XDM46EH: Music Distribution System Expansion Hub

The Model XDM46EH Music Distribution System Expansion Hub is used to add additional speaker zones to the Model XDM46CC XDM Music Distribution System central controller.

The expansion hub adds up to four additional speaker zones, each with a speaker zone keypad. Each speaker zone keypad has backlit keys that select the audio source, perform intercom functions, and control all functions of the system.

The XDM46EH expansion hub mounts near the XDM46CC central controller and connects to the controller with a single cable. The expansion hub is powered from 120 VAC.


  • Expands XDM system to up to eight speaker zones
  • 20 Hz to 20 kHz frequency response
  • .2% maximum total harmonic distortion
  • 95 db minimum signal-to-noise ratio
  • Expansion hub 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
  • Keypad intercom privacy feature

User Manual