automated testing software (apts applications - from jo-jo tech)

automated test fixture (pcba board test: specially designed for the mixer motherboard customized test fixture)

apts - basic audio analyzer apts - swr audio switch box (from jojo tech)

test pc

testing purposes:

test each channel audio input, output, and microphone ein noise, cmrr in phase, background noise, frequency response, pusher, switch and control potentiometer, gain and level...etc.