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Anthem AVM / MRX

Controls Anthem AVM processors and MRX receivers with their semicolon-terminated, zone-addressed ASCII protocol (for example Z1VOL-30;).

Two transports:

  • IP — TCP. The port depends on the generation: 14999 for 2014/2021 models, 4999 for the 2017 x30 series.
  • RS-232 serial — baud 115200 or 19200 depending on the unit.
  • Connection — IP or RS-232.
  • For IP: host and port (14999 or 4999 by generation).
  • For serial: serial port and baud (115200 or 19200).
  • Zone — 1–3.
CommandWhat it does
power_on / power_off / power_toggleTurn the zone on or off, or toggle it
volume_up / volume_downStep the volume
set_volumeSet the volume in dB (−90 to 0)
mute_on / mute_off / muteMute, unmute, or toggle
set_inputSelect an input by number
rawSend a raw ASCII command

Reports power, volume, mute, and input as state. Commands act on the configured zone (1–3).