HTD MC-66 Multi-Zone User manual

Whole-House Audio Control
Owner’s Manual
MC-66 Multi-Zone Controller
&
MCA-66 Multi-Zone Controller/Amplifier
Home Theater Direct
Toll free: 866-HTD-AUDIO (483-2834)
www.htd.com
[email protected]
© Copyright Home Theater Direct, Inc.V.07.06.17

CAUTION
RISK OF ELECTRIC SHOCK
DO NOT OPEN
The lightning ash with arrowhead symbol, within an equilateral triangle, is intended to alert the user to the
presence of un-insulated dangerous voltage within the product’s enclosure that may be of sufcient magnitude to
constitute a risk of electrical 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 this appliance.
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 adhered to.
Heed Warnings
All of the warnings on the appliance and in the operating 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, etc.
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. Never place the appliance in a
conned space such as a bookcase, or built-in cabinet, unless proper
ventilation is provided.
Heat
The appliance should be situated away from heat sources such as
radiators, heat registers, stoves, or other appliances that produce
heat. Position the appliance at least 4” away from any heat-produc-
ing amplier, including HTD ampliers.
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 ap-
pliance.
Grounding or Polarization
Precautions should be taken so that the grounding or polarization
means of an appliance is not defeated.
Power Cord Protection
Route the power cord so that it is not likely to be walked on or
pinched by items placed upon or against them, paying particular
attention to the plugs, receptacles, and the point where the cord
exits from the appliance.
Cleaning
Unplug the appliance from the wall outlet before cleaning. Do not
use liquid cleaners or aerosol cleaners. Use a cloth lightly damp-
ened with water for cleaning the exterior of the appliance only.
Non-Use Periods
The power cord of the appliance should be unplugged from the
outlet when left unused for long periods 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 qualied personnel when:
a) the power supply cord or the plug has been damaged
b) objects have fallen, or liquid spilled into the appliance
c) the appliance has been exposed to rain
d) the appliance does not appear to operate normally or exhib-
its 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 qualied service personnel.
Product Servicing
If your system fails to operate properly, please contact HTD
directly for further assistance at 1-866-483-2834.
Additional information, including detailed specications for each
model, can be found on our website, www.htd.com. Thanks
again for choosing Home Theater Direct!
Warranty
All HTD electronics carry a two-year parts and labor warranty. Warranty registration occurred automatically at
the time your order was placed. There is no need to complete or mail in additional paperwork.
Warning - To reduce the risk of re or shock, do not expose this appliance to rain or moisture.
Caution - To reduce the risk of re or shock, do not remove the cover or back. No user serviceable parts inside.
Refer servicing to qualied service personnel.
Caution - To prevent electric shock, match wide blade of plug to wide slot, fully insert.
Safety instructions for the MC-66 & MCA-66
1

1. Lisez ces instructions.
2. Conservez ces instructions.
3. Respectez tous les avertissements.
4. Suivez les instructions.
5. Ne pas utiliser cet appareil près de l’eau.
6. Nettoyez uniquement avec un chiffon humide.
7. Ne pas obstruer les ouvertures de ventilation. Installer conformément aux instructions du fabricant.
8. Ne pas installer près de sources de chaleur telles que des radiateurs, registres de chaleur, poêles ou
autres appareils (incluant les amplicateurs) qui produisent de la chaleur.
9. Ne pas contourner le dispositif de sécurité de la che polarisée type. Une che polarisée possède deux
lames dont une plus large que l’autre. La lame large est fournie pour votre sécurité. Si la che fourniene
rentre pas dans votre prise, consultez un électricien pour remplacer la prise obsolète.
10. Protégez le cordon d’alimentation ne soit piétiné ou pincé, en particulier au bouchon, prises de courant,
et au point où ils sortent de l’appareil.
11. Utilisez uniquement des xations / accessoires spéciés par le fabricant.
12. Utilisez seulement avec un chariot, un support, un trépied, une console ou table spécié par le fabricant
ou vendu avec l’appareil. Lorsque vous utilisez un chariot, soyez prudent lorsque vous déplacez
l’ensemble chariot / appareil pour éviter les blessures en cas de chute.
13. Débranchez cet appareil durant les orages ou si inutilisé pendant de longues périodes de temps.
14. Conez toute réparation à un personnel qualié. Une réparation est nécessaire lorsque l’appareil a été
endommagé de quelque façon que ce cordon d’alimentation ou la che est endommagé, du liquide a
été renversé ou des objets sont tombés dans l’appareil, l’appareil a été exposé à la pluie ou à l’humidité,
ne fonctionne pas normalement , ou s’il est tombé.
AVERTISSEMENT: Pour réduire le risque d’incendie ou un choc électrique,
ne pas exposer cet appareil à la pluie ou à l’humidité. L’appareil ne doit pas
être exposé au ruissellement ou aux éclaboussures et aucun tobjet rempli de
liquide, comme des vases, ne doit être placé sur l’appareil
Consignes de sécurité importantes
2

