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The harman/kardon 330B is a classic mid-1970s (1974–1976) stereo receiver, celebrated for its warm analog sound and minimalist styling, with the black/green dial and the translucent red power button that illuminates when on. It's a solid-state unit, typically producing 20-25 watts per channel into 8Ω and features "Twin Power" design, with separate power supplies for each channel. In addition to some cosmetic detailing--in-house--our tech performed the following:Fixed shorted outputsReplaced defective capacitorsReplaced lamps with LEDReplaced power resistorsReplaced broken fuse holders (L/R Channels)Replaced all electrolytic capacitorsReplaced fuse holdersEverything was tested and found to be fully functional and sounding nice and warm. It's ready to take on another half century of work looking and sounding fantastic. Power Output: Rated at 20-25 Watts Per Channel (WPC) into 8ΩInputs: Phono (MM), AUX, and TapeOutputs: A/B speaker switching, supporting 8–16 ohm speakersTuning: Analog AM/FM with signal strength and tuning metersCosmetic Condition: Light cosmetic wear to face & top (see photos). Back panel has a rusty area at upper right (see photos). Electronic Condition: ExcellentIn the Milwaukee Area? Stop in our shop to inspect/demo
At US$375, this lands above the 75th percentile of your recent comparable market (US$324) and well over the US$172 median, so it reads as ambitious rather than fair value. It is not outrageously off-market, but it is priced at the top end of what similar used listings have been asking.
The upside is that this is a well-liked vintage Harman Kardon receiver line, and buyers usually chase these for their warm, easygoing sound and classic build. If it’s clean, original, and fully functional, the appeal is real; at this price I’d want strong proof of service history, quiet controls, and properly working channels before jumping in.
Independent perspective — not a price guarantee. Always verify condition, accessories and provenance before purchase.
Harman Kardon traces its origins to 1953, when Dr. Sidney Harman and Bernard Kardon, both engineers frustrated with conservative audio manufacturing at the David Bogen Company, invested $5,000 each to launch their venture in Westbury, New York. Their debut product, the Festival D1000, became the world's first compact AM/FM hi-fi receiver, blending breakthrough technology with sleek design to make high-fidelity sound accessible beyond technical enthusiasts. Pioneering innovations like the 1958 Festival TA230 stereo receiver, the 1959 Citation II ultra-wide bandwidth tube amplifier, and the 1970 CAD5 hi-fi cassette recorder with Dolby noise reduction cemented their legacy in simplifying premium audio for the home.
The brand focuses on integrated receivers, amplifiers, tuners, and speakers that emphasize performance, reliability, and elegant industrial design. Over decades, it expanded into home theater systems and automotive audio, powering systems in vehicles from Land Rover and BMW to Volvo and Polestar. While not delving into turntables, DACs, headphones, or cables, Harman Kardon prioritizes cohesive hi-fi components that deliver warm, detailed sound without unnecessary complexity.
Harman Kardon holds a solid mid-tier position in the hi-fi market, renowned among knowledgeable buyers for its enduring quality and value rather than ultra-high-end exotica or vintage collector status. Now part of Harman International, it appeals to discerning listeners seeking dependable, stylish gear that echoes its innovative heritage without commanding boutique premiums.
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