FLOW
The Proficient M8 is designed to run cool under most normal operating conditions but may run warm with multiple channels running at moderate to high output. It is typical for an eight-channel amplifier to generate a certain amount of heat dissipation that
needs to be properly ventilated.
Closed spaces such as equipment cabinets and racks can get hot with the heat generated by microprocessors and motors in various devices. Providing proper ventilation for good air flow will help keep the temperature down and protect not only the M8 but
all system components and help preserve their longevity.
When installing the M8 a few easy steps should be taken to assure proper air flow:
1. Never block the vent holes on the top or bottom of the M8.
2. Never remove the feet on the bottom of the M8.
3. Leave at least 2 inches above and 1 inch on each side of the M8 for free air flow.
4. Whenever possible, provide vent holes in the shelf under the M8 to increase air flow into the bottom of the unit.
5. Leave the back of the cabinet as open as possible for good air circulation.
6. Place other system components on separate shelves.
7. Install fans in cabinets and racks when equipment is generating high heat levels.
9
INSTALLATION
Video Display
Front
Left
Front
Right
A
A=B=C
B
C
Ideal
Listening
Zone
Diagram 4 Speaker Placement
SPEAKER PLACEMENT
Use the following recommendations when determining speaker placement.
Determine The Ideal Listening Zone
The area where the user will most likely be sitting when listening to the speakers is the Ideal Listening Zone.
Placement of Stereo Speakers
The distance between the left and right speakers should as closely equal the distance from one speaker to the listener as possible. (A=B=C) The left and right speakers should also be equal distances from a TV or Video Display for balance with audio/video
content.
Bookshelf Speakers
In audio/video applications when using bookshelf speakers, locating the speakers at the same height as the TV or Video Display
and at equal distances to left and right of the Video Display will create an effect where the sound emanates from the picture.
Inwall Speakers
Ideally, speaker placement should be similar to that described for bookshelf speakers. Many brands of inwall speakers, including
most Proficient models, have pivoting tweeters that can ‘focus’ the high frequency content directly to the Ideal Listening Zone
and compensate for sometimes less than desirable placement so the sound will still be balanced with the Video Display.
Ceiling Speakers
Ceiling speakers are very popular in modern architecture. Ceiling speakers, like bookshelf or inwall speakers, should be placed at
an equal distance from each other and the Ideal Listening Zone. Many Proficient ceiling speakers have pivoting tweeters that can
‘focus’ the high frequency content directly to the Ideal Listening Zone and compensate for sometimes less than desirable placement so the sound will still be balanced with the Video Display.
10
INSTALLATION
WIRE REQUIREMENTS
Use the following recommendations for speaker wire runs.
Speaker Wire (Multiroom)
A volume control will typically be required to control individual room volume when the M8 is used in a multiroom application,
(single source system using the BUS IN or AUX IN to feed multiple rooms). The individual channel level controls can be used to set
individual channel levels or set maximum room volume at the amp, but do not allow volume control in the remote room.
Connecting the M8 for multiroom audio requires that two pair of speaker wire be run from the M8 location to each volume control
in home runs (each run direct from the M8 to each volume control). One additional pair of speaker wires will then be run from
each volume control to each of the speakers that will be controlled by that volume control.
1. Pull 1 run of 16AWG (min) 4-conductor stranded speaker wire from the M8 location to each volume control in a home run
configuration. Leave extra length (24 inches) on both ends to work with when making connections.
2. Pull 1 pair of 16AWG (min) 2-conductor stranded speaker wire from the volume control to each of the left and right speakers
that will be controlled by that volume control. Leave extra length (24 inches) on both ends to work with when making connections.
Speaker Wire (Multizone)
A volume control is typically not required in a multizone application. Multizone controllers feature multiple, remote controlled
zone preamps. In this application, each zone’s stereo preamp output gets connected to a pair of channel inputs on the M8. Each
zone’s volume is controlled using a hand-held remote or keypad, so the volume control is not required.
Connecting the M8 for multizone audio, requires that two pair of speaker wire be run from the M8 location directly to each
speaker in home runs (each run direct from the M8 to each speaker).
1. Pull 1 run of 16AWG (min) 2-conductor stranded speaker wire from the M8 location to each speaker in a home run configuration. Leave extra length (24 inches) on both ends to work with when making connections. (4-conductor wire can be used by
running the 4-conductor wire to an entry point in the zone and then splitting into two runs of 2-conductors, one run (pair) to
each speaker.)
In new construction, the wires should be pulled before the drywall is installed. In retro-fit applications, (existing construction) the
wires will need to be pulled through the walls and holes will need to be cut in the drywall for the volume controls and speakers. It
is highly recommended that an audio/video installation professional be hired to do this type of work. Contact the retailer that the
M8 was purchased from for information on professional installation.
Use the following Chart to determine the proper wire gauge based on actual overall wire length from the M8 to each volume control and from the volume control to the speaker pair it will be controlling. For multizone applications, determine the actual length
from the M8 to the speaker.
SPEAKER WIRE LENGTH
SPEAKER WIRE GAUGE
150’ (46m)
16 AWG
400’ (122m)
14 AWG
1000’ (305m)
12 AWG
11
SPEAKER CONNECTIONS
NORMAL MODE SPEAKER CONNECTIONS
Channel 1/2
Bridged Switch
The M8 amplifier channels can be configured for normal power
output (35W/ch) (Diagrams 6/7) or high powered (Bridged
70W/ch) output (Diagrams 8/9). Normal power is appropriate
for most multiroom and multizone audio applications. Bridged
mode should be used for covering large areas or with high
powered speakers when additional power is required. When
using the M8 in normal power mode, follow the connection
instructions in this section. For Bridged mode, see section:
Bridged Mode Speaker Connections.
Bridged Switch
OFF
Bridged
M8
Off On
Bridged
Left +
Right +
Left -
Right 1
CAUTION! Regardless of configuration follow the connection
instructions for normal and bridged power carefully. Failure to
do so can cause severe damage to the M8 and speakers. The
Proficient Warranty does not cover this type of damage.
2
Volume
Control
For example of normal power speaker connections, Channels 1
& 2 will be used. Diagrams 6/7
1. Use 16AWG (min) 2-conductor stranded speaker wire for
speaker connection. (Refer to the Speaker Wire Length
Chart for wire runs over 150’.)