3
This Page is Intentionally Blank

4
If you have any questions, we can be reached at...
[email protected] or toll free 1-866-HTD-AUDIO (483-2834)
Whole-House Audio Control Owner’s Manual
Introduction to the MC-66 & MCA-66 Whole-House Audio Control System
The MC-66 is a six source, six zone stereo audio controller that easily allows you to distribute sound throughout
your home. The MCA-66 includes these same features plus a built-in 12-channel amplier. Both units are controlled
by the keypad(s) located within each zone and/or with HTD’s Valet app on iPhone and Android devices.
With the MC-66 & MCA-66, each of the six zones independently selects from up to six centrally located sources.
This means each zone can play a completely different source. Also, from any keypad, you can easily turn on
all zones to the same source. We refer to this as “party mode”. You can also turn off all zones with the press of
a single button. Tone control (bass/treble) and balance allows each zone to be independently set for the best
sound in that zone. We have also developed the Valet Home Control app (for iPhone and Android devices) which
expands this functionality providing wireless control.
The controller, keypads and Valet Home Control app have been designed to make both installation and every-day
use intuitive and user friendly.
If, after reading this manual, you have any questions, please call us toll free at 1-866-483-2834 during business
hours (M-F 8am-6pm CST). We’re here to help and to make sure you are getting the most out of your new whole-
house audio system.
IMPORTANT WARNINGS AND HELPFUL TIPS
Please note that while we refer to Cat5e throughout this manual, Cat5 and Cat6 can also be used with
equal effectiveness.
1. Never connect or disconnect Cat5e cable from the keypad or controller while the controller is
powered on.
2. Never connect or disconnect speaker cable from a speaker or the controller while the
controller is powered on.
3. ONLY TERMINATE CAT5e CABLES WITH RJ-45 CONNECTORS USING THE 568-A OR
568-B STANDARD (see page 17). You cannot simply connect the 8 wires in the same order
at both ends. Cat5e cable consists of 4 twisted pairs of cable and some signals are sent down
a particular twisted pair in order to prevent cross-talk. Failure to follow one of the standards will
cause the system to act erratically or be entirely inoperable.
Note: Because 568-B is the more recent standard, we encourage you to use it instead of
568-A.
4. When connecting (daisy-chaining) more than one keypad into the SAME zone, each keypad
must also have a unique combination of shorting bars installed. Each keypad includes 2 shorting
bars already installed - this represents one of the four possible combinations. Removing only the
left shorting bar is a second combination; removing only the right is a third; and removing both
shorting bars is a fourth combination.

MC-66 Multi-Zone Controller
MCA-66 Multi-Zone Controller/Amplier
Power
Multiroom Controller/Amplifier MCA-66
Protection
Zone Status
12 3 4 5 6
FUSE T8A/250V
AC 120V~60Hz
Power Consumption: 610W
IR OUT IR IN
SOURCE INPUT
RS232 INTERFACE
KEYPAD PORTS
1 2 3 4 5 6
L
R
43
21
5 6
12V/DC
TRIGGER
OUTIN
L R
PRE OUT
ZONE1
FIXED VARIABLE
L R
PRE OUT
ZONE2
FIXED VARIABLE
L R
PRE OUT
ZONE3
FIXED VARIABLE
L R
PRE OUT
ZONE4
FIXED VARIABLE
L R
PRE OUT
ZONE5
FIXED VARIABLE
L R
PRE OUT
ZONE6
FIXED VARIABLE
SPEAKER OUTPUT 8 OHMS/20W
RIGHTLEFT RIGHTLEFT RIGHTLEFT RIGHTLEFT RIGHTLEFT RIGHTLEFT
Included with MC-66
(1) Power Cord
(6) RCA Cables
(1) Trigger Cable
Included with MCA-66
(1) Power Cord
5
Product Features
Power
Multiroom Controller MC-66
Zone Status
123456
FUSE T1A/250V
AC 120V~60Hz
Power Consumption: 70W
IR OUT IR IN
SOURCE INPUT
RS232 INTERFACE
KEYPAD PORTS
123456
L
R
43
21
56
12V/DC
TRIGGER
OUTIN
ZONE 1
LR LR LRLR LRLR
ZONE 2 ZONE 3 ZONE 4 ZONE 5 ZONE 6
VARIABLE
VARIABLE
FIXED
FIXED
Power
Multiroom Controller MC-66
Zone Status
1 2 3 4 5 6
Power button and
blue indicator light Zone status lights (blue) indicate when a
zone is active
IR Repeater Outputs (Con-
nect to single or dual IR emit-
ters to pass IR signal to other
audio components)
Stereo pre-amp outputs for each zone
(xed and variable) connect to separate
12-channel amplier.
RJ45 connectors
(for connecting Cat5e
cable to keypads)
Trigger In/Out
(6) Gold plated
stereo RCA-type inputs
RS232 port
Convenient snap-in speaker cable connectors (each ampli-
er is stable to 4 ohms so you can safely connect up to four
8 ohm speakers per zone - 2 per channel)
Amplier Protection Lights (red), if lit, may indicate
a problem exists.
IR Repeater Outputs (Con-
nect to single or dual IR emit-
ters to pass IR signal to other
audio components)
Stereo pre-amp outputs for each zone (switchable be-
tween xed and variable) connect to separate amplier
(not required for basic applications).
RJ45 connectors
(for connecting Cat5e
cable to keypads)
Trigger In/Out
(6) Gold plated
stereo RCA-type inputs
RS232 port
Power button and blue indicator light
Zone status lights (blue) indicate when a
zone is active
IR input (connect
to IR receiving eye)
IR input (connect
to IR receiving eye)

KC7 Keypad Control*
(Optional)
KC6 Keypad Control
(Optional)
*Throughout the owner’s manual an image of the KC6 keypad
is used in various situations. It should be known that in all
such situations a KC7 can be used in place of a KC6.
Included with MCA-66
(1) Power Cord
Sold Separately
RC6 Remote Control
Product Features (CONT.)
MUTE
Back-lit, soft touch buttons
Back-lit, soft touch
buttons - Screen
and buttons will
remain lit for 30
seconds at which
point the lights will
extinguish until any
button is pressed.
During setup
mode, use these
buttons to set
treble, bass, and
balance for each
zone
Source buttons-
Used to select
source and to
change options in
the setup menu.
Volume (up/down)
- Used to adjust
volume level. Also
both buttons can
be pressed simul-
taneously to enter
setup mode.
Volume
(up/down) Press
both and hold for
three seconds to
enter setup.
IR receiving eye passes IR signals to other
centrally located equipment (use a universal
remote to control all of your equipment)
IR receiving eye passes IR signals to other
centrally located equipment (use a universal
remote to control all of your equipment)
Power Button -
Multi-function but-
ton used to power
on, power off, and
mute the keypad.
Can also be used
to power off all
keypads.
Power Button -
Multi-function but-
ton used to power
on, power off, and
mute the keypad.
Can also be used
to power off all
keypads.
Volume
indicator lights
Select from
up to six centrally
located sources
LCD Screen - displays selected source,
volume level, and setup menu options.
Two RJ45 con-
nectors - Use
one for connect-
ing Cat5 cable
(or Cat5e or
Cat6) to control-
ler. Optionally,
use the other
RJ45 connector
to add a second
keypad in the
same zone.
“Screwless” Decora
style frame (includ-
ed) snaps in place
for a professional
appearance.
“Screwless” Decora
style frame (included)
snaps in place for a
professional appear-
ance.
IR emitters are used in conjuction with the KC6 (or
KC7) keypad and any centrally located source’s IR
remote to control that source from any zone with a
keypad. See the Emitter section in this manual for
more information.
Allows you to control audio com-
ponents located near the Mid-level
system, even when hidden inside of a
cabinet or closet.
Point at any keypad to select
the source and to control the
volume level in that zone.
12
4
65
3
Vo l
Vo l
Power/Mute
V o l
V o l
Power/Mute
SRC2
59
Source
6
12
4
65
3
Vo l
Vo l
Power/Mute
IR-RX2
IR-RX2-3
IR-RX2-T
IR-RX2-IW
Double
Emitter Single
Emitter
Two RJ45 connec-
tors - Use one for
connecting Cat5 cable
(or Cat5e or Cat6) to
controller. Optionally,
use the other RJ45
connector to add a second keypad in the
same zone.

