Adcom GTP-450 Stereo Tuner/Preamplifier GTP450 Powers On READ!

Adcom GTP-500 Stereo Tuner Preamplifier Powers On Untested

ADCOM GTP-502 Stereo Tuner/Preamplifier

ADCOM GTP-450 Analog Amplifier

ADCOM GTP-830 Surround Sound Processor Preamplifier 120/240v w/Remote--Works

ADCOM GTP-400 Pre-Amp/Processor Amplifier

Adcom Digital GTP-750 AC-3 DTS Tuner/ Preamplifier 120V 60Hz Power Tested

Adcom GTP-600 5 Channel Pre-Amp/Processor Amplifier + Does Not Power On