Left
Speaker
Right
Speaker
White Stripe
To Positive
2. Strip approximately 1/2 to 3/4 of an inch off the ends and
twist the strands together so there are no loose ends that
can cause shorts.
White Stripe
To Positive
16AWG Stranded
(minimum)
Speaker Wire
3. Loosen the Channel 1 Speaker Terminals as shown in Diagram 5 so there is enough room between the post and
the collar to feed the striped wire through without damaging the strands.
Diagram 6 M8 Normal Mode Speaker Connections - Multiroom
Channel 1/2
Bridged Switch
Bridged Switch
OFF
4. Tighten the post to secure the wire.
Bridged
M8
Off On
5. Repeat for all Channel 1 & 2 + and - connections. Channel
1 is the left channel, Channel 2 is the right channel.
Bridged
Left +
Right +
Left -
Right -
6. Confirm connection and polarity.
7. Connect the speaker wires to the appropriate left and
right + and - terminals on the volume control and speakers (Diagram 6 - multiroom) or speakers (Diagram 7
- multizone) .
1
2
8. Confirm connection and polarity.
9. Set the Channel 1/2 Bridged switch to the OFF position as
shown in Diagrams 6/7.
Left
Speaker
10. Repeat Steps 2-9 for all other rooms/zones that are configured for normal mode.
Right
Speaker
White Stripe
To Positive
White Stripe
To Positive
16AWG Stranded
(minimum)
Speaker Wire
Diagram 5 Bare Wire Connections
Diagram 7 M8 Normal Mode Speaker Connections - Multizone
12
SPEAKER CONNECTIONS
BRIDGED MODE SPEAKER CONNECTIONS
Channel 5/6
Bridged Switch
Bridged mode should be used for covering large areas or with
high powered speakers when additional power is required.
When using the M8 in bridged, (high power) mode, follow
the connection instructions in this section. For normal power
mode, see section: Normal Mode Speaker Connections.
Bridged
Bridged
Polarity
Channel 7/8
Bridged Switch
Bridged
Bridged
Switches
ON
Off On
Bridged
CAUTION! Regardless of configuration follow the connection
instructions for normal and bridged power carefully. Failure to
do so can cause severe damage to the M8 and speakers. The
Proficient Warranty does not cover this type of damage.
Bridged
5
7
6
M8
For example of bridged, high power speaker connections,
Channels 5-8 will be used. Diagrams 8/9
1. Use 16AWG (min) 2-conductor stranded speaker wire for
speaker connection. (Refer to the Speaker Wire Length
Chart for wire runs over 150’.)
Bridged
Polarity
Off On
8
NO CONNECTION
Volume
Control
Left
Speaker
2. Strip approximately 1/2 to 3/4 of an inch off the ends and
twist the strands together so there are no loose ends that
can cause shorts.
Right
Speaker
White Stripe
To Positive
3. Loosen the Channel 5 Bridged - Speaker Terminal as
shown in Diagram 5 so there is enough room between
the post and the collar to feed the striped wire through
without damaging the strands.
White Stripe
To Positive
16AWG Stranded
(minimum)
Speaker Wire
Diagram 8 M8 Bridged Mode Speaker Connections - Multiroom
4. Tighten the post to secure the wire.
5. Repeat for the appropriate Channel 5-8 bridged + and
- terminals. Bridged Channels 5/6 are the left channel,
Bridged Channels 7/8 are the right channel.
Channel 5/6
Bridged Switch
Bridged
Bridged
Polarity
Bridged
Bridged
Switches
ON
Off On
6. Confirm connection and polarity. Confirm again.
Channel 7/8
Bridged Switch
Bridged
Polarity
Off On
Bridged
Bridged
7. Connect the speaker wires to the appropriate left and
right + and - terminals on the volume control and speakers (Diagram 8 - multiroom) or speakers (Diagram 9
- multizone) .
5
M8
8. Confirm connection and polarity.
9. Set the Channel 5/6 and 7/8 Bridged switches to the ON
position as shown in Diagrams 8/9. Failure to do so will
cause severe damage to the M8 and speakers. The Proficient Warranty does not cover this type of damage.
6
7
8
NO CONNECTION
Left
Speaker
Right
Speaker
10. Repeat Steps 2-9 for all other rooms/zones that are configured for Bridged Mode.
White Stripe
To Positive
White Stripe
To Positive
16AWG Stranded
(minimum)
Speaker Wire
Diagram 9 M8 Bridged Mode Speaker Connections - Multizone
13
CONNECTIONS & SETUP
AUDIO CONNECTIONS
Audio Source
The M8 has three audio inputs: Line IN, BUS IN and AUX IN. The
assignment of these inputs provides a wide range of design
flexibility for almost any multiroom or multizone audio application.
Note: All examples are stereo unless otherwise noted.
Stereo RCA-RCA
Patch Cable
Line OUT
Line IN (Diagram 10)
Eight, line level audio inputs allow direct channel connection
of up to eight mono sources or four stereo sources. They are
best used for stereo amplification of zone outputs from a multizone controller or for amplification of a stereo source that
is to be fed to a dedicated pair of speakers. Also see: System
Applications/Multizone Mixed Use
1. Using a stereo RCA patch cable with gold ends, connect
the L & R line level audio OUT of an audio source to a
channel pair (1/2, 3/4, 5/6, 7/8) of Line INs on the M8. Odd
number channels (1, 3, 5, 7) are left, even number channels (2, 4, 6, 8) are right.
Bridged Switch
OFF
M8
Line IN
M8
Channel Input
Switches to Line
2. Set the Bridged switch for the channels used in Step 1 to
OFF.
Diagram 10 M8 Line In Audio Connections
3. Set the Channel Input switches for the channels used in
Step 1 to LINE.
Preamp OUT
4. Connect the speakers for this source to the Speaker terminals with the same numbers as the channels used in Step
1. Use the Normal Mode configuration as described in
section: Normal Mode Speaker Connections.
Note: Use of a volume control is optional depending upon
system design (multiroom vs multizone).
Stereo RCA-RCA
Patch Cable
5. Repeat Steps 1-4 for all other audio sources using Line IN
connections.
