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Fixed price! Harman kardon onyx studio 9 bluetooth, aux best quality speaker in perfect condition without any damage. Connection via bluetooth. Aux connection complete set: speaker, power cable. (No b
Against your sample, €150 is well above the €77 75th percentile and almost 2.4× the median €63, so this reads as ambitious rather than fair. For a used portable speaker, that only makes sense if the condition is exceptional and the bundle is genuinely complete; otherwise it is priced far past the normal market for recent comparables.
That said, this model is well-liked for its big, room-filling sound and easy Bluetooth use, so a clean unit with original cables and accessories can still be attractive. The upside is convenience and fewer unknowns if it is from a careful owner, but at €150 I would want strong evidence of mint condition, battery health, and a truly full accessory set before paying up.
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.