How to Connect
7
MC-66 Connection Overview (showing one zone connected)
Keypad
Shielded Stereo Cable
Cat5e Cable
Speaker Cable
Zone 3
Speakers
Zone 1
Zone 1
Zone 1-6
Multi-channel
Amplier
MC-66
Zone 6
Zone 6
12
4
65
3
V o l
V o l
MCA-66 Connection Overview (showing one zone connected)
Zone 3
Keypad
Figure 2
Figure 1
Speakers
Zone 1
Zone 1
Zone 6
Zone 6
MCA-66
Connecting the Keypads
**Be sure to power off the controller before disconnecting or connecting Cat5e cables or speaker cables.**
The KC6 and KC7 keypad have been designed specically to work with the MC-66 and MCA-66 (hereafter referred to
as “controller”). The KC6 and KC7 are not suitable for use with other systems.
Keypads should be connected directly to the controller via Cat5e (or Cat6) cable with RJ-45 connectors at both ends
of the cable. There are two RJ-45 connectors on the back of each keypad. Either RJ-45 connector can be used. The
other connector is used for connecting up to two total keypads in each zone. This is discussed in more detail later in
this section. Once connected, keypads will control the zone in which the Cat5e cable is inserted on the controller.
Daisy Chaining Keypads - It is possible to connect a maximum of two keypads into any one zone by “daisy-chaining”
the keypads together using the extra RJ-45 connector on the back of each keypad. This is only done for convenience
as adjusting one keypad will adjust the other keypad in that same zone. If you want to separately control the volume of
multiple pairs of speakers in one zone, you will need to set up “sub-zones” (see Sub-zones - pg. 9).
Note: The KC6 and KC7 cannot be “daisy-chained” to those from another zone. “Daisy chaining” must be accom-
plished by using either two KC6’s (daisy-chained to one another) OR two KC7’s (daisy-chained to one another).
Please note that the system will only operate properly if the RJ-45 connectors have been attached using either
the 568-A or 568-B standard diagram towards the end of this manual.
Cat5e Cable
Speaker Cable
12
4
65
3
V o l
V o l

How to Connect
8
Using the double-sided foam tape that is included with the KC6/KC7 keypad:
We have included two pieces of double sided foam tape to use as a “spacer” if needed between the drywall and the metal
frame of the KC6/KC7 keypad. This will enable to you to bring the keypad “off” the wall if needed so that once the frame
of the keypad is placed onto the keypad the frame will sit ush to the keypad and the wall. This is often only used for pre-
install (or new work) electrical boxes that are recessed behind the drywall. If you have an “old work box” then you will
likely not need the double sided tape as the keypad’s frame will be slightly off the surface of the drywall due to the “old
work box” having a “lip” that sits on the front of the drywall already.
1.Cut hole for
KC6/KC7
2.Apply tape
directly to
drywall
3.Install KC6/KC7
4.Install KC6/KC7
plate
5. Check distance between KC6/KC7
plate and Drywall
Vol
Vol
Power/Mute
Source
Vol
Vol
Power/Mute
Source
Vol
Vol
Power/Mute
Source
Vol
Vol
Power/Mute
Source
1.Cut hole for
KC6/KC7
2.Apply tape
directly to
drywall
3.Install KC6/KC7
4.Install KC6/KC7
plate
5. Check distance between KC6/KC7
plate and Drywall
Vol
Vol
Power/Mute
Source
Vol
Vol
Power/Mute
Source
Vol
Vol
Power/Mute
Source
Vol
Vol
Power/Mute
Source
1.Cut hole for
KC6/KC7
2.Apply tape
directly to
drywall
3.Install KC6/KC7
4.Install KC6/KC7
plate
5. Check distance between KC6/KC7
plate and Drywall
Vol
Vol
Power/Mute
Source
Vol
Vol
Power/Mute
Source
Vol
Vol
Power/Mute
Source
Vol
Vol
Power/Mute
Source
1.Cut hole for
KC6/KC7
2.Apply tape
directly to
drywall
3.Install KC6/KC7
4.Install KC6/KC7
plate
5. Check distance between KC6/KC7
plate and Drywall
Vol
Vol
Power/Mute
Source
Vol
Vol
Power/Mute
Source
Vol
Vol
Power/Mute
Source
Vol
Vol
Power/Mute
Source
Connecting the Speakers to the MCA-66
The easy-connect speaker cable (green) connectors can be pulled out from the controller for easy cable connection,
and then plugged back into the controller (See Figure 3).
**Be sure to power off the controller before disconnecting or connecting Cat5e cables or speaker cables.**
Using the speaker cable connectors (MCA-66 only) Figure 3
FUSE T8A/250V
AC 120V~60Hz
Power Consumption: 610W
IR OUT IR IN
SOURCE INPUT
RS232 INTERFACE
KEYPAD PORTS
1 2 3 4 5 6
L
R
43
21
5 6
12V/DC
TRIGGER
OUTIN
L R
PRE OUT
ZONE1
FIXED VARIABLE
L R
PRE OUT
ZONE2
FIXED VARIABLE
L R
PRE OUT
ZONE3
FIXED VARIABLE
L R
PRE OUT
ZONE4
FIXED VARIABLE
L R
PRE OUT
ZONE5
FIXED VARIABLE
L R
PRE OUT
ZONE6
FIXED VARIABLE
SPEAKER OUTPUT 8 OHMS/20W
RIGHTLEFT RIGHTLEFT RIGHTLEFT RIGHTLEFT RIGHTLEFT RIGHTLEFT
Left Right
+-+
-
+--+
Left Right
Easy-connect speaker
cable connector