M8 BUS IN
BUS IN/BUS LOOP (Diagram 11)
BUS IN is ideal for distributing mono or stereo signals to multiple output channels. BUS IN can feed up to eight mono or
four stereo outputs. Line level audio connected to BUS L IN will
feed to any channel set to BUS L and line level audio connected to BUS R IN will feed to any channel set to BUS R. The BUS IN
signal will also output as a fixed line level audio signal via the
BUS LOOP, which can then be connected to up to four additional M8 BUS IN’s for up to twenty rooms of amplified audio.
Also see: System Applications/Multiroom & Home Theater
Plus Second Zone.
A/V Receiver or
Multizone Controller
Bridged Switch
OFF
M8 #1
M8 #2
M8 BUS IN
Channel Input
Switches to BUS L R
Channel Input
Switches to BUS L R
From M8 #1 BUS LOOP to M8 #2 BUS IN
Bridged Switch
OFF
Stereo RCA-RCA
Patch Cable
BUS IN (Mono)
Diagram 11 M8 BUS IN/BUS LOOP Audio Connections
1. Using a mono RCA patch cable with gold ends, connect
the line level audio OUT of a mono audio source to the BUS IN left or right input on the M8.
2. Set the Channel Input switches for the channels that are to output a source connected to BUS IN Left to BUS L.
3. Set the Channel Input switches for the channels that are to output a source connected to BUS IN Right to BUS R.
14
CONNECTIONS & SETUP
3. Set the Bridged switches for the channels used in Steps 2-3 to OFF.
4. Connect the speakers that are to play the source(s) connected to BUS IN
to the Speaker terminals with the same numbers as the channels used in
Steps 2-3. Use the Normal Mode configuration as described in section:
Normal Mode Speaker Connections.
BUS IN (Stereo)
1. Using a stereo RCA patch cable with gold ends, connect the L & R line level
audio OUT of an audio source to the BUS IN Left and Right inputs on the
M8.
Line OUT
Audio Source
Stereo RCA-RCA
Patch Cable
Bridged Switch
OFF
M8
2. Set the Channel Input switches for the channels that are to output the stereo source connected to BUS IN to BUS L/BUS R. Set the switches for stereo
channel pair (1/2, 3/4, 5/6, 7/8) as BUS L (1, 3, 5, 7) and BUS R (2, 4, 6, 8).
3. Set the Bridged switches for the channels used in Step 2 to OFF.
M8 AUX IN
Channel Input
Switches to AUX L/R
Diagram 12 M8 AUX IN Audio Connections
4. Connect the speakers that are to play the source connected to BUS IN to the
Speaker terminals with the same numbers as the channels used in Step 2.
Use the Normal Mode configuration as described in section: Normal Mode Speaker Connections.
Note: A volume control will typically be required for individual room volume in this application.
BUS LOOP (Diagram 11)
To expand audio distribution for the source connected to BUS IN to more than eight mono or four stereo outputs, the BUS LOOP
can be connected to up to four additional M8s. Also see: System Applications/Multiroom
1. Using a stereo patch cable with gold ends, connect the BUS LOOP on M8 #1 to the BUS IN on M8 #2.
2. Repeat Step 1 for all additional M8s. (Five M8s total.)
3. Follow Steps 1-4 in section BUS IN to configure the additional M8s.
AUX IN (Diagram 12)
AUX IN will feed stereo line level audio to any channel pair set to AUX L/AUX R. A mono signal input to AUX IN Left can be fed to
any channel set to AUX L. A mono signal input to AUX IN Right can be fed to any channel set to AUX R. For flexibility, the AUX IN
can feed one source to a group of rooms while the BUS IN feeds a different source to a different group of rooms. Also see: System
Applications/Multizone Mixed Use
Note: The AUX IN does not feature an AUX LOOP. If using multiple M8s, use the BUS IN/BUS LOOP for the source feeding the larger
number of rooms.
AUX IN (Mono)
1. Using a mono RCA patch cable with gold ends, connect the line level audio OUT of a mono audio source to the left or right
AUX IN on the M8.
2. Set the Channel Input switches for the channels that are to output a source connected to AUX IN Left to AUX L. (Channels 1, 3,
5, 7).
3. Set the Channel Input switches for the channels that are to output a source connected to AUX IN Right to AUX R. (Channels 2,
4, 6, 8).
3. Set the Bridged switches for the channels used in Steps 2-3 to OFF.
4. Connect the speakers that are to play the source(s) connected to AUX IN to the Speaker terminals with the same numbers as
the channels used in Steps 2-3. Use the Normal Mode configuration as described in section: Normal Mode Speaker Connections.
15
CONNECTIONS & SETUP
AUX IN (Stereo)
1. Using a stereo RCA patch cable with gold ends, connect
the L & R line level audio OUT of an audio source to the
AUX IN Left and Right inputs on the M8.
Audio Source
2. Set the Channel Input switches for the channels that are
to output the stereo source connected to AUX IN to AUX
L and AUX R. Set the switches for stereo channel pair (1/2,
3/4, 5/6, 7/8) as AUX L (1, 3, 5, 7) and AUX R (2, 4, 6, 8).
Line OUT
Stereo RCA-RCA
Patch Cable
Left Channel
from Source
3. Set the Bridged switches for the channels used in Step 2
to OFF.
Right Channel
from Source
Bridged Switch
ON
4. Connect the speakers that are to play the source connected to AUX IN to the Speaker terminals with the same
numbers as the channels used in Step 2. Use the Normal
Mode configuration as described in section: Normal
Mode Speaker Connections.
Note: A volume control will typically be required for individual room volume in this application.
Bridged Switch
ON M8
M8
Odd Number Channel
Line IN
BRIDGED MODE CONNECTIONS (Diagram 13)
Odd Number
Channel Input Switches
to LINE
When high power output is required for a particular source,
two adjacent channels (1/2, 3/4, 5/6, 7/8) can be ‘bridged’ to
create a single high power channel. Two bridged channel pair
can then be used for stereo high power output. Also see: System Applications/Multizone Mixed Use
Diagram 13 M8 Bridged Mode Audio Input Connections
For example of bridged channel source connections, Channels 5-8 (same as those used in the bridged speaker connection diagrams) will be used to connect a stereo device to two bridged channel pair.
1. Using a stereo RCA patch cable with gold ends, connect the L & R line level audio OUT of an audio source to the odd number
(1, 3, 5, 7) Line INs on the M8. Use channels 1, 5 for left, use channels 3, 7 for right. In Diagram 13, Channel 5 is left, Channel 7
is right.
