Channel Plus MDS-6 User Manual
MDS-6 OWNERS MANUAL
Six-Source Six-Zone
TM
Music Distribution Amplifier
The MDS-6 is a six source, six zone music distribution amplifier that will fill your home with
the highest quality music of any system being built today. It offers unparalleled features
in a price range that is very affordable.
It features high quality 40 watt RMS Bi-Polar amplifiers per zone, with individual selection
and control of each source from each zone. Line outputs off of each zone easily allow
additional amplifiers or sub-woofer systems. With the MDS-6 you have independent IR
control of all of your audio sources from any room in the house. It also has an integrated
interface which allows for whole house paging in conjunction with your phone system, and
built-in front and back door chimes. A party mode allows you to select music source and
volume for all zones from one location.
CD players, satellite receivers, or any other equipment independently even though the
same manufacturer makes them and they respond to the same IR codes. Your MDS-6
system may be controlled by the MCS-1, single gang controller, or the MCS-2 dual gang,
programmable Controller for complete IR control of your audio equipment from any room
of your house.
Innovative, rugged and reliable, sleek and unobtrusive, the MDS-6 represents the finest,
uncompromising American engineering and design utilizing the highest quality components
and manufacturing available, all at a price you can live with.
A built-in IR routing system allows you to operate
600-221 rev A
DANGER
EXPOSURE TO EXTREMELY HIGH NOISE LEVELS MAY CAUSE A PERMANENT
HEARING LOSS. INDIVIDUALS VARY CONSIDERABLY TO NOISE INDUCED HEARING
LOSS BUT NEARLY EVERYONE WILL LOSE SOME HEARING IF EXPOSED TO
SUFFICIENTLY INTENSE NOISE FOR A SUFFICIENT TIME.
THE U.S. GOVERNMENT'S OCCUPATIONAL SAFETY AND HEALTH ADMINISTRATION
(OSHA) HAS SPECIFIED THE FOLLOWING PERMISSIBLE NOISE LEVEL EXPOSURES:
DURATION PER DAY IN HOURS
8
6
4
3
2
1
1/2 HR. or LESS
SOUND LEVEL db FLOW RESPONSE
90
93
95
97
100
103
110
ACCORDING TO OSHA, ANY EXPOSURE IN THE ABOVE PERMISSIBLE LIMITS COULD
RESULT IN SOME HEARING LOSS. EAR PLUGS OR PROTECTORS IN THE EAR CANAL
OR OVER THE EARS MUST BE WORN WHEN OPERATING THIS AMPLIFICATION
SYSTEM IN ORDER TO PREVENT A PERMANENT HEARING LOSS. IF EXPOSURE IN
EXCESS OF THE LIMITS AS PUT FORTH ABOVE, TO INSURE AGAINST POTENTIALLY
HARMFUL EXPOSURE TO HIGH SOUND PRESSURE LEVELS. IT IS RECOMMENDED
THAT ALL PERSONS EXPOSED TO EQUIPMENT CAPABLE OF INDUCING HIGH SOUND
PRESSURE LEVELS, SUCH AS THIS AMPLIFICATION SYSTEM, BE PROTECTED BY
HEARING PROTECTORS WHILE THIS UNIT IS IN OPERATION.
IMPORTANT
1. Read all safety and operating instructions before using this product.
2. All safety and operating instructions should be kept for future reference.
3. Obey all cautions in the operating instructions and on the back of the unit.
4. All operating instructions should be followed.
5. This product should not be used near water i.e. bathtub, sink, swimming
pool, wet basement, etc.
6. This product should be located so that its position does not interfere
with proper ventilation. It should not be placed flat against a wall or
placed in a built-in enclosure that will impede the flow of cooling air.
7. This product should not be placed near a source of heat, such as a
stove, radiator, or another heat producing amplifier.
8. Connect only to a power supply of the type indicated on the back of the
amplifier near the power supply cord.
9. Do not break off the ground pin of the power supply cord.
10. Power supply cords should always handled carefully. Never walk or place
equipment on power supply cords. Periodically check cords for cuts or
signs of stress, especially at the point where the cord exits the unit.
11. The power supply cord should be unplugged when the unit is unused
for long periods of time.
12. If this product is to be mounted in an equipment rack, rear support
should be provided.
13. Metal parts and vinyl covering may be cleaned with a damp rag.
14. Care should be taken so that objects do not fall and liquids are not spilled
into the unit through the ventilation ports or any other openings.
