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Russound KT2-88 Controller Amplifier System Kit

Multi-zone amplifier and control kit for Russound distributed audio systems

Item # 543KT288

Planning a whole-house audio system? This Russound package helps you enjoy high-quality music in many rooms at once.

Planning a whole-house audio system? This Russound package helps you enjoy high-quality music in many rooms at once.

Item # 543KT288

Ships free

Temporarily out of stock Why?

Expected: 8/27/2021


About the Russound KT2-88 Controller Amplifier System Kit

Central command for your distributed audio system

Planning your new whole-house audio system? This Russound package pairs the feature-packed MCA-88 controller/amplifier with six MDK-C6 in-wall keypads for music playback and control in multiple rooms at the same time. 

Central command for your distributed audio system

Planning your new whole-house audio system? This Russound package pairs the feature-packed MCA-88 controller/amplifier with six MDK-C6 in-wall keypads for music playback and control in multiple rooms at the same time. 

Russound MCA-88 multi-zone controller and amplifier

The MCA-88 offers an array of input and output options for your multi-room audio system.

Send music to up to 8 zones

Each of the MCA-88's 12 speaker outputs deliver 40 watts RMS — plenty of power to drive in-wall, in-ceiling, and bookshelf speakers around your home. 

In addition to its six pairs of powered outputs, the MCA-88 can send a line-level RCA signal to up to eight zones. This lets you use optional additional power amplifiers in conjunction with the MCA-88 to drive more speakers.

Lots of source connection options

A host of RCA, coaxial digital, and optical digital inputs let you connect as many as eight different audio sources, like network music streamers, CD players, and satellite radio tuners. 

Play jazz in the upstairs bedroom, salsa in the kitchen, rock in the living room, and sports radio on the patio. Or play the same source simultaneously throughout the house. 

Control from your phone or tablet

The free MyRussound™ app lets you control the MCA-88 from your iOS® or Android™ device, while the included handheld remote, IR (infrared) emitters, and in-wall keypads provide additional control options in each room.


Product highlights:

  • multi-zone amplifier and control kit for Russound distributed audio systems
  • includes MCA-88 controller/amplifier and six MDK-C6 in-wall keypads
  • distributes music from eight sources to up to eight listening areas in your home (six of the zones are amplified)
  • expandable up to 48 zones with additional controller/amplifiers
MCA-88 controller/amplifier:
  • 6 pairs of speaker connectors
  • 40 watts RMS x 12 at 8 ohms
  • 8 RCA stereo inputs
  • digital audio inputs: 1 Toslink optical, 3 coaxial
  • 8 line-level RCA outputs for connecting optional additional power amplifiers
  • supports Bluetooth® streaming with optional BTC-1X receiver
Operation and control:
  • 8 RJ-45 ports for connecting the included keypads via CAT-6 Ethernet cable
  • free MyRussound app lets you control the MCA-88 from your iOS or Android device
  • supports voice control via an Amazon Alexa device
  • supports RS-232 and IP-control for integrating a third-party home automation system
  • includes 7 IR (infrared) emitters for relaying remote control commands
  • 6 routed IR outputs and 1 common IR output
  • 12-volt trigger input and output
  • handheld remote control included
Dimensions and warranty:
  • rack-mountable (mounting ears included)
  • 17"W x 3-3/4"H x 19-1/2"D (including power cable)
  • weight: 28.8 lbs.
  • warranty: 3 years
  • Our 60-day money-back guarantee
  • MFR # 1550-536588

What's in the box:

  • Multi-zone controller/amplifier
  • 6 Multi-line display keypads
  • 6 Decorative wall-plates (white)
  • USRC Hand-held IR remote control
  • 2 AA batteries
  • Four IRE-1 IR emitters w/attached 10' cord terminated in a 3.5mm TS plug (each includes an emitter cover & 3 adhesive stickers)
  • Six 4-pin speaker terminal blocks
  • 2 Rack-mount ears
  • Twenty-four 22mm machine screws
  • Ten 12mm machine screws
  • 71" AC Power cord (IEC 3-pin)
  • MCA-88 Installation manual
  • MDK-C6 Installation manual
  • USRC Remote control manual
  • Read-This-First software unlocking warning

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More details on the Russound KT2-88 Controller Amplifier System Kit

Stacey B.