2. Set the Bridged switches for the channels used in Step 1 (5/6, 7/8) to ON.
3. Set the Channel Input switches for the channels used in Step 1 (Channels 5/6, 7/8) to LINE.
4. Connect the speakers for this source to the bridged channel Speaker terminals with the same numbers as the channels used
in Step 1 (5/6, 7/8). Use the Bridged Mode configuration as described in section: Bridged Mode Speaker Connections.
Note: Volume control is optional depending upon system design.
5. Repeat Steps 1-4 to connect another source in bridged high power mode.
CAUTION! Regardless of configuration follow the connection instructions for normal and bridged power carefully. Failure to do so
can cause severe damage to the M8 and speakers. The Proficient Warranty does not cover this type of damage.
16
CONNECTIONS & SETUP
POWER ON/OFF MODES
Power Mode Switch
set to ON
The M8 can be configured for three power ON/OFF Modes: Manual, Audio Sensing and AC/DC Voltage Trigger. Set the Power Mode switch to the preferred mode
and connect the Trigger IN if using the voltage trigger mode.
Manual Power
Manual power mode requires pressing the ON/OFF switch on the Front Panel to
turn the M8 ON/OFF. One press of the button will turn all eight amplifier channels ON. Another press will turn the amplifier OFF.
1. Set the Power Mode switch to ON as shown in Diagram 14. No other configuration is required.
2. To test, with the M8 connected to an unswitched 110V AC outlet, press the
ON/OFF button on the Front Panel. The ON/OFF button backlight will turn
ON (blue). After a few seconds the amplifier will output audio to properly
configured channels. To turn OFF, press the button again, the audio will be
cut from all channels, the ON/OFF button backlight will turn OFF.
Diagram 14 Power Mode - Manual
Power Mode Switch
set to AUTO ON
Audio Sensing (Auto On)
Audio sensing will have the M8 turn ON when an audio signal is present on any
input, (Line, BUS or AUX). When an audio signal is detected, all eight amplifier
channels will turn ON. When no audio signal is detected for 5 minutes, the amplifier will turn OFF.
1. Set the Power Mode switch to Auto On as shown in Diagram 15.
2. Set the M8 Front Panel ON/OFF button to the ON (in) position.
Diagram 15 Power Mode - Audio Sense
3. Connect at least one audio source to any input to act as a trigger for audio
sensing.
4. To test, with the M8 and audio source connected to unswitched 110V AC
outlets, activate the audio source and play content, (CD, Tuner, etc). The
ON/OFF button backlight will tun ON (blue). After a few seconds the amplifier will output audio to properly connected channels. To turn OFF, stop the
audio output from the audio source. After 5 minutes of no audio input, the
M8 will turn OFF. (The ON/OFF button backlight will turn OFF.)
Voltage Sensing (Trigger)
Voltage sensing will turn the M8 ON when 3-30V AC/DC is present on the Trigger
jack. When a trigger voltage is detected, all eight amplifier channels will turn ON.
When no trigger voltage is detected, the amplifier will turn OFF.
1. Connect the 3-30V AC/DC Control Out on the trigger device to the 2.1mm
Trigger jack on the M8 Rear Panel as shown in Diagram 16. POLARITY: (DC)
Center (pin)=+3-30V; Sleeve= GND. AC voltage, polarity is non-critical.
Power Mode Switch
set to TRIGGER
M8 AC/DC
Trigger IN
M8
2.1mm
Coaxial Plug
Cable
Black
To Trigger Device
Control OUT GND
White Stripe
To Trigger Device
Control OUT 3-30V AC/DC
2. Set the Power Mode switch to Trigger as shown in Diagram 16.
3. Set the M8 Front Panel ON/OFF button to the ON (in) position.
Diagram 16 Power Mode - Voltage Sense
4. To test, with the M8 and trigger device connected to unswitched 110V AC
outlets, activate the trigger device so the Control Out is activated. The ON/
OFF button backlight will tun ON (blue). After a few seconds the amplifier will output audio to properly connected channels.
To turn OFF, cut the Control Out voltage from the trigger device. The M8 will turn OFF. (The ON/OFF button backlight will turn
OFF.) If not, confirm trigger IN/OUT connections and polarity. Use a volt meter to confirm trigger voltage at the M8 and trigger
device.
17
CONNECTIONS & SETUP
Control Out
The M8 features a 12VDC Control Out that can be used to sync
an external device with a 12VDC Control IN to M8 power ON/OFF
status. When the M8 turns ON (Manual, Audio Sense or Trigger)
the Control Out will output 12VDC. When the M8 turns OFF
(Manual, Audio Sense or Trigger) the Control Out will output
0VDC.
1. Using a 3.5mm mini cable, connect the M8 Control Out to
the Control IN on the device that is to synced to M8 power
status as shown in Diagram 17. POLARITY: TIP=+12VDC;
SLEEVE=GND.
Power Mode Switch
set to ON, Auto or Trigger
M8 12VDC
Control OUT
M8
2. Terminate the 3.5mm mini cable as appropriate for the
Control IN connection on the device being synced. Maintain
proper polarity.
CAUTION! Improper connection can cause damage to the
M8, the synced device or both. The Proficient Warranty does
not cover this type of damage.
3. To test, with the M8 and synced devices connected to 110V
AC outlets, and with the Control IN/OUTs properly connected, turn the M8 ON. The synced device should turn ON.
If not, confirm Control IN/OUT connections and polarity. Use
a volt meter to confirm Control Out voltage at the M8 and
synced device. Turn the M8 OFF, the synced device should
turn OFF. (Some devices have an adjustable delay for Control
IN. Set as needed for the given device/application.)
3.5mm
Mini Plug
Cable
Black
To Trigger Device
Control OUT GND
White Stripe
To Trigger Device
Control OUT 3-30V AC/DC
Diagram 17 M8 12VDC Control Out Connections
AC Power Cord
1. After all connections have been made and confirmed, connect the female IEC plug into the AC Input on the M8 Rear
Panel and then plug the AC power cord into an unswitched
110V AC outlet. Diagram 18
Diagram 18 AC Power Cord Connections
18
CONNECTIONS & SETUP
LEVEL CONTROL
Left
Channel
The Level Controls on the M8 allow adjusting the audio level of
each channel. The adjustments can be made as mono channels,
normal stereo pair or bridged pair.