15.This unit should be checked by a qualified service technician if:
A. The power supply cord or plug has been damaged.
B. Anything has fallen or been spilled into the unit.
C. The unit does not operate correctly.
D. The unit has been dropped or the enclosure damaged.
THIS APPARATUS SHALL NOT BE EXPOSED TO
DRIPPING OR SPLASHING. NO OBJECTS FILLED
WITH LIQUIDS SUCH AS VASES SHALL BE PLACED
ON THE APPARATUS.
TO AVOID ELECTRICAL SHOCK, DO NOT
DISASSEMBLE. REFER SERVICING TO QUALIFIED
PERSONAL ONLY!
CAUTION
RISK OF ELECTRIC SHOCK
DO NOT OPEN
CAUTION:
TO REDUCE THE RISK OF ELECTRIC SHOCK, DO NOT
REMOVE CHASSIS. NO USER-SERVICEABLE PARTS
INSIDE. REFER SERVICING TO QUALIFIED SERVICE
PERSONNEL.
AVIS: RISQUE DE CHOC ELECTRIQUE-NE PAS OUVRIR.
THIS SYMBOL IS INTENDED TO ALERT THE USER TO THE PRESENCE OF
UNINSULATED DANGEROUS VOLTAGE WITHIN THE PRODUCTS ENCLOSURE THAT
MAY BE OF SUFFICIENT MAGNITUDE TO CONSITUTE A RISK OF ELECTRIC SHOCK
TO PERSONS.
THIS SYMBOL IS INTENDED TO ALERT THE USER TO THE PRESENCE OF IMPORTANT
OPERATING AND MAINTENANCE (SERVICING) INSTRUCTIONS IN THE LITERATURE
ACCOMPANYING THE UNIT.
16. The user should not attempt to service this equipment. All service work
must be done by a qualified service technician for warranty repairs.
CAUTION
THIS AMPLIFIER HAS BEEN DESIGNED AND CONSTRUCTED TO PROVIDE
ADEQUATE POWER RESERVE FOR PLAYING MODERN MUSIC WHICH MAY
REQUIRE OCCASIONAL PEAK POWER. EXTENDED OPERATION AT
ABSOLUTE MAXIMUM POWER IS NOT RECOMMENDED SINCE THIS
COULD DAMAGE THE ASSOCIATED LOUDSPEAKER SYSTEM. PLEASE BE
AWARE THAT MAXIMUM POWER CAN BE OBTAINED WITH VERY LOW
SETTINGS OF THE MASTER VOLUME CONTROLS IF THE INPUT SIGNAL
IS VERY STRONG.
Multiplex Technology Inc., 3001 Enterprise St. Brea, CA 92821
TM
Tel. 800-999-5225 Fax 714-996-4900
TM
MDS-6 Music Distribution System
A
Active On
B C
Power
A.) Power Switch - Left on, the MDS-6, when not being used, will go into a sleep mode, ready to
turn back on when an input signal is applied from any of the six sources. In the off position, the unit
will not function.
B.) On LED - With the power switch on, this LED indicates that the unit is powered up and awake.
C.) Standby LED - This LED indicates that the unit is plugged into the wall.
ZONE 1
LEFT
L R
LINE OUT LINE OUT LINE OUT LINE OUT LINE OUT LINE OUT
IN OUT
SOURCE 1
RIGHT
- +
IN OUT
SOURCE 2
- +
ZONE 2
LEFT
LR
IN OUT
SOURCE 3
RIGHT
- +
- +
INPUT SOURCES ZONE CONTROLLERS
IN OUT
SOURCE 4
LINE OUT / SPEAKER OUT
ZONE 3
LR
LEFT
- +
IN OUT
SOURCE 5
RIGHT
- +
LR
IN OUT
SOURCE 6
ZONE 4
LEFT
RIGHT
- +
- +
L
MASTER INDIVIDUAL ZONES
OUT
R
ZONE 5
LR
IN123456
LEFT
- +
RIGHT
- +
LR
ZONE 6
1 81 81 81 81 81 81 8
DOORBELL
PAGE
LEFT
RIGHT
AUDIO
- +
INPUT
IR REMOTE OUTPUTS
SWITCH
INPUT
SG +5v G +5v G
1
SOURCE OUTPUT
A2B3C4D
SUM OUTPUT
- +
20W/8 OHM X220W/8 OHM X220W/8 OHM X220W/8 OHM X220W/8 OHM X220W/8 OHM X2
1 8
STATUS
UNITONTRIG
A
B
ON
MODEL MDS-6
TM
MULTI-ZONE
120V 50/60Hz 300W
Multiplex Technology Inc.
MADE IN CHINA DESIGNED IN
USA
CAUTION
RISK OF ELECTRIC SHOCK
DO NOT OPEN
AVIS:
RISQUE DE CHOC ELECTRIQUE-NE PAS OUVRIR.
