5-channel Stereo Audio Mixer (AMX-4A)

The AMX-4A device is a 5 channel stereo audio mixer for aircraft applications. It is similar to the AMX-2A mono mixer, except for the provision of stereo left and right outputs.  Connecting the two outputs together allows the device to be used in monophonic applications. Two of the five stereo audio inputs have volume controls that are screwdriver adjustable, while the other three are fixed level for connection to instruments that have their own volume adjustment capability.  The AMX-4A is capable of driving up to 12 volts peak-to-peak with a nominal gain of 12 dB (unloaded).