Channel
Level Controls
Right
Channel
M8
The Level Controls can be used to balance overall system levels
so audio is consistent from room to room. This can help compensate for differences in acoustics for different rooms, given how
each room is finished (hard vs soft surfaces) or speaker efficiency
if different models or speaker types are used in different rooms.
The Level Controls are also affective for setting a maximum output level for a given room or speaker. This will help prevent the
amp from clipping and also protect the speakers from damage
by being driven to improper levels.
The Level Controls can also be used to balance stereo audio
when the speakers placement is less than ideal. See section:
Speaker Placement for additional information.
Diagram 19 M8 Level Controls - Normal Mode
Level Control
Before setting Level Controls be sure all connections are correct
and have been confirmed prior to powering up the system.
1. With the system OFF, set the M8 Level Controls to the center
detente (click) position.
Left
Channel
Bridged Channel
Level Controls
Right
Channel
M8
If using individual room volume controls, turn the volume
controls all the way up, (clockwise/right).
Turn the master volume, (receiver, zone controller, etc) all
the way down.
2. Turn the system ON and play a source (CD, Tuner, etc.)
3. To adjust M8 Level Controls, turn the knobs counterclockwise (left) to reduce level. Turn the knobs clockwise (right) to
increase level.
Diagram 20 M8 Level Controls - Bridged Mode
For stereo applications, in Normal Mode, odd numbered
channels are left, even numbered channels are right. In Diagram 19, (Normal Mode), Channel 1 is left, Channel 2 is right. For stereo applications in Bridged Mode, adjustments are made
using the odd numbered channels of the bridged pair. In Diagram 20, (Bridged Mode), Channel 5 is left, Channel 7 is right.
4. Slowly raise the master volume on the receiver or zone controller until audio is playing through the M8 at a moderate level.
Confirm audio output from all connected speakers.
5. Alternately using the master volume control on the receiver or zone controller and M8 Level Controls, in small steps, continue
to raise the master volume and make adjustments to the M8 Level Controls to set a maximum output level for a given speaker/pair. Check each speaker/pair as master volume is raised to monitor output level and distortion. Be careful not to damage
the M8 or speakers.
Note: Once max level has been set the actual listening level will be reduced when adjusting the individual room volume controls.
6. Reduce individual volume control levels to normal listening levels.
7. Leave the master volume control on the receiver or zone controller set to the level used while setting the Level Controls.
19
SYSTEM APPLICATIONS
CD PLAYER
DVD PLAYER
DVD PLAYER
CD PLAYER
LINE LEVEL OUT
L
DIGITAL AUDIO OUT
R
LINE LEVEL OUT
OPTICAL COAXIAL
L
R
V
S VIDEO
OUT
DIGITAL AUDIO OUT
COMPONENT VIDEO OUT
OPTICAL COAXIAL
Y
Pb
Pr
To Unswitched
110V AC Outlet
PROFICIENT M40 A/V RECEIVER
Stereo RCA-RCA
Patch Cables
A/V Receiver
Pre-OUT
M8
BUS LOOP
A/V Receiver
Main IN
M8
BUS IN
Set all Bridged
Switches to OFF
Set Odd # BUS
Channel Input Switches to BUS L
Even # Channels to BUS R
M8
16AWG (min) 2-Conductor
Stranded Speaker Wire
16AWG (min) 2-Conductor
Stranded Speaker Wire
Room 1
To Unswitched
110V AC Outlet
Room 2
Room 3
Room 4
Proficient
VCS60
Volume
Control
Proficient
VCS60
Volume
Control
Proficient
VCS60
Volume
Control
Proficient
VCS60
Volume
Control
Proficient C645 Ceiling Speakers
Proficient C645 Ceiling Speakers
Proficient C645 Ceiling Speakers
Proficient C645 Ceiling Speakers
Diagram 21 M8 Multiroom System
20
SYSTEM APPLICATIONS
SYSTEM APPLICATIONS
The M8 is a versatile multichannel amplifier that can be used in a variety of applications. The following pages will provide three M8
system examples: multiroom, home theater with a second zone and mixed use in a multizone system. These are by no means the
only uses for this versatile piece. The M8 can be used for just about any application where multiple audio channels are required.
For assistance with M8 applications, please call Proficient Audio Technical Support at 877.888.9004 or email techsupport@proficientaudio.com. Proficient Tech Support is open every weekday, except holidays, between the hours of 7:00AM and 5:00PM PST.
Multiroom
The multiroom system shown in Diagram 21 features the M8 when used to add additional rooms of amplified audio to an A/V
Receiver, (coincidentally a Proficient M40). This system is a single-source system, meaning the same source will be played through
all active speakers at the same time. The system shown allows up to six or eight rooms of audio depending upon configuration.
Note: The M40 allows direct connection of two pair of speakers, or up to four pair if using impedance matching volume controls.
Those speakers/volume controls are not shown in Diagram 21. Please refer to the Owners Manual if using another brand receiver
for information on speaker connections/limitations.
Audio/Video sources are connected to the M40 Receiver in a normal manner. They are selected and played in a normal manner using the front panel controls or a remote control. When a source is selected it will play through all active speakers. With this type of
system, it is best to set a master volume on the Receiver and use the individual room volume controls to adjust volume.
Bus In
The M8 is connected to the M40 Receiver Pre-Out. The Pre-Out is a variable line level audio output that is connected to the M8
BUS IN. The M8 BUS IN audio signal will output through any channel(s) that are set to BUS L (left) or BUS R (right).
1. Connect the M40 Pre-OUT to the M8 BUS IN.
2. Set the Channel Input switches for all channels that are to output the BUS IN to BUS L (left) and BUS R (right).
Bus Loop
The M8 BUS LOOP is a fixed line level audio output that can be used in a number of different ways. In the example shown, the BUS
LOOP is being fed back to the M40 Receiver Main IN. The M40 features a pre-out/main in connection for various purposes. In this
case, that connection will be used to insert the M8 into the source audio signal path. That is: when a source is selected, it will output the M40 Pre-OUT. Via the M8 BUS IN connection, all M8 channels will be fed the source audio signal. The BUS LOOP will output
that same audio signal back to the M40 Main IN which feeds the M40 amplifier. If the BUS LOOP is not connected to the M40 Main
IN, the M40 will not output amplified audio.