WARNING:
SHOCK HAZARD - DO NOT OPEN.
G
H IFED
D.) Output Section - This section is the output section. It provides the speaker terminals and line
outputs.
E.) Distribution Section - This section is the line level input/output section. It provides the inputs from
your sources and the outputs for stacking additional units.
F.) Controller Section - This section is where the wall controller in each zone connect. This section
includes the party mode master controller input.
G.) Paging/Control Voltage Section - This section is the paging and control voltage input and output
section. It provides the inputs from your phone system and door bells (front and back). It also has a
control voltage input and output for the unit controlling or being controlled by additional equipment.
H.) Infrared (IR) Section - This is the IR section. It provides outputs for the IR emitters.
I.) AC Power Cord - This is where the AC power cord connects to the unit. It is a detachable 3 prong
I.E.C. plug.
Page 1
OUTPUT SECTION
ZONE 1
LEFT
L R
LINE OUT LINE OUT LINE OUT LINE OUT LINE OUT LINE OUT
- +
RIGHT
- +
ZONE 2
LR
LEFT
- +
RIGHT
- +
LR
LINE OUT / SPEAKER OUT
ZONE 3
LEFT
- +
RIGHT
- +
LR
ZONE 4
LEFT
- +
RIGHT
- +
ZONE 5
LR
LEFT
- +
RIGHT
- +
ZONE 6
LR
1111111111111111111111111111111111111 2
1.) Line Outputs (Left & Right) - These are dual RCA line outputs to go to additional amplifiers or
to powered sub-woofers. The white one is for left channel and the red one is for right channel. These
outputs will react to the volume controllers for each zone. Any changes made to these will follow
through to these outputs.
If you need additional speakers, say for a deck or large family room and require more power than
onboard, simply take these outputs and plug into the larger amp. If you want to run sub-woofers in
a zone, you can use powered sub-woofer systems or an additional amp to power them as in the above
explanation.
2.) Speaker Connectors - These connectors are where the speaker connections for each zone are
made. First determine which individual wire is ground (negative) and the other being the signal
(positive) of your speaker wire. The detachable speaker connectors are labeled as L- (left negative);
L+ (left positive); R- (right negative); R+ (right positive). There are small set screws on this connector
to allow solderless connections to be made. We suggest using a straight blade Jewelers screwdriver
to easily make this connection.
These speaker outputs are rated at 20 watts RMS a side into an 8 ohm load. Stay within that ohm
rating. This will be more than adequate power for most of the in-wall speakers on the market.
LEFT
- +
20W/8 OHM X220W/8 OHM X220W/8 OHM X220W/8 OHM X220W/8 OHM X220W/8 OHM X2
RIGHT
- +
These connectors are then duplicated for the additional five zones and are identical in nature.
DISTRIBUTION SECTION
INPUT SOURCES
L
IN OUT
SOURCE 1
34
5
IN OUT
SOURCE 2
6
IN OUT
SOURCE 3
IN OUT
SOURCE 4
IN OUT
SOURCE 5
IN OUT
SOURCE 6
3.) Source #1 Left Input (White) - This RCA input will accept any standard line level source such
as CD, Receiver, Tuner, DSS, TV audio and more. It connects the left channel.
4.) Source #1 Right Input (Red) - This RCA input will accept any standard line level source such
as CD, Receiver, Tuner, DSS, TV audio and more. It connects the right channel.
5.) Source #1 Left Output (White) - This RCA output will send a line level signal out, an exact copy
of that source signal, from the signal plugged into the left channel of source #1 inputs. It is used for
stacking additional MDS-6 units together. This provides an ultra clean audio distribution amplifier for
signal clarity.
R
6.) Source #1 Right Output (Red) - This RCA output will send a line level signal out, an exact copy
of that source signal, from the signal plugged into the right channel of source #1 inputs.
These connectors are then duplicated for the additional five sources and are identical in nature.
Page 2
CONTROLLER SECTION
ZONE CONTROLLERS
MASTER INDIVIDUAL ZONES
OUT
IN123456
1 8
1 81 81 81 81 81 81 8
8
7
9
7.) Master Output - This connector allows the party mode to apply to multiple units if additional
units are added.
8.) Master Input - This is for the party mode controller. This controller should be located near the
unit and sources. It will override all zone controllers and select a source which will then play in all
zones. This mode is used for playing the same background music in all zones such as during a party.
The individual wall controllers still have the ability to select a different source after the party mode is
engaged. It uses a standard 8 pin RJ-45 connector.
9.) Individual Zone #1 Controller - This connector hooks up the wall controllers used in zone #1.
