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Firmware Updates - Home audio products

Links to firmware updates available on the Audio Control website

Firmware downloads for Home AV processors and receivers and Director DSP amplifiers.

Firmware updates are specific to each model Concert AVR, Maestro Pre/Pro, and Director amplifier. Use the links below to find...

Firmware Update instructions for X7 and eX9 processors and XR-4/6/8 receivers – using a USB drive.

Concert XR 4/6/8 receivers and Maestro X7/X9 processors: firmware update instructions   Important Notes – Please read before beginning the...

Firmware updates for Director/Director Matrix DSP amplifiers.

This article refers to firmware updates for the D4600, D2800, M6800, M6400, M4800, & M4840 DSP amplifiers.  First, from the...

Firmware updates for CM series 70 volt amplifiers and RS500/RS1000 subwoofer amplifiers.

This article refers to firmware updates for the CM4-750, CM3-750, CM2-750 70 volt amplifiers and the RS500 and RS1000 subwoofer...

Firmware: Update instructions for AVR 7/9 and Maestro M5/M9.

AVR-7/9 or Maestro M5/M9 Firmware update instructions: IMPORTANT NOTES Dirac files: Firmware updates clear any Dirac calibration settings that are...