For Parts Audio Design Associates ADA PTM-6150 Six Channel A/B Power Amp

Audio Design Associates ADA PTM-1645VC 16 Channel 8 Zone 600w Power Amplifier

ADA Audio Design Associates PTM-850 Multi-Channel Power Amplifier

Ada Audio Design Associates PTM-8100 8 Channel Power Amplifier [Tested]

ADA Audio Design Associates PTM-850 Audio Distribution Amplifier 8x50W

Audio Design Associates PTM-650 6 Channel Amplifier Works Great

Audio Design Associates ADA PF-200 POWER AMPLIFIER

Audio Design Associates PTM-650 6 Channel 3 Zone Premium Power Amplifier ADA