Product Research

Inputs & Outputs
Configuration & Control
Additional Features
Receiver Specifications
MDK-6C Display Keypad


System Overview: The Russound MCA-88 is an 8 source, 8 zone controller/amplifier with 40 watts (RMS) of output power per channel for each of the 6 amplified zones. Zones 7 and 8 are line-level outputs for running to an optional outboard amplifier or set of powered speakers (both sold separately). The MCA-88 is Ethernet enabled and is part of Russound's RIO (Russound I/O) IP based control systems protocol. This allows it to communicate bi-directionally with the 6 included Russound MDK-C6 touchscreen keypads, providing multi-zone playback and control for different areas of your home. The amplifier/controller includes a multitude of analog and digital inputs, all of which can be assigned to any of the 8 zones. Other features include home theater trigger outputs, for activating outboard devices, an RS-232 port, for integration with serial-connected home automation systems, and a direct-connection port for Russound's optional Bluetooth interface (sold separately).

Note: The included Russound MDK-C6 display keypads require CAT5/6 cable for connection to the MCA-88, which must be purchased separately.

 Inputs & Outputs

Input Sources: The Russound MCA-88 features a wide array of input sources that can be assigned to any of the 6 output zones. Sources include:

  • Analog Inputs: The controller/amplifier's rear panel includes 8 pairs of signal-sensing RCA inputs, which can be used to input audio from a variety of playback devices, such as a CD or media player. These sources can be programmed during zone setup to be global sources, or zones can be individually programmed for restricted access. Each of these inputs also has an additional pair of looped RCA OUTs for passing incoming signals for that zone back out to an outboard amplifier or other processor.
    • Page Input: Input eight's right RCA jack can also be used as a paging audio input, accepting line-level audio signals. This works in conjunction with the rear-panel 3.5mm Page Trigger Input. The right channel RCA output will loop the Page signal back out, for running to an additional amplifier. This input can interface with the page output of a telephone system or other peripheral device. When a page event is engaged, it interrupts the audio outputs for all enabled zones. System paging can be disabled permanently in each zone or temporarily. These settings, along with Source 8 assignment are done in the Web Config setup software (see Configuration and Control). A rear-panel Paging Audio Gain dial is used to adjust the Page signal input.
  • Digital Inputs: Three coaxial digital and one optical input are provided for running digital audio sources into the system, such as from a streaming device or digital media player. The digital inputs are hard-wired to Sources 3, 4, and 5. The Web Config setup software lets you designate whether those input sources will be using the analog or digital inputs. Digital Input 5 includes both coax and optical ports, only one of which can be used at a time.
  • Bluetooth: The MCA-88 provides a rear-panel RJ-45 connection for the optional Russound BTC-1X Bluetooth module (sold separately), allowing audio to be streamed from a Bluetooth enabled smartphone, tablet, or laptop. The BTC-1X module has a Bluetooth range of up to 49' and can be located up to 300' from the MCA-88 using CAT-5 cable. This allows audio to be streamed from a location remote to the MCA-88. The BTC-1X uses aptX audio codec for enhanced sound quality. A Bluetooth connection takes up Input Source 1. Using the Web Config setup software, a Primary Zone can be set for the Bluetooth input, allowing a specific zone to serve as the default zone for Bluetooth source.

Zone Speaker Outputs: Six pairs of stereo speaker outputs are provided in the form of removable 4-pin terminal blocks, one each for zones 1-6, each using a locking-lever connection accepting speaker wire up to 14 ga. in size. Each pair of outputs is powered by its own internal 2-channel amplifier, providing up to 40 watts (RMS) per channel into an 8Ω load (minimum impedance).