1. Connect the M8 BUS LOOP to the M40 Main IN.
The BUS LOOP can also be used to add additional M8 amplifiers for additional rooms of amplified audio. Up to five total M8s can
be connected in this manner.
1. Connect the M8 BUS LOOP to the next M8 BUS IN. Repeat to connect up to five M8s (20 amplified rooms).
Power Mode Switch
For convenience, the M8 can be setup to turn ON/OFF automatically when the M40 is turned ON/OFF. There are two automatic
power modes: Audio Sensing (Auto ON) and Voltage Sensing (Trigger).
Audio Sensing
Requires no additional connections. When the M8 detects audio on any input it will automatically turn all channels ON.
1. Set the Power Mode Switch to Auto ON.
2. Set the Front Panel ON/OFF switch to the ON (in) position.
Voltage Sensing
Requires connection of a 3-30 V AC/DC control voltage. For the example shown, a 12V power supply can be connected to one
of the switched outlets on the M40 and connected to the M8 Trigger jack.
1. Connect a power supply to one of the M40 switched outlets. Connect the power supply to the M8 Trigger jack, (maintain
proper polarity).
2. Set the Power Mode Switch to Trigger. Set the Front Panel ON/OFF switch to the ON (in) position.
21
SYSTEM APPLICATIONS
BLU-RAY PLAYER
CD PLAYER
BLU-RAY PLAYER
CD PLAYER
LINE LEVEL OUT
L
R
V
S VIDEO
OUT
DIGITAL AUDIO OUT
OPTICAL COAXIAL
LINE LEVEL OUT
COMPONENT VIDEO OUT
Y
Pb
Line Level Audio/
Composite Video
OUT
L
Pr
DIGITAL AUDIO OUT
R
OPTICAL COAXIAL
Line Level Audio
OUT
HDMI OUT
Digital Optical Audio
OUT
PROFICIENT M80
2 ZONE A/V SURROUND RECEIVER
To Unswitched
110V AC Outlet
Zone 2
OUT
Stereo RCA-RCA
Patch Cable
M8
BUS IN
Set all Bridged
Switches to OFF
Set Odd # BUS
Channel Input Switches to BUS L
Even # Channels to BUS R
To Unswitched
110V AC Outlet
M8
Normal
Connections
16AWG (min) 2-Conductor
Stranded Speaker Wire
16AWG (min) 2-Conductor
Stranded Speaker Wire
Zone 2
Room 1
Zone 2
Room 2
Zone 2
Room 3
Zone 2
Room 4
Proficient
VCS60
Volume
Control
Proficient
VCS60
Volume
Control
Proficient
VCS60
Volume
Control
Proficient
VCS60
Volume
Control
Proficient C645 Ceiling Speakers
Proficient C645 Ceiling Speakers
Proficient C645 Ceiling Speakers
Proficient C645 Ceiling Speakers
Diagram 22 M8 Home Theater Plus Second Zone System
22
SYSTEM APPLICATIONS
Home Theater Plus Second Zone
The multizone system shown in Diagram 22 features the M8 when used to add multiple rooms of amplified audio to the Zone 2
OUT on an A/V Receiver, (in this case a Proficient M80). This system is a two zone system, meaning two different sources can be
played at the same time. The home theater is Zone 1 and can select any source connected to the M80. The M80 features a Zone 2
OUT that can output line level audio and composite or S-Video. (For purpose of example only the Zone 2 audio connections will
be detailed here. Please refer to the M80 Installation and User Guide for additional information.)
Note: The M80 allows connection of 5.1 or 7.1 surround speaker configurations. Those speakers are not shown in Diagram 22.
Please refer to the Owners Manual if using another brand receiver for information on connections/limitations.
M80 Source Connections
Audio/Video sources are connected to the M80 Receiver in a normal manner. In the theater zone, they are selected and played in
a normal manner using the front panel controls or a remote control. Sources are typically selected and controlled in Zone 2 using
an IR Remote via an IR repeater system. The selected sources can be the same in both zones or a different source in each zone. The
source selected by Zone 2 will play to all rooms in Zone 2.
The M80 features analog and digital audio and video inputs. Any of these inputs can be selected by the home theater. Zone 2 can
only select analog audio inputs, therefor any source that is to be played in Zone 2, must have analog audio connections to the
M80.
Bus In
The M8 is connected to the M80 Receiver Zone 2 OUT. The Zone 2 OUT is a fixed line level audio output that is connected to the
M8 BUS IN. The M8 BUS IN audio signal will output through any channel(s) that are set to BUS L (left) or BUS R (right).
1. Connect the M80 Zone 2 OUT to the M8 BUS IN.
2. Set the Channel Input switches for all channels that are to output the BUS IN to BUS L (left) or BUS R (right).
Bus Loop
Source selection and audio processing for the home theater zone and Zone 2 are completely independent. The M80 Zone 2 OUT is
a dedicated line level audio output. It is not necessary to feed the BUS LOOP back to the M80.
The BUS LOOP can be used to add additional M8 amplifiers for additional rooms of amplified audio to Zone 2. Up to five M8s can
be connected in this manner.
1. Connect the M8 BUS LOOP to the next M8 BUS IN. Repeat to connect up to five M8s (20 amplified rooms).
Power Mode Switch
For convenience, the M8 can be setup to turn ON/OFF automatically when the M80 is turned ON/OFF. There are two automatic
power modes: Audio Sensing (Auto ON) and Voltage Sensing (Trigger).
Audio Sensing
Requires no additional connections. When the M8 detects audio on any input it will automatically turn all channels ON.
1. Set the Power Mode Switch to Auto ON.
2. Set the Front Panel ON/OFF switch to the ON (in) position.
Voltage Sensing
Requires connection of a 3-30 V AC/DC control voltage. For the example shown, the M80 Trigger OUT (if not used for M80 subwoofer trigger) or a 12V power supply, connected to the switched outlet on the M80, can be connected to the M8 Trigger jack.
1. Connect a power supply to the M80 switched outlet. Connect the power supply to the M8 Trigger jack, (maintain
proper polarity); or connect the M80 Trigger OUT to the M8 Trigger jack with a mono mini-mini cable.
