Harmon Kardon Silver Face HK 340 DC Coupled Integrated Amp TESTED

Harman / Kardon PM655 VXi Integrated Stereo Amplifier, with PHONO 220v

Vintage Harman Kardon HK6250 Integrated Stereo Amplifier Made in JAPAN

Harman Kardon 44+ CD-4 Demodulator | Quadraphonic 4-Channel Vintage Hi-Fi AS IS

Harman Kardon 44+ CD-4 Demodulator | Quadraphonic 4-Channel | Vintage Hi-Fi

GE 6FQ7 6CG7 TUBE PAIR for Harman Kardon HK-250 power amplifier (tested strong)

Original Harman Kardon Citation Wood Walnut CABINET for Model 15 FM Tuner

Pair of ALTEC PEERLESS Output Transformers 16309 from Heathkit W-5M Amplifiers