Zone Line Outputs: A bank of 8 pairs of RCA jacks, one for each of the  8 zones, is included for sending that zone's audio to an outboard amplifier (sold separately). The output for each can be set to either Fixed or Variable in the Web Config, allowing that zone's volume to be adjusted either from within the MyRussound App or at the outboard playback amp. Other zone settings available in the Web Config include:

  • Zone and Source Naming: A list of predefined names are available for each zone and source, or they can be custom named.
  • Party Mode: This mode allows a pre-designated source to play through all assigned zones.
  • Linked Zone and Source Groups: Allows up to two sources and zones to be linked to a single touchscreen or keypad controller.
  • All On: Each zone can be assigned to respond to an All On command from a controller.
  • Source Exclusion: Allows you to limit the sources available to a particular zone.
  • Paging: Page Participation and Page Volume can be set for each zone.

Configuration & Control

Ethernet Connection: The MCA-88 features a rear-panel Ethernet port for a hard-wired connection to a LAN (Local Area Network), allowing configuration and programming of the controller/amplifier through the Web Config, as well as enabling day-to-day control via the MyRussound App. The default network setting is DHCP-enabled, but a static IP address can be configured using the Web Config software during initial setup.

Note: All setup and configuration must be done through a browser-based controller using a network connection. When the MCA-88 is initially shipped, it will only operate in a "locked" state. In this state, no audio or control is available. In order to unlock the system, valid Russound Certified Installer credentials must be entered using the convenient Web Config browser-based configuration utility. Please contact your sales advisor for details.

Web Config: The MCA-88 includes a new programming feature called Web Config. This allows the MCA-88 to be completely configured via its IP address using any smartphone, tablet, or laptop connected to the same network as the controller/amplifier. Configurable options include: zone assignments, network configuration, IR programming, power management, keypad button configuration, and more.

MyRussound App: The MyRussound App (available from the App Store or Google Play Store) lets you operate the MCA-88 from your Apple or Android phone or tablet, giving you control of the controller/amp from anywhere inside your network's range. This is a convenient way to select a source for a zone, change the volume and sound settings, and can even let you control other devices connected to the MCA-88 like a satellite box, Blu-ray player, or radio tuner. This also allows other people to control the sound and source for the zone they're in.

XTS Controller: The Russound XTSPlus Touchscreen controller (sold separately) is a stylish in-wall touchscreen that runs an embedded version of the MyRussound App. This allows the same control that's available on your smartphone or tablet without having to use your device to change the volume or make a music selection. The XTS is an IP-based network device that gets connected to either the Ethernet port on the MCA-88 or to the same router it's connected to.

Note: In order to prevent unauthorized changes to configuration settings, a default password (see owner's manual) has been created that will be required to be entered prior to changing any configuration settings. The default password is user-changeable in the Web Config.

RNET Link: Two rear-panel RJ-45 sockets provide RNET Link In and Link Out connections. These allow linking of up to two or more (maximum 6) MCA-88 controller/amps using CAT-5e cables terminated in RJ-45 connectors using the T568A wiring configuration. A corresponding rear-panel Controller ID Switch allows each connected device to have its own unique ID number (1-6) to avoid command signals affecting all connected devices. The RNET Link In and Out ports can also be used for connecting other RNET-enabled source equipment, such as the Russound XSource Streaming Audio Player (sold separately). Along with RNET data signals, these ports will also pass source IR signals between different RNET devices.

Note: To avoid potential cross-talk between the source-specific IR repeating signal lines, CAT5e cable runs should not exceed 18 inches in length.

Keypad Controllers: The MCA-88 features six RJ-45 ports, one for each zone, for connecting the 6 included MDK-C6 keypad controllers. Each keypad controller can be mounted in or near its intended zone of use, for independent control of Power, Source, Volume, and more. Optional Russound SLK-1 keypad controllers (sold separately) can also be used, providing a scaled-down set of controls and LCD screen, designed to mount in a single-gang junction box.

