Got my hands on a beautiful piece of equipment the Harman Kardon HK 670 amplifier. : r/audiophile
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HK 670 - Harman/Kardon HK 670 - Audiofanzine
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Help me with my amps, Marantz PM-64 II vs Harman Kardon HK670 | AVForums
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Harman/Kardon hk670 receiver amplifier (Stereo Review, Apr 1979) | Audio Science Review (ASR) Forum
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Harman Kardon HK 670 | Harman Kardon Gallery | 2015-09-08 19:22 | HiFi Engine
Harman/Kardon HK670 Receiver
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Harman Kardon HK670 (826) - YouTube
Harman/kardon HK 670 integrated amplifier (Used)SOLD