2. Set the Power Mode Switch to Trigger. Set the Front Panel ON/OFF switch to the ON (in) position.
Channel Mode/Speaker Connections
Set the Bridged switches to OFF for normal mode. Connect speakers using the normal mode/multiroom configuration.
23
SYSTEM APPLICATIONS
CD PLAYER
MUSIC SERVER
CD PLAYER
MUSIC SERVER
LINE LEVEL OUT
L
LINE LEVEL OUT
DIGITAL AUDIO OUT
R
L
OPTICAL COAXIAL
DIGITAL AUDIO OUT
R
OPTICAL COAXIAL
PROFICIENT M4 FOUR ROOM AUDIO CONTROLLER
EXPANSION PORTS
RS232
OUT
SOURCE 1
OUT
OUT
INPUTS
IR
L
L
PRE-OUT
L
R
SPKRS
R
NVC
ZONE 1
+L–
–R+
KEYPAD
SPKRS
+L–
SOURCE 6
L
IR
R
Riverside, CA. USA
Made in Taiwan
INPUTS
L
R
LOOP
LOOP
PRE-OUT
VC
NVC
VC/NVC Switch
Set to NVC
Zone 2
Pre-Out
R
NVC
IR OUT
ZONE 2
SPKRS
–R+
L
OUT
LOOP
LOOP
VC
IR OUT
KEYPAD
IR
R
M4
STATUS OUT: 0 to +12V
SOURCE 5
INPUTS
LOOP
PRE-OUT
VC
NVC
L
LOOP
HI
IR OUT
ON
OUT
LOOP
L
PRE-OUT
IR OUT
+L–
IR
R
COMMON
COMMON
LO
OFF
INPUTS
LOOP
VC
KEYPAD
L
LOOP
LOOP
R
OUT
SOURCE 4
INPUTS
IR
R
LOOP
L
SOURCE 3
INPUTS
IR
R
LOOP
CONTROL
PORT
DOORBELL / STATUS IN
PHONE (PAGE IN)
DATA I/O
SOURCE 2
FIRMWARE
UPGRADE
2
1
CONTACT CLOSURE
120V 60Hz 1.8A ~
FUSE: T5AL 250V
IR OUT
KEYPAD
ZONE 3
SPKRS
–R+
+L–
ZONE 4
–R+
VC/NVC Switch
Set to VC
Zone 4
Pre-Out
Stereo RCA-RCA
Patch Cables
Left Channel
to Line IN 5
Right Channel
to Line IN 7
Set Channel 1/2 & 3/4
Bridged Switches
to OFF
Set Odd #
Channel Input Switches to AUX L
Even # Channels to AUX R
Set Channel 5/6 & 7/8
Bridged Switches
to ON
Set Channel Input Switches
5-8 to LINE
M8
M8
AUX IN
Normal
Connections
16AWG (min) 2-Conductor
Stranded Speaker Wire
Zone 2
Room 1
16AWG (min) 2-Conductor
Stranded Speaker Wire
Zone 2
Room 2
Proficient
VCS60
Volume
Control
Bridged
Connections
Zone 4
Proficient
VCS60
Volume
Control
Proficient C850 Ceiling Speakers
Proficient C645 Ceiling Speakers
Proficient C645 Ceiling Speakers
Diagram 23 M8 Multizone Mixed Use Application
24
To Unswitched
110V AC Outlets
SYSTEM APPLICATIONS
Multizone Mixed Use
The multizone system shown in Diagram 23 features the M8 in multiple, simultaneous operating modes. The example system
shows a typical multizone system based around a Proficient M4 Multizone Controller. The M4 allows independent ON/OFF, source
selection and volume control by zone. Each zone features it’s own amplifier that typically gets connected to a dedicated pair of
speakers for that zone.
Note: The speakers that would typically be connected to Zones 1 and 3 are not shown in Diagram 23.
Each Zone on the M4 Multizone Controller features a dedicated zone Pre-OUT. It can be used, as shown in the example, to output
line level audio for the source selected in that zone to an external amplifier. The amp can be a high power two-channel amp or a
multichannel amp. The M8 can be both a high power and multichannel amp at the same time.
Adding Rooms to a Zone (Sub-Zone Expansion)
Zone 2 is a two-room suite that requires amplification and independent volume control in each room. (A single zone used rather
than independent zones, because the rooms are adjoining and the same source needs to be playing in both rooms.)
AUX In
The M4 Zone 2 Pre-Out is connected to the M8 AUX IN. The M8 AUX IN audio signal will output through any channel(s) that
are set to AUX L (left) or AUX R (right).
1. Connect the M4 Zone 2 Pre-OUT to the M8 AUX IN.
2. Set the M4 Zone 2 VC/NVC (volume control/no volume control) switch to NVC. This will fix the Zone 2 audio output. Volume for the individual rooms will be adjusted using the volume controls.
3. Set the M8 odd numbered Channel Input switches for all channels that are to output the AUX IN Left to AUX L (Channels
1/3). Set the even numbered Channel Input switches for all channels that are to output the AUX IN Right to AUX R (Channels 2/4).
Channel Mode/Speaker Connections
Set the M8 Bridged switches to OFF for Channels 1-4 for normal mode. Connect speakers using the normal mode/multiroom
configuration (normal connections/volume controls/volume controlled independently by room).
Adding a High Power Zone (M8 Bridged Mode)
Zone 4 is a large room using larger speakers with greater power handling and requires high power to fill the room to a good
sound level. Bridging Channels 5/6 and 7/8 creates a high power stereo output for Zone 4.
Line In
The M4 Zone 4 Pre-Out is connected to the M8 Bridged Channel 5/6 and 7/8 Line IN’s. The M4 Zone 4 audio signal will only
output through the bridged channels.
1. Connect the M4 Zone 4 Pre-OUT left channel to the M8 Channel 5 Line IN. Connect the M4 Zone 4 Pre-OUT right channel
to the M8 Channel 7 Line IN.
2. Set the M4 Zone 4 VC/NVC (volume control/no volume control) switch to VC. Volume will be adjusted using the M4 Zone
4 volume controls.
3. Set M8 Channel Input switches 5-8 to LINE IN.
Channel Mode/Speaker Connections
Set the Bridged switches for Channels 5/6, 7/8 to ON for bridged mode. Connect speakers using the bridged mode/multizone
configuration, (bridged connections/no volume control/zone volume controlled by the M4).
