Harman Kardon HK6900
The Harman Kardon HK6900 is a stereo receiver, and the surviving documentation on it is thin. What the record does show is a well-regarded integrated amplifier/receiver that owners praised. HiFI-Stereo (August 1990, p.48) ran a Hirsch-Houck Labs equipment test report on it, so the period press took it seriously.
The core spec is simple: 100 watts per channel into 8 ohms, from 20Hz to 20kHz, both channels driven, with less than 0.09% THD. Clean power, nothing exotic. A 1992 buyer's guide listing in HiFI-Stereo (February 1992, p.76) placed it at 170 W/ch, but that figure appears to be a peak or dynamic rating rather than the continuous FTC-style number. The 100W/ch figure is the one that shows up consistently in the spec sheet and forum reports.
Past that, the paper trail runs out. No production years, original price, dimensions or weight have surfaced in the accessible record. No detailed input/output lists, damping factor or S/N ratios either. Owners on the stereo2go forums are consistent about it, though: "I just picked up a HK6900 and it sounds great," "The HK6900 is a great receiver. I have one and love it," "these are very nice receivers." The tone across multiple independent posts is uniform.
Little hard documentation survives, so the HK6900 remains a poorly documented entry in the Harman Kardon lineup. It got a professional lab test in its day and real affection from its owners.
Known specifications:
- Type: Stereo receiver / integrated amplifier
- Power output: 100W/ch into 8 ohms, 20Hz–20kHz, both channels driven
- THD: Less than 0.09%
- Frequency response: 20Hz–20kHz
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