Hafler DH-200 stereo audio power amp and spare backup MOSFET parts. $275.00 OLD VINTAGE DYNACO 120A SOLID STATE POWER AMP STEREO $172.50 Marantz 4400 Dual Power AMP Module With Heatsink $160.00 Yamaha Natural Sound Combo C 50 Preamp PLUS M 50 Power Amp 120 watts RMS @8 omhs $459.99 VINTAGE TUBE AUDIO POWER AMP [...]