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Status: 12 In stock
Sold Per: Each

Double your warranty on Russound Multiroom Controller Amplifiers or A-BUS hubs!

Purchase one of the Eligible Products (whether as an individual product or as part of a “kit” including other components) and purchase a new pair of Russound speakers for every available zone of the Eligible Product and double your warranty when the products are purchased and installed together.

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The CA4-KT1 Multi-room Controller System Kit includes the controller (CA4), 4 system keypads (CA4-KP), wall port (CA4-WP), 4 IR emitters, system remote control (USRC) and rack ears. Wall plates not included.

Russound's CA4 Multizone Controller offers control of a four-zone, four-source multiroom audio system at an entry-level price. Engineered to partner with any home, the CA4 provides a slim profile chassis and elegant wire management solution for an attractive installation in either an entertainment center or equipment rack.

Designed for easy installation and use, it features a rack-mountable 1U chassis, Class D digital amplifiers, an RS-232 port for connection to home automation and control equipment, a 12 VDC mute trigger input, and a 12 VDC trigger output. The CA4 also features source grouping, all on, all off, and "party mode". Systems are scalable to support up to two CA4 controllers linked to make an eight-zone system with four sources.

To speed up wiring and reduce clutter, the CA4 uses an innovative Wall port to connect the Controller to the network of wiring that runs throughout the home. Four CAT-5 cables connect the CA4 to the wall port. From the wall port, CAT-5 and speaker wiring is run to each zone. This design allows a home to be pre-wired and tested before the CA4 and source equipment is installed.

For system control, the CA4-KP keypad lets you select between four sources and adjust bass, treble and loudness. The CA4-RC learning system remote is designed exclusively for the CA4 and provides complete source control through IR pass through. The new CA4 provides advanced system features and easy to use controls at a price that makes multiroom audio luxury affordable.



Standard Features

  • Four-source/four-zone controller, 30 watts per zone, CAT-5 connectivity and rack mountable for flexibility and convenience
  • Connect two controllers for eight zones, fixed and variable outputs allow for external amplification for larger zones
  • Adjustable bass, treble, loudness, "party mode" and "all off" for total control from keypads
  • Includes RS-232 port for integration with home automation systems
  • CAT-5 connectivity between unit and wall port make for easy installation
  • Newly designed controller with keypads available in five Decora colors, for an elegant and practical solution


The CA4-KP Keypad gives you simple control of your CA4 multiroom system. It includes 20 source labels to easily identify each system source, from a CD player to an iPod. The keypad also indicates volume and receives IR commands from a remote control. You can adjust the bass, treble, balance, loudness and volume directly from each keypad, as well as setting source grouping, all on, all off, and party mode. The CA4-KP features green backlighting, and includes an IR receiver and IR confirmation through an LED status indicator.

Standard Features

  • Adjustable bass, treble, loudness, "party mode" and "all off" for total control from keypads
  • CAT-5 connectivity to wall port makes for easy installation
  • Available in five Decora colors, for an elegant and practical solution


The CA4 Wall port allows for easy connection of a CA4 Multiroom Controller to the speaker and control wiring of the four system zones. Four dedicated CAT-5E cables connect the CA4 and Wall port, allowing for clean wire management in a neat, orderly bundle.

Standard Features

  • Wiring connections fit in a single gang work box
  • CAT-5 connectivity to controller makes for easy installation
  • Neat and clean wire management for an attractive installation


The USRC is designed to work with all of Russound’s multi-zone audio systems including the MCA-Series and all A-BUS systems. It controls any of the programmed system sources and up to three local devices such as a TV or home theater receiver. The USRC is compatible with all Russound systems that support RNET, including legacy systems (CAV6.6/UNO).

With an easy to use layout of commonly used source control buttons to quickly access music, the USRC is an attractive option for system control. Page Up and Page Down keys along with standard cursor keys support on-screen menu navigation. Discrete source keys allow selection of sources on the Russound systems without needing to scroll through a list. F1 and F2 Favorite keys access MCA System Zone Favorites, and a Sleep button enables the MCA system Sleep Timer function.

Pre-programmed to control Russound devices the USRC also includes a large library of IR device codes—compatible with most manufacturers’ products—for simplified system setup. It also has command learning capability for other devices and unique functions. The remote comes in a black on silver finish with a sleek ergonomic design and widely spaced keys for comfort and ease of use.

Standard Features

  • Pre-programmed for Russound devices
  • Controls modern Russound and A-BUS audio systems via the system keypad or IR receivers
  • Learning IR capability
  • Controls up to 3 programmable Local Sources
  • Sleek, ergonomic design



Shipping Dimensions 20.3" (W) x 7.5" (H) x 11.4" (D) - (51.4 x 19.1 x 29.0 cm)
Shipping Weight 11.4 lbs (5.2 kg)
Audio Output(s) 4 speaker level (8 ohms)
Audio Source Inputs 4
Common IR Port 1
Communication Ports RS232 port
Frequency Response 20 Hz - 20 kHz
Input Impedance 50 kohms
Line Audio Outputs 2 (Fixed and Variable) (Zone 4 only)
Max Source Audio Input 2.3 Vms
Power Supply VAC 100V to 240V @50-60Hz 110W (Auto Select)
Routed IR Ports 4
Trigger Input(s) 12VDC
Trigger Output(s) 12VDC 100 mA Max
Wall Port Ports 4
Watts per channel 15

*The spacifications table refers ONLY to the CA4 Multizone Controller. It does not include any information on the CA4-KP SYSTEM KEYPAD or CA4-WP WALL PORT that comes with the kit