9
How to Connect (CONT.)
Strip each cable approx. 1/4” and tightly twist the copper wires. Loosen the connection points on the easy-connect speaker
cable connectors as necessary using a screwdriver. Insert the cables using the following standards and then re-tighten the
connection points:
When using 2-conductor Cables:
Red = positive
Black = negative
When using 4-conductor Cables:
Red = right positive
Black = right negative
White = left positive
Green = left negative
Note: make sure that there isn’t too much exposed wire and that all connections are tidy. Any stray wires touching neighbor-
ing connectors or wires could cause the unit to go into “protect mode”.
Important Information about the MCA-66 Controller/Amplier
The MCA-66 includes a built-in 12 channel amplier. This is essentially 6 stereo ampliers, one stereo amplier per zone.
Each stereo amplier includes its own signal sensing capability so that if the keypad is turned off, or if the source currently
selected by the keypad is not outputting a signal, the amplier in that zone will automatically go into stand-by mode. As soon
as a signal is detected, the controller/amplier will power up. This keeps the entire amplier operating as efciently as pos-
sible.
The ampliers are designed to be 4 ohm stable. This allows you to connect up to two pairs of 8 ohm speakers (in parallel)
into each zone. (note: all HTD brand speakers are 8 ohms). The easy-connect speaker cable connectors supplied for each
zone can accept up to 14-gauge cable (the lower the gauge number the thicker the cable, e.g. 14-gauge cable is thicker than
16).
Connecting the Speakers: MC-66 (seperate amplier required)
The MC-66 does not include a built-in amplier so you need to add a separate multi-channel amplier. A 12-channel amplier
such as the DMA-1240 or DMA-1275 is a good match because these ampliers can easily be set up for 6 stereo zones.
Connect each zone to the multi-channel amplier using stereo RCA-type patch cables as shown in Figure 4. In most cases,
you should set the Fixed/Variable switch to Variable. This allows the keypad to control the volume level in that zone. Select-
ing the “Fixed” switch position is recommended when you set up multiple sub-zones (see Sub-zones, pg. 9) in one zone
where each of the pairs of speakers in that zone are independently controlled with attenuators (volume controls) sold sepa-
rately.
**Speaker cables are connected to the multi-channel amplier as instructed by the owner’s manual for that amplier.**
Connecting Source Components (see gure 6)
Any audio component with a stereo analog RCA-type output can be connected directly to one of the 6 Source Inputs located
on the back of the controller using RCA-type shielded stereo patch cables (not included).
For audio sources that only have a digital or optical out, an HTD Digital-to-Analog Converter (DAC) can be used to convert a
digital signal to an analog signal.
Some audio sources may only offer a 3.5mm (headphone jack output). For these devices a simple 3.5mm to rca converter
cable can be used.
Sub-Zones
A sub-zone is an area that has independent volume control but that is forced to listen to the source selected by the keypad
in the primary zone. As an example, you might have a kitchen and dining area that are located side-by-side. In this case, you
will often choose to have the kitchen be the primary zone with volume controlled by the keypad and the dining area’s volume
controlled by a more traditional rotary or slide-type volume control. Depending on your situation, you may or may not need to
add more amplier channels than that already provided by the multi-channel amplier.
Sub-zones are extensive subjects on their own. The large amount of variables and customization that can be required to cor-
rectly wire/control sub-zones make them a difcult subject to cover here. As such, if you would like more information on how
you can setup and control a sub-zone in your whole home audio project, please contact HTD at [email protected] or toll free
1-866-HTD-AUDIO (483-2834).

10
How to Connect (CONT.)
Connecting Source Inputs to MC-66/MCA-66
Power
Multiroom Controller MC-66
Zone Status
123456
FUSE T1A/250V
AC 120V~60Hz
Power Consumption: 70W
IR OUT IR IN
SOURCE INPUT
RS232 INTERFACE
KEYPAD PORTS
123456
L
R
43
21
56
12V/DC
TRIGGER
OUTIN
ZONE 1
LRLRLRLRLRLR
ZONE 2 ZONE 3 ZONE 4 ZONE 5 ZONE 6
VARIABLE
VARIABLE
FIXED
FIXED
DVD Player Chromecast
HTD DAC-1
Figure 6
tv
Power Optical Coax
Input
DAC-1
IR OUTIR IN
SOURCE INPUT
RS232 INTERF A CE
KEYPADPOR TS
123456
L
R
43
21
56
12V/DC
TRIGGER
OUTIN
VARIABLE
FIXED
ZONE 1
LRLRLRLRLRLR
ZONE 2 ZONE 3 ZONE 4 ZONE 5 ZONE 6
VARIABLE FIXED
tv
Power Optical Coax
Input
DAC-1
IR OUTIR IN
SOURCE INPUT
RS232 INTERF A CE
KEYPADPOR TS
123456
L
R
43
21
56
12V/DC
TRIGGER
OUTIN
VARIABLE
FIXED
ZONE 1
LRLRLRLRLRLR
ZONE 2 ZONE 3 ZONE 4 ZONE 5 ZONE 6
VARIABLE FIXED
Power
Multiroom Controller MC-66
Zone Status
123456
FUSE T1A/250V
AC 120V~60Hz
Power Consumption: 70W
IR OUT IR IN
SOURCE INPUT
RS232 INTERFACE
KEYPAD PORTS
123456
L
R
43
21
56
12V/DC
TRIGGER
OUTIN
ZONE 1
LRLRLRLRLRLR
ZONE 2 ZONE 3 ZONE 4 ZONE 5 ZONE 6
VARIABLE
VARIABLE
FIXED
FIXED
Connecting The Amplier to the MC-66
Right Left
Right
Left
Right Right Left
Left
Left Right 3’ Shielded Stereo
Patch Cables
Right
Left
Use the Line Outputs on the MC-66 to connect to the Line Inputs on the ampliers for each zone. Diagrams 6.1 and 6.2
show the recommended connection to our DMA-1240 and DMA-1275 12-channel ampliers.
Figure 5
Figure 4
Sonos Connect