Note: The MCA-88's keypad ports will only work with Russound keypads. Each one outputs 12VDC that can damage other types of networking products.

IR Outputs: Six routed IR emitter pass-thru ports allow IR control of 6 individual source devices. IR Outputs 7 and 8 are doubled-up with Outputs 1 and 2. Device control can be done from a zone keypad controller, an XTS controller, or from the MyRussound App. Each 3.5mm port can accommodate on of the 4 included IR emitters that gets placed in front of the source device's IR window. A seventh Common IR port supports IR pass-thru from any of the IR sources or zones. This allows control of any source equipment without that source being selected on the keypad. 

Alexa Compatible: Alexa-enabled devices (including the Amazon Echo, Echo 2nd Gen, Echo Dot, Echo Dot 3rd Gen, Tap, Echo Show, and Echo Show 2) are able to control key functions of the Russound MCA-88 controller/amplifier through voice commands. Voice control functions include -

  • Volume Control (Turn Volume Up, Down, Mute, or set a specific volume level directly)
  • Zone On/Off
  • Playback Control (Play/Pause, Next/Previous Track, Repeat/Shuffle)
  • Like/Dislike Song (for compatible streaming sources)
  • Adjust audio settings (Bass, Treble, Loudness)
Note: You will need an Alexa-enabled device (sold separately) to operate the MCA-88 via voice-command. The controller/amplifier and the Alex-enabled devices must be on the same network.

RS-232: A rear-panel RS-232 port is provided for connecting an optional 3rd party controller device using the RS-232 control protocol.

12VDC Trigger: Two 3.5mm 12VDC trigger ports are provided (tip-positive/sleeve-negative) for both IN and OUT.

  • IN: Allows the MCA-88 and connected source devices to be powered on/off via an external device's 12VDC trigger output, such as from a home theater receiver or power management device.
  • OUT: The MCA-88 can trigger an outboard device, such as an amplifier or motorized screen, on or off. The OUT also acts as a pass-thru when using the IN port.

Common 12VDC Trigger: This 3.5mm port will output12VDC/100mA when any zone is activated (tip-positive/sleeve-negative).

Additional Features

Front-Panel Indicators: The MCA-88's front panel includes a removable semi-transparent section covering eight LEDs indicating if that corresponding zone is powered on or off. This section also includes the IR window, for use with the included USRC hand-held IR remote control. A corresponding IR LED lights to indicate if the unit is receiving IR signals.

Mounting: The Russound controller/amplifier includes 4 pre-attached feet with rubber no-slip pads. The system can also be rack-mounted using the included rack-ears and hardware. After removing the attached feet and installing the rack-ears, the unit will take up 2U of rack space.

Factory Reset: A rear-panel Reset button is provided. Pressing and holding this for 3 seconds will reset the network back to DHCP. A 10 second press and hold will delete all configuration information and lock the unit (it's original state when first powered on). This will require valid Russound Certified Installer credentials and an internet connection in order to unlock the unit again. A backup copy of your original configuration can be saved in the Web Config software, letting you quickly restore the unit back after resetting and unlocking it.

Firmware Updates: The MCA-88 can have its firmware updated either through the Web Config software, as long as the controller/amp is connected to a LAN with internet access, or through the dedicated rear-panel USB port using a USB thumb drive.

Fuse Protected: The MCA-88 includes a user-replaceable T5.0A/250V AGU type fuse, located underneath the rear-panel AC power socket.

AC Voltage Switch: A rear-panel switch allows the voltage range to be set, depending on the location the controller/amplifier will be used. Choices are: 100-120V and 220-240V. If changing to 220-240V, the rear-panel fuse must be changed to a T3.15A 250V type.

