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M&S SYSTEMS XTREME MUSIC DISTRIBUTION SYSTEM
SIX SOURCES TO FOUR ZONES, EXPANDABLE TOO!
The Model XDM4600KIT Music Distribution System Kit is an expandable, integrated digital audio system that switches six audio sources to four speaker zones. Each speaker zone can play any of the six audio sources. The system has built-in keypad-to-keypad intercom functions that also allows communication with visitors at the front door through a door speaker. Each speaker zone keypad has backlit keys that select the audio source and can control all functions of the system. The keypads mount in standard double-gang J-boxes.
The four speaker zone keypads, the door speaker, and six audio sources all connect to a single XDM46CC central controller. The central controller has six analog line-level audio inputs for connecting music sources to the system. The central controller converts the analog audio to digital audio for distribution to the speaker zone keypads. An infrared repeater system built into the controller monitors the infrared receivers at each keypad and repeats the infrared remote control signals to the audio source components through infrared emitters.
Each speaker zone keypad contains a Class D digital amplifier with 60 watts maximum output power (30 watts per channel). The speaker zone keypads connect to the central controller with standard Cat-5 cable for the digital audio and control signals. Low-voltage power for each keypad is provided by the 120 VAC powered central controller through 16 gauge 2-conductor wire. Each keypad connects to a pair of 8-ohm speakers.
A Model XDMWP Music Distribution System Audio Input Wall plate can be connected to a XDM46K Music Distribution System Keypad for a local audio source. Any audio source (iPod, X-box, CD player, etc.) can be connected to the local audio input wall plate to play through that keypad's speakers.
A Model DS3B2 Intercom Door Speaker with Bell Button is used to communicate with visitors at the front door. When a visitor presses the door speaker's bell button, each keypad's audio is muted and a chime sounds to announce the visitor. The resident can talk and listen to the visitor from any speaker zone keypad.
The system can be expanded to up to eight speaker zones using the Model XDM46EH Music Distribution System Expansion Hub and additional XDM46K speaker zone keypads.
Note: Speakers NOT included. Use 8 Ohm speakers only. Click here to view some 8 Ohm in-wall or 8 Ohm in-ceiling speakers.
M&S XDM4600KIT SYSTEM OVERVIEW:
The XDM4600 provides six audio sources to four zones, or rooms, in the home. In addition, the Zone Keypads and the Door Station have intercom functions (page all, listen all, front door communications) for communication throughout the home. It is possible to expand the number of zones to eight with the optional Expansion Hub. The core system kit consists of the following components:
Central Controller
The Central Controller (XDM46CC) connects to six audio sources in a central location and acts as a router to control those sources
Zone Keypad
Four Zone Keypads (XDM46K) serve as intercoms and controls for the audio sources. Each zone can select its own audio source. A local audio source, such as a child's own CD
player, can be connected to a Zone Keypad using the optional Local Audio Source Wall Plate (XDMWP).
IR Remote
The Universal Remote Control (XDM46R) is used to control the audio sources. It is preprogrammed to control the volume of the Zone Keypads, accepts programmed macros and can control the audio equipment directly or remotely through a Zone Keypad.
IR Emitters
The IR Emitters (XDMIRE) connect the Central Controller IR output to the audio equipment IR eye so the IR Remote can be used to control that equipment from the Zone Keypads. (Extra emitters can be purchased in packages of six.)
Door Station
The Door Station (DS3B2) is installed at the front door and is used as an intercom for communication with visitors. The system accommodates one Door Station only. (The Door Station requires rough-in kit ME3, which must be installed when pre-wiring is done. The rough-in kit is shipped separately.)

M&S XDM4600KIT Manual (.pdf)
Features:
- Four XDM46K Keypads and one DS3BS Door Speaker included
- XDM46CC Central Controller and XDM46R Remote Control included
- 20 Hz to 20 kHz frequency response
- .2% maximum total harmonic distortion
- 95 db minimum signal-to-noise ratio
- Central controller powered from 120 VAC
- Class D digital amplifier in each speaker zone keypad with 60 watts output power
- IR receiver built into each keypad, IR repeater in controller
- Four speaker zones expandable to eight speaker zones
- Keypad intercom privacy feature
- Keypads mount in standard double-gang J-boxes
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