How to Connect (CONT.)
Using the Trigger In/Out (MC-66/DMA-1240 or DMA-1275):
**Be sure to power off the controller before disconnecting or connecting Cat5e cables or speaker cables.**
Trigger In: Only use this input when you want to turn on the controller at the same time another device is turned on. To do
this, the other device must have a low voltage trigger output and be connected to the controller via a 3.5mm mono connec-
tor patch cable. As an example, you might want the controller powered on when you power on a particular CD player. When
the CD player is powered on, it sends a low voltage signal to the trigger input on the controller. When the controller detects
this signal, it powers up out of sleep mode and all of the keypads will power on. IMPORTANT: Please note that while the CD
Player in this example is powered on, the controller and keypads can NOT be powered off.
Trigger Out: Use the trigger output to automatically power up an external device with a low voltage trigger input whenever
a zone is powered on. As an example, with the MC-66 controller, it is often a good idea to connect the Trigger Out to the
Trigger In on the external multi-channel amplier using a 3.5mm mono connector patch cable. That way, the multi-channel
amplier will only be powered up when a zone is active. Once all zones have been powered off, the multi-channel amplier
will return to sleep mode.
On - Auto On - Trigger Switch (MC-66/DMA-1240 or DMA-1275):
For the most energy efcient setting, set this switch to Trigger and connect a 3.5mm mono patch cable from the Trigger Out
on the MC-66 to the Trigger In on the DMA-1240/1275. If a zone is powered on, the low voltage output will be
active which will signal the DMA-1240/1275 to “wake up” and power on. If all of the zones are powered off,
the trigger output will be inactive and the DMA-1240/1275 will automatically return to sleep mode. Please note
that the Power Button on the front of the DMA-1240/1275 should be pressed in with the blue power indicator
light illuminated. Trigger mode, using the included Trigger cable is preferred. We generally don’t recommend
use of the “Auto” setting for this application. “Auto” mode detects the presence of an audio input signal. If that
audio input signal strength is low (as from iPods, MP3 players, computers, and other sources) it can cause the
amplier to either “turn off”, or not turn on.
Connecting IR Emitters and an IR Receiving Eye
The controller includes the ability to pass infrared (IR) signals on to other components located nearby. This allows the
controller and source components to be located in a centralized (and often hidden) location and still be controlled by the IR
remotes supplied with each of the source components.
The IR signals are sent to the controller either via the IR receiving eyes located on each keypad, or via an IR receiving eye
connected directly to the 3.5 mm input on the back of the controller (the IR input on the back of the controller is a source
passthrough only). The IR signals are passed along to the source components by connecting IR emitters to the back of the
controller and placing them in front of the receiving eyes on the source components. See gure 8.
To Whole-house
Audio Contoller
To Whole-house
Audio Contoller
To Whole-house
Audio Contoller
To Whole-house
Audio Contoller
Use the double-sided tape included with the IR
emitter to attach the emitter to the devices’s IR
recieving eye.
This emitter is attached in the appropriate loca-
tion. The emitter cable is running under this
device to the whole-house audio controller.
This is a side view show-
ing how the IR emitter
should be attached to
the device that is being
controlled.
11
Connecting IR Emitters to devices
On
Auto On
Trigger
Home Theater Receiver
Home Theater Receiver
Figure 7

How to Connect (CONT.)
12
Tip: Many of our customers nd it useful to buy a universal or learning remote control that can memorize the functionality of
all of the source components. Keeping one (or more) of these remote controls in a convenient location allows you to control
all of the source components by simply aiming the remote at any of the keypads located throughout the house.
Connecting IR Emitters to devices
Although the previous diagrams show the IR emitters placed near the devices that you wish to control, these diagrams are
meant to basically show how the emitters/receiving eyes t into your whole-house audio setup.
The emitters are packaged along with double-sided tape which allow the emitters to attach directly to the devices you wish to
control. These emitters should be placed directly onto the IR receiving eye of the devices. Figure 7 shows specically where
these IR emitters should be placed.
The IR emitters shown have a ash-back feature built into the device to visually signal when a command has been “passed
through” the system. This ash-back indicator is located on the top side of the emitter. The actual emitting eye within the
emitter is located on the bottom portion of the emitter. This is why the emitters should be attached on top of the device’s
receiving eye that you wish to control.
FUSE T1A/250V
AC 120V~60Hz
Power Consumption: 70W
IR OUT IR IN
SOURCE INPUT
RS232 INTERFACE
KEYPAD PORTS
1 2 3 4 5 6
L
R
43
21
5 6
12V/DC
TRIGGER
OUTIN
L R
PRE OUT
ZONE1
FIXED VARIABLE
L R
PRE OUT
ZONE2
FIXED VARIABLE
L R
PRE OUT
ZONE3
FIXED VARIABLE
L R
PRE OUT
ZONE4
FIXED VARIABLE
L R
PRE OUT
ZONE5
FIXED VARIABLE
L R
PRE OUT
ZONE6
FIXED VARIABLE
Home Entertainment Cabinet
Making use of Infrared Capability
Using IR Emitter(s)
Using the IR Receiver Eye (optional)
Connect Emitters to the Emitter Outputs on the back of the
controller. Place each IR Emitter directly on top of the audio
component’s infrared eye. (see the component’s owner’s
manual to determine this location).
Connect the IR Receiver Eye to the IR Receiver input on
the back of the controller. Position the Receiver Eye outside
of your cabinet or closet in a position where it can detect
your IR remote. It is only necessary when you don’t have a
keypad located nearby.
Zone 1-6
Equipment Room
RC6
Your own
remote
control
Your own
remote
control
(IR Receiving Eye, Emitters, Keypad and RC6 remote are sold separately)
Figure 8
MUTE
HTD Whole-House
Audio Controller
HTD 12-Channel
Amplifier
CD/DVD Player
Sat Rcvr
Tuner