Receiver Specifications

  • Output Power: 40W RMS @ 8Ω
  • Minimum Impedance: 8Ω
  • Frequency Response: 20Hz-20kHz +/- 1dB at 1W output into 8Ω
  • Signal to Noise Ratio: 93 dB unweighted, 96 dB A-weighted
  • Total Harmonic Distortion: <0.05%
  • Source Inputs: 8 Pairs stereo RCA, 3 coax digital, 1 optical digital
  • Zone Outputs: 6 Speaker-level (20W/channel), 8 line-level
  • Home Theater Trigger: In/out, 12VDC (pass-thru)
  • Common Trigger: Out, 12VDC/100mA
  • Page Trigger: In, 12VDC
  • Speaker Connections: 6 Removable 4-pin connectors
  • IR Outputs: 6 Routed, with 2 shared and 1 common
  • Dimensions: Width = 17.0" (19" w/ rack-ears), Height = 3.750", Depth = 19.50" (incl. power cable)
  • Weight: 28.8 lbs.

MDK-C6 Keypads

MCA Series Display Keypad: The Russound MDK-C6 is a wall-mounted multi-line display keypad designed for use with the included MCA-88 multi-zone controller/amplifier, as well as other select Russound MCA series controllers/amplifiers, including the MCA-66 (sold separately). It features a gray scale screen, menus and navigation buttons to easily find and control music sources and to make changes to system settings and room audio levels. Its alarm and sleep timer adds extra functionality.

Multi-Line Gray Scale Display: The Russound MDK-C6 keypad's multi-line gray scale LCD screen (2.75"x1.375") shows source and system navigation screens. It offers real-time information including playlist, channel, artist, song title, genre and more when used with compatible Russound sources. It also displays virtually ever system menu setting and function. You can adjust the brightness level of the display.

Responsive Hard Button Controls: The MDK-C6 features 13 responsive hard buttons for access to virtually every system feature and source control function. You'll be able to control Power On/Off, Volume Up/Down, Play/Pause, and Previous/Next Track; as well as access Menu Settings and Shortcuts. The "OK" button in the center activates a menu choice and the navigation buttons allow you to move through menus and lists, as well as provide source controls.  The buttons' LED brightness is adjustable and can be dimmed.

IR Commands: In addition to push-button control, the Russound MDK-C6 keypad supports IR commands from programmable, universal remote controls. It offers a detachable 4-pole screw-down connector for an optional external IR receiver (sold separately).  If utilizing an external IR receiver, then you must disable the IR receiver in the keypad. This is disabled in the installer options menu on the keypad.

Alarm & Sleep Timer: You can setup the MDK-C6 keypad as alarm clock and wake up to your music. You pick the wake time, how often (all days/weekdays/once), and the music source. It even offers level adjustment and an adjustable snooze (5-30 minutes). In addition, the MDK-C6 provides a sleep timer, so the zone you are listening to turn off after 150, 30, 45, or 60 minutes.

Ethernet Connection: The MDK-C6 keypad is equipped with a RJ-45 jack (T568A wiring standard) on the back that is used to connect to a compatible Russound MCA series controller/amplifier using CAT-5/6 cable (sold separately).  Cable runs for zone keypads should not exceed 250' maximum. The MDK-C6 requires 12VDC/275mA of power, which it receives from the MCA controller/amplifier through the connected CAT-5/6 cable.

Note: The Russound MDK-C6 display keypads require CAT5/6 cable for connection to the MCA-88, which must be purchased separately.

Dual-Gang Box Installation: The MDK-C6 is designed to be mounted in a standard dual-gang electrical box (not included). You will need a UL/CSA approved plastic 32ci double-gang wall box (sold separately). A decorative wall-plate (white) is included, with additional wall-plates available in Black, Almond, and Light Almond (each sold separately) to better match your interior decor. For best viewing and usage, the MDK-C6 should be mounted at thermostat height, or about 58"-60"  from the floor.

  • Keypad Dimensions: 4.5625" (w) x 4.5625" (h) x 1.875" (d)
  • Wall-Plate Dimensions: 4.8125" (w) x 4.8125" (h) x 0.3125" (d)

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