Power Mode Switch
Same as described in section: Home Theater Plus Second Zone/Power Mode Switch, immediately previous.
25
TROUBLESHOOTING
PROBLEM
SOLUTION
Power
Unit does not power up.
Device synced to Control Out does not turn ON.
a) Confirm Power Cord is plugged in to an unswitched 110V
AC Outlet.
b) If using audio sensing, confirm connection and audio
output from audio source. Also confirm ON/OFF button is
in the ON (in) position.
c) If using voltage sensing, confirm connection, polarity and
voltage from trigger device. Also confirm ON/OFF button is
in the ON (in) position.
d) Confirm connection, polarity and voltage from Control Out
to synced device.
Audio
No Sound From Speakers
a) Confirm volume is turned up and un-muted.
b) Confirm source is selected, turned on and playing.
c) Confirm Channel Input switches are set to proper positions.
d) Confirm source audio connections.
e) Confirm speaker connections.
f ) Confirm volume control connections, if used.
g) Confirm BUS IN connections, if used.
h) Confirm AUX IN connections, if used.
i ) Confirm Pre-Out/Main In Jumper connections (A/V Receiver
or preamp multiroom system).
26
SPECIFICATIONS
Audio Sections
Power Output/Channel (2 channels driven into 8 Ω; remainder @ 1/8 rated power)
THD (at rated power)
Power/Channel (2 channels driven into 4 Ω)
Power/Channel (bridged mode driven into 8 Ω)
Damping Factor (non-bridged mode)
Input Sensitivity (For rated power @ max VC)
Bus Loop Outputs
Frequency Response (@ 1 Watt @ 8 Ω)
Channel Separation
Cross Talk Between Channel Pair
S/N Ratio (Re: Rated Output, IEC A, Line Inputs 1k Ω)
35 Watts, 20Hz to 20kHz
<0.07%
55 Watts <0.1%THD @ 1kHz
110 Watts <0.5%THD @ 1kHz
>130, all channels
900 mVrms, All Inputs
900 mVrms, with 900 mVrms at Bus Inputs
9.5 Hz to 80 kHz +⁄- 1.5 dB
> 50 dB @ 10 kHz
> 75 dB @ 10 kHz
> 120 dB (VC 20 dB below FCW)
General
Control Sections
Auto ON Sensitivity / Time
Auto OFF Sensitivity / Time
Control Out Voltage, unloaded / 100mA load
Trigger Input ON Voltage / Time
Trigger OFF Voltage / Time
11 mV / 4 seconds
<10 mV / 5 minutes
12 VDC / 11.5 VDC
3-24 VDC / 4 seconds
2.0 VDC / 2 seconds
Power Consumption
Standby
No signal (idle)
At 1⁄8 Rated Power (4.38 Watts/Channel)
Line Ratings
Rear Panel Marked Power Consumption
Rear Panel Fuse
3 Watts
75 Watts
270 Watts
120 VAC
770 Watts
T10AL/250V
Dimensions
17-3⁄4” W x *5-1⁄4” H x 18-1⁄2” D
* 5-7⁄8” H, including feet
Weight
34 lbs
27
LIMITED 2-YEAR WARRANTY
Should you have any questions regarding this, or any other Proficient Audio Systems product, please call our service hotline at
877.888.9004. techsupport@proficientaudio.com
We are available to assist you every weekday, except holidays, between the hours of 7:00 a.m. and 5:00 p.m. PST.
Limited Two-Year Warranty
Proficient Audio Systems (“Proficient”) warrants to the original retail purchaser only (“you”) that this product will be free from
defects in materials and workmanship for a period of two years (the “Warranty Period”), subject to the limitations and exclusions
set out in this Limited Warranty. This warranty is not transferable to subsequent owners of the product. If you discover a defect in
material or workmanship within the Warranty Period, you can obtain warranty service by contacting Proficient during the Warranty
Period at 877.888.9004 or techsupport@proficientaudio.com or by sending the product to Proficient at 940 Columbia Avenue,
Riverside, CA 92507 or to the dealer from whom you purchased the product. Defective products must be shipped, prepaid and
insured, together with proof of purchase. Warranty service requests made without proof of date of purchase will be denied. Freight
collect shipments will be refused. It is preferable to ship this product in the original shipping
container to lessen the chance of transit damage. In any case, the risk of loss or damage in transit is
to be borne by the purchaser.
If, upon examination by Proficient it is determined that the unit is in fact defective, Proficient will, at its option:
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value. In some cases where a new model is substituted, a modification to the mounting surface may be required. If mounting
surface modification is required, Proficient assumes no responsibility or liability for such modification. Proficient will bear the
cost of returning the repaired or replaced product to you, freight prepaid. All replaced parts and product become the property
of Proficient Audio Systems. The foregoing is your sole and exclusive remedy for breach of warranty. If the product is not found
to be defective, Proficient will contact you to arrange for return of the product to you, at your expense.
EXCLUSIONS:
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repair or modification of the product by unauthorized dealers. This Warranty also excludes normal cosmetic deterioration caused
by environmental conditions.
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The foregoing warranties are exclusive and in lieu of all other expressed and Implied warranties. Proficient expressly disclaims all such other warranties, Including but not limited to implied warranties of merchantability, fitness for A particular
purpose and non-infringement. In no event will Proficient be liable for any incidental or consequential damages arising out of
the use or inability to use the product, even if Proficient has been advised of the possibility of such damages, or for any claim by
any other party. Notwithstanding the above, if you qualify as a “consumer” under the Magnuson-Moss Warranty Act, then you may
be entitled to any implied warranties allowed by law for the Warranty Period. Further, some states do not allow limitations on how
long an implied Limited Warranty lasts or allow the exclusion or limitation of consequential damages, so such limitations may not
apply to you.
ATTENTION TO OUR VALUED CONSUMERS:
To insure that consumers obtain quality pre-sale and after-sale support and service, Proficient products are sold exclusively
through authorized dealers. Proficient products are not sold online by Proficient or its authorized dealers, and this warranty is
VOID if the products have been purchased from any internet reseller. To determine if your Proficient reseller is authorized, please
call Proficient at 877.888.9004 or go to proficientaudio.com.
28
NOTES
29
NOTES
30
NOTES
31
Audio Systems
940 Columbia Avenue, Riverside, CA 92507
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1301-72800
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