We have designed the KC6 and KC7 keypads to be user friendly and intuitive. Once set up, anyone should be able to control
the basic functions the rst time.
When you rst get started, it is a good idea to let everyone know which components are available and the Source Input number
to which each of those components has been assigned. Example:
Source 1: Google Chromecast
Source 2: Sonos Connect
Source 3: Computer
Source 4: Blu-Ray Player
Source 5: TV
Source 6: Satellite Receiver
Setting Up the optional KC6 Keypad
Once everything is installed, power up the controller and go to the rst keypad. Turn the keypad on by pressing the power
button for about one second. All of the buttons will initially light blue, and then only those buttons that are currently active will
be lit. After about 15 seconds, the lights will dim, and after another 15 seconds, only the power button will remain lit. This is
called “sleep mode”. Bring the keypad out of sleep mode by pressing any button.
Make sure you have a source connected to Source Input 1 at the controller. Select source 1 at the keypad by pressing the
source button labeled “1”. Use the Volume buttons to set the volume level of the source to a typical listening level for that
zone.
To set the TONE CONTROL (bass, treble, balance) for that zone, press BOTH of the volume buttons at the same time for
approximately 2 seconds. While in SETUP mode, use the Source buttons as shown in Fig 9 to set the tone and balance for
that zone.
Once you have the settings to your liking, don’t push any button for about 15
seconds and the keypad will return to normal operating mode. After another 15
seconds the settings will be memorized in that keypad so that the next time you
power it on, the tone and balance settings will be the same as you programmed
them.
Repeat for all zones.
Using the KC6 Keypad
Source Selection Buttons:
Select a source by pressing on one of the 6 source buttons.
Volume Control:
Press the volume up or volume down button to control the volume. You can press these buttons once for a incremental
increase or decrease, or press and hold the buttons for continuous increase or decrease. There are seven indicator lights
that display the volume level relative to its minimum and maximum settings. There are 70 volume level settings (10 per
indicator light) giving you the ability to nd a perfect volume level at any time of day or night.
Power On/Off/Mute:
Press the power button once to turn the keypad on. Press it again to mute the sound in that zone. While muted, the power
button will blink. To un-mute, press the power button again or either of the volume buttons. Note that you may have to rst
wake up the keypad if it is in sleep mode by pressing any button.
Press and hold the power button for approximately 1 second to power off the keypad. This will work even while the key-
pad is in sleep mode or muted so that you don’t have to wake up the keypad in order to turn it off.
Power ALL OFF:
It is possible to turn off every keypad connected to the controller by simply pressing the power button on any keypad and
holding it for approximately 3 seconds. Note that the keypad you are pressing will turn off after 1 second; continue holding
for an additional 2 seconds to turn off all zones.
Party Mode / ALL ON
At any time, it is possible to force all of the zones connected to the same controller to turn on with the same source se-
lected. When a keypad is powered on, simply press and hold the source button you want to hear for approximately 4 sec
13
How to Use
Source Button Function
1 Treble Down
2 Treble Up
3 Bass Down
4 Bass Up
5 Balance Left
6 Balance Right
Figure 9
Setting Tone Control (KC6)

Party Mode / ALL ON (cont.)
onds. All of the keypads, even those that were previously powered off, will begin playing the same source at the volume
level previously set on each keypad.
Once all of the keypads have been set, they are again immediately available for individual control, i.e. a keypad in any
zone continues to have control over its own zone so that a different source could be selected or that zone could be turned
off.
Setting Up the Optional KC7 Keypad
Once everything is installed, power up the controller and go to the rst keypad. Turn the keypad on by pressing the power
button for about one second. All of the buttons will initially light blue. After about 30 seconds, the volume and source lights
will extinguish, the power button and the display screen will dim. This is called “Sleep Mode”. Bring the keypad out of sleep
mode by pressing any button.
Make sure you have a source connected to Source Input 1 at the controller. Select source 1 at the keypad by pressing the
source button to navigate to “SRC1” on the display screen. Use the volume buttons to set the volume level of the source to a
typical listening level for that zone.
The KC7 has the ability for the user to adjust bass, treble, balance, font color, background color,
brightness during operation, and brightness during sleep mode. These custom settings can be
accessed by entering the KC7’s “Setup Mode”. This can be easily accomplished by pressing both
volume buttons (up and down) simultaneously and held for approximately 3 seconds. Once the
“Setup Mode” has been accessed, the user will able to alter settings on the keypad using the setup
menu. From within the setup menu, the source buttons on the front of the keypad navigate which
keypad feature is being changed. Alternately the volume buttons on the face of the keypad adjusts
setting for each feature. Upon making all adjustments to the features, the user can simply wait
approximately 15 seconds for the keypad to return to its normal operating state at which point all
settings will be saved.
Adjusting Balance, Treble, and Bass (KC7):
Once “Setup Mode” is reached, using the process above in the “Setting Up the Optional KC7
Keypad” section (and navigating to appropriate feature), the KC7 screen will display the feature
(balance, treble, or bass) that you have current control over along with a graphic below showing
the current setting. (See Balance Example Screen - Figure 10) Use the volume buttons to make
adjustments to current settings, and use the source buttons on the face of the keypad to navigate
to the next or previous feature.
Adjusting Font Color and Background Color (KC7):
Once “Setup Mode” is reached, using the process above in the “Setting Up the Optional KC7
Keypad” section (and navigating to appropriate feature), the KC7 screen will display the feature
(Font Color/Back Color) that you have current control over along with a graphic below showing
the current setting. (See Font Color Example Screen - Figure 11) Use the volume buttons to make
adjustments to current settings, and use the source buttons on the face of the keypad to navigate
to the next or previous feature.
Adjusting Operation and Standby Brightness (KC7):
Once “Setup Mode” is reached, using the process above in the “Setting Up the Optional KC7
Keypad” section (and navigating to appropriate feature), the KC7 screen will display the feature
(Brightness of Operation/Brightness of Standby) that you have current control over along with a
graphic below showing the current setting. (See Brightness of Operation Example Screen - Figure 12) Use the volume but-
tons to make adjustments to current settings, and use the source buttons on the face of the keypad to navigate to the next
or previous feature. The Brightness of Operation feature allows you to adjust the brightness of the screen when in normal
operation mode. The Brightness of Standby allows you to adjust brightness of screen during “Standby” mode.
Note: Although the Brightness of Standby only shows 5 available settings there are actually 6. The nal setting being all the
way to the left. This setting actually turns the display screen completely off during Standby mode. Obviously this setting is
not available for the Brightness of Operation feature.
Note: If at any point one would like to “reset” the keypad to its default settings, this can be accomplished by navigating to the
“Default” feature within the setup menu, selecting “YES”, AND allowing the keypad to revert to active mode.
Repeat for all desired zones.
How to Use (CONT.)
14
Balance
Figure 10
Font Color
Figure 11
Brightness
of Operation
Figure 12

