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Mopidy extension for controlling volume on a NAD amplifier

Project description

Mopidy extension for controlling volume using an external NAD amplifier. Developed and tested with a NAD C355BEE.


Install by running:

sudo pip install Mopidy-NAD

Or install the Debian/Ubuntu package from


The Mopidy-NAD extension is enabled by default. To disable it, add the following to mopidy.conf:

enabled = false

The NAD amplifier must be connected to the machine running Mopidy using a serial cable.

To use the NAD amplifier ot control volume, set the audio/mixer config value in mopidy.conf to nadmixer. You probably also needs to add some properties to the audio/mixer config value.

Supported properties includes:

The serial device to use, defaults to /dev/ttyUSB0. This must be set correctly for the mixer to work.
The source that should be selected on the amplifier, like aux, disc, tape, tuner, etc. Leave unset if you don’t want the mixer to change it for you.
Set to on or off if you want the mixer to make sure that speaker set A is turned on or off. Leave unset if you don’t want the mixer to change it for you.
See speakers-a.

Configuration examples:

# Minimum configuration, if the amplifier is available at /dev/ttyUSB0
mixer = nadmixer

# Minimum configuration, if the amplifier is available elsewhere
mixer = nadmixer port=/dev/ttyUSB3

# Full configuration
mixer = nadmixer port=/dev/ttyUSB0 source=aux speakers-a=on speakers-b=off


v0.2 (2013-04-16)

  • Add missing create_track() helper function.

v0.1 (2013-04-16)

  • Extracted extension from Mopidy core.

Project details

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