The signals from this wall controller control all the functions in zone #1. It uses a standard 8-pin
RJ-45 connector.
This connector is duplicated for the remaining 5 zones and function exactly the same.
PAGING/VOLTAGE CONTROL SECTION
PAGE
AUDIO
INPUT
S G +5v G +5v G
10 11
DOORBELL STATUS
SWITCH
A
INPUT
SG
12
UNITONTRIG
B
SG
13 14
ON
15
10.) Audio Inputs - This is an audio sensing circuit and accepts the signal from an external phone
system, or a pre-amplified microphone (i.e.: a mixer output), that has the capability of sending a page
signal from the master phone unit. The signal from this phone system will mute whatever source is
playing in all zones and allow the person speaking to page into all zones simultaneously. When the
signal is disengaged, the music will return to the previous level. Even zones that are not currently
on will open and allow the announcement to be made. Inside the unit is a master DIP type switch
which allow the installer to turn off the paging and doorbell override. This is especially suited for a
nursery. Pin 1 is for signal and pin 2 is for ground.
11.) Switch Inputs - This input is designed for older systems like intercoms that require a push to
talk latch mode contact before the audio signal can pass through. This is a hard bypass of the
audio sources. This can act as a whole house mute as well.
12.) Doorbell A Input - This input takes the signal from the contact closers from the front doorbell
transformer. When engaged, the source signal mutes and a distinctive chime (on board) plays through
the speakers. It will even play through zone speakers that arent on unless locked out.
13.) Doorbell B Input - Same as above but with a separate distinctive chime sound so you can
differentiate between the doors.
14.) Control Voltage Output - This output sends a constant 5 volt D.C. signal out to trigger ancillary
equipment when the unit is powered up. When the unit goes into the sleep mode, this voltage stops.
15.) Control Voltage In - This allows an external sub system that sends a control voltage output to
this system to power up the unit from the sleep mode. This signal can be from 5 to 12 volts D.C.
The front panel power switch must be on for this to work.
Page 3
INFRARED (IR) SECTION
AVIS: RISQUE DE CHOC ELECTRIQUE-NE PAS OUVRIR.
WARNING: SHOCK HAZARD - DO NOT OPEN.
16
17
IR REMOTE OUTPUTS
1
SOURCE OUTPUT
A2B3C4D
SUM OUTPUT
18
16.) Source Output #1 through 4 - This 1/8 2 conductor jack is for the IR emitters and are locked
source specific. This is useful in for instance, if you have 2 or more of the same brand CD player,
since the same IR command will work on both, this ONLY sends the IR command to this particular
source. Nearly any brand of emitter will work. There are four source specific IR jacks.
This connector is duplicated for the remaining 3 outputs and function exactly the same as the first
one.
17.) Sum Output #1 through 4 - This 1/8 2 conductor jack is for the IR emitters and are summed
across the IR buss. This will allow normal operation of different components that dont share the same
IR commands. There are four sum output IR jacks.
This connector is duplicated for the remaining 3 outputs and function exactly the same as the first
one..
18.) AC Power - This is where the AC power cord connects to the unit. It is a detachable 3 prong
I.E.C. plug. Never remove the ground lug on the plug or electrical shock and damage to the unit could
result.
INSTALLATION NOTES
RJ-45
CLIP
PLUG
TO MDS-6
8
7
6
5
4
3
2
1
DATA LINE C
DATA LINE B
DATA LINE A
+5 VOLT D.C.
GROUND
IR SIGNAL
CLONE
STANDBY
TO MCS-1 or MCS-2
1
2
RJ-45
3
4
5
6
7
PLUG
8
CLIP
WIRING DIAGRAM FOR REMOTE ROOM CONTROLLERS
# Use Category 5 8-conductor cable. It is not necessary for it to be shielded but be careful with
your cable runs. Avoid running a tight parallel with AC wiring. Be careful if stapling the wire to secure
it in place.
# Use high quality RJ-45 connectors and make sure you use a high quality crimp tool. The crimp
of the RJ-45 connectors is crucial in making the system work properly.
# Avoid tight or sharp turns near the ends of the RJ-45 connections to the controller or main
units. This can put excessive strain on already small wires.
# Note when stacking multiple units: Audio sources connect via the distribution outputs. Wall
controllers combine via the Master Controller Out jack. Make a short jumper and connect to the second
units Master Controller In jack to allow the party mode master controller to access all zones. For
the IR Emitters, we strongly suggest using a Y adapter for the emitters that attach directly from the
sources and then to the second units IR outputs. This allows the source specific functionality to be
utilized by the second MDS-6. An additional controller can be run per zone by using a RJ-45 Y
adapter before the main unit.
Page 4
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