15
How to Use (CONT.)
Changing the Source Name on the KC7:
The KC7 keypad has the ability to display user-created names for each source on the LCD screen of each KC7 keypad.
These custom names must rst be created within the HTD Valet Home Control app. If the names have not been created in the
Valet Home Control app or the user has chosen not to use the Valet Home Control app in conjunction with the KC7, then the
source names displayed on the KC7 will default to SRC1, SRC2, SRC3, etc.
Instructions on how to change the source names within the Valet Home Control app can be found within the Valet Operations
Manual (located on the HTD site or included with the purchase of your HTD Valet gateway). Or you can contact HTD at info@
htd.com or toll free 1-866-HTD-AUDIO (483-2834) and we will gladly walk you through the setup instructions.
Using the KC7 Keypad
Source Selection Buttons:
Select a source by pressing either of the two source buttons to navigate through sources.
The two source buttons navigate in opposite directions. One advancing to the next source the other reverting to the previ-
ous source.
Volume Control:
Press the volume up or volume down button to control the volume. You can press these buttons once for an incremental
increase or decrease, or press and hold the buttons down for continuous increase or decrease. There are 60 volume level
settings giving you the ability to nd a perfect volume level at any time of day or night.
Power On/Off/Mute:
Press the power button once to turn the keypad on. Press it again to mute the sound in that zone. While muted, “MUTE”
will display on the KC7 screen. To un-mute, press the power button again or press either of the volume buttons. Note that
you may have to rst wake up the keypad if it is in sleep mode by pressing any button.
Press and hold the power button for approximately 1 second to power off the keypad. If keypad is in “sleep” mode, it must
rst be “awakened” to then power off. If volume is muted, the keypad can be powered off as normal with out being un-
muted.
Power ALL OFF:
It is possible to turn off every keypad connected to the controller by simply pressing the power button on any keypad and
holding it for approximately 3 seconds. Note that the keypad you are pressing will turn off after 1 second; continue holding
for an additional 2 seconds to turn off all zones.
Party Mode / ALL ON
At any time, it is possible to force all of the zones connected to the same controller to turn on with the same source se-
lected. When a keypad is powered on, simply press and hold the source button you want to hear for approximately 4 sec-
onds. All of the keypads, even those that were previously powered off, will begin playing the same source at the volume
level previously set on each keypad.
Once all of the keypads have been set, they are again immediately available for individual control, i.e. a keypad in any
zone continues to have control over its own zone so that a different source could be selected or that zone could be turned
off.
Using the Remote Control (KC6 or KC7)
We provide a simple, credit-card sized infrared remote control for controlling the basic functionality of the keypad. Simply
point this remote control at any keypad to conveniently change sources, control volume, mute, or power on and off in that
zone.
Using Your Own Remote Control (KC6 or KC7)
You may want to use your own universal or learning remote control to control the keypad functions as well as the functions
of the centralized components. To do this, you will need to purchase at least one of our remote controls and then follow the
instructions provided with your learning remote control to teach it to control volume, source selection, power, and mute.

16
Sometimes it necessary to connect two speakers to a single connector on an amplier or volume control. This can be a
challenge because, if you just twist the two bared ends of the wires together, the combined wire bundle is often too large to
insert into the connector. You may experience just this issue if you are trying to connect more than one speaker to the green
speaker connector used for the MCA-66.
A simple solution is to splice together the ends of the two wires, along with another single wire. Then you’ll have a single
wire for the connector on the amplier or volume control.
Steps for Splicing Wires:
1. Strip back about ½” – ¾” of insulation on the ends of the two wires to be spliced together.
2. Strip back about ½” – ¾” of insulation on the end of a 6”-10” single length of the same wire.
3. Twist the three bare wire ends together tightly.
4. Solder the twisted connection using electrical solder.
5. After the solder cools, wrap plastic electrical tape tightly around the splice.
Note: This example assumes the third wire extending in the opposite direction as the other two. That
results in a slimmer, neater joint. Alternately, you could arrange all three wires side-by-side and
twist them together.
Splicing Two Speaker Wires Down To One
As a less desirable alternative to soldering, you could use one of the plastic “wire nuts” shown below.

