YAMAHA Natural Sound Stereo Control Amplifier C-40

Yamaha A-400 natural sound stereo amplifier

VTG Yamaha A-32D Natural Sound Stereo Amplifier 140W Japan Powers on/untested

Harman Kardon Hal 825 Stereo Preamplifier

Natural Sound Stereo Amplifier AV-35, Yamaha, 4 CH TESTED

Yamaha CX-800 Natural Sound Stereo Control Amplifier Preamplifier Black Japan

Onkyo P-301 Black Infrared Wireless Remote Controlled Stereo Preamplifier

Yamaha A-15 Natural Sound Stereo Integrated Amplifier