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biete meinen alten Harman Kardon HK 6500 Vollverstärker zum Verkauf an. Der Verstärker funktioniert, sollte jedoch überholt werden. Nach dem Einschalten ertönt nach ca. 5 Sekunden eine Art Knacken und er brummt leicht im Betrieb. Habe auch das Gefühl das er wärmer wird als früher. Wird ausdrücklich an Bastler als defekt verkauft. Aufgrund des Gewicht nur Abholung.
This is a buyer’s market for this amp: at €70, it sits well below the €83 25th percentile and far under the €171 median, so the asking price reads as a strong bargain rather than a fair-market listing. Even with the “for parts” label, the gap is large enough that there’s real repair-margin or donor-value upside if the fault is modest.
The HK 6500 is a respected, muscular integrated from Harman Kardon’s better era, known for solid current delivery, a lively but controlled presentation, and enough grunt to wake up tougher speakers. The upside here is obvious if the issue is limited to a simple power-supply, relay, or contact problem, but “for parts” means a buyer should assume no easy fix and only proceed if they’re comfortable troubleshooting or want it for restoration/spares.
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.
See all Harman Kardon listings on RADAR.