17
Connecting RJ-45 Plugs to Cat5e Cable
Please use a standard (T-568A or T-568B) RJ-45 connection with Cat5e cable (regular Cat5, shielded Cat5, or Cat6 are
all acceptable) to connect the keypad to the controller or another keypad. Never use a cable with a “Crossover” con-
nection in which the two ends of the cable are wired differently.
When running your Cat5e cable, you have two options: 1) use cable of predetermined lengths that have the RJ-45
plugs attached by the manufacturer, or 2) use a crimping tool to attach the RJ-45 plugs yourself after you have run the
Cat5e cable. With option 1) you don’t have to worry about the connections being solid and correct, but you’ll likely have
to cut larger holes through the framework of your house to get the cables into position. This option will cost a little more
because you are likely to have excess cable since you can only buy in predetermined lengths. Option 2) allows you to
buy your Cat5e cable in bulk and run exactly the length you need for each connection. But you’ll have to terminate each
end with an RJ-45 plug yourself.
Addendum
Instructions:
Start on one end and strip the cable jacket off (about 1”) using a stripper or a knife. Be extra careful not to nick the
wires, otherwise you will need to start over.
Spread, untwist the pairs, and arrange the wires in the order of the desired cable end. Flatten the end between your
thumb and forenger. Trim the ends of the wires so they are even with one another, leaving only 1/2” in wire length.
If it is longer than 1/2” it will be out-of-spec and susceptible to crosstalk. Flatten and insure there are no spaces
between wires.
Hold the RJ-45 plug with the clip facing down or away from you. Push the wires rmly into the plug. Inspect that
each wire is at and even at the front of the plug. Check the order of the wires. Double check again. Check that the
jacket is tted right against the stop of the plug. Carefully hold the wire and rmly crimp the RJ-45 with a special
RJ-45 crimping tool.
Check the color orientation, check that the crimped connection is not about to come apart, and check to see if the
wires are at against the front of the plug. If even one of these are incorrect, you will have to start over.
We recommend use of our EZ-RJ45 Crimper Tool and our EZ-RJ45 Tips to make the this job MUCH easier. With
the EZ-RJ45 system, the eight little wires of the Cat5 or Cat6 cable can be pulled completely through the EZ-RJ45
Tips, making color-coded wire verication easy.
Tips for Running Cat5e and Connecting to RJ-45:
• If you are pulling cables through hole, it is easier to attach the RJ-45 plugs after the cable is pulled.
• Odd numbered pins are always striped, even numbered pins are always solid colored.
• Looking at the RJ-45 with the clip facing away from you, Brown is always on the right, and pin 1 is on the left.
• No more than 1/2” of the Ethernet cable should be untwisted, otherwise it will be susceptible to crosstalk.
• Do not deform, do not bend, do not stretch, do not staple, do not run parallel with power cables, and do not run Cat5e
cables near noise inducing components.
RJ-45 Plug
Clip is pointed
away from you T-568B
oOg B b G br BR
12345678
T-568B
oOg B b G br BR
12345678
RJ-45 Plug
Clip is pointed
away from you T-568A
12345678
g G o B b O br BR
T-568A
12345678
g G o B b O br BR
O
o
G
g
B
b
BR
br
Orange
Orange striped
Green
Green striped
Blue
Blue striped
Brown
Brown striped
Wire Key
T-568A Straight-Through Cat5e Cable T-568B Straight-Through Cat5e Cable
Pin 1
Pin 1
Recommended
T-568A/T-568B Standardized RJ45 to Cat5e Connection Figure 13

Sharing Sources Across Multiple Controllers
Up to 6 audio devices can be connected to each MC-66 controller. Every keypad attached to that controller can
select between those devices. Using “Y-adapters”, it is possible to connect an audio device into multiple MC-66
controllers, making it available to all zones.
In the example below (Figure 12.1), the Tuner is available to all 12 zones, but CD
Player 1 is only available to six zones and CD Player 2 is only available to the other six zones.
18
Addendum
Sharing Sources Across Multiple Controllers Figure 14
CD Player 1 Tuner CD Player 2
Pow er
Multiroom Controller MC-66
Zone Status
123456
FUSE T1A/250V
AC 120V~60Hz
Power Consumption:70W
IR OUT IR IN
SOURCE INPUT
RS232 INTERFACE
KEYPAD PORTS
123456
L
R
43
21
56
12V/DC
TRIGGER
OUTIN
ZONE 1
LRLRLRLRLRLR
ZONE 2 ZONE 3 ZONE 4 ZONE 5 ZONE 6
VARIABLE
VARIABLE
FIXED
FIXED
Pow er
Multiroom Controller MC-66
Zone Status
123456
FUSE T1A/250V
AC 120V~60Hz
Power Consumption:70W
IR OUT IR IN
SOURCE INPUT
RS232 INTERFACE
KEYPAD PORTS
123456
L
R
43
21
56
12V/DC
TRIGGER
OUTIN
ZONE 1
LRLRLRLRLRLR
ZONE 2 ZONE 3 ZONE 4 ZONE 5 ZONE 6
VARIABLE
VARIABLE
FIXED
FIXED

Home Theater Direct, Inc.
www.htd.com
Expert Support:
Toll free: 866-HTD-AUDIO (483-2834)
[email protected]
TROUBLESHOOTING TIPS
• If you discover that a keypad is controlling a different zone, it is most likely because the speaker cables are connected
to the wrong output of the amplier.
• Protection Lights - the red protection lights on the MCA-66 will light only when a problem exists that triggers the built-in
protection mode. The amplier in a zone will shut down until the problem has been resolved. This is usually an indication
of a short in the speaker cable or speaker connection.
If you have any questions, please contact HTD at [email protected] or toll free 1-866-HTD-AUDIO (483-2834).
Specications:
Stereo Zones
Stereo Inputs
Pre-amp outputs (switchable between Fixed and Variable)
for each zone
RS232 connection for Valet Home Control app
IR emitter outputs
8 ohms RMS Watts Per Channel
4 ohms RMS Watts Per Channel
Dimensions (HxWxD)
Net Weight
MC-66
6
6
Y
Y
3
N/A
N/A
4” x 17” x 8”
10 lbs.
MCA-66
6
6
Y
Y
3
20
30
4” x 17” x 17.5”
30 lbs.