Harman Kardon 3700 170W 2-Channel High Performance Stereo Receiver - Ships 7-14.

Power per channel 85 watts per channel, two channels driven @ 6/8 ohms, 20Hz – 20kHz, less than 0.07% THD. Put into service around 2017 the previous owner said I believe. I think 2015-16 was the last receivers HK made.

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