RADAR is a price search engine. We link to the original listing — we never sell direct. Transactions happen on the source site.
Kopfhörer in tadellosem Zustand, wenig benutzt.
Klingt "fast" so gut wie der Referenzkopfhörer HD 800S, kostet aber nicht mal ¼.
Sehr ausgewogen, detailliert-analytisch, grosse Bühne, leicht und bequem.
Ständer sind nicht Teil des Angebots.
Compared with the usual used alternatives around €201, this one at €190 lands just under the median and looks like a fair-to-good buy rather than a stretch. It is not a bargain-bin outlier, but it is close enough to the middle of the market that the asking price feels sensible for an excellent-condition pair.
The HD660S is well liked for its balanced, easy-listening tuning, solid midrange clarity, and comfortable long-session fit, which makes it an easy recommendation for anyone wanting a refined open-back without chasing hype. In excellent condition, the main upside is getting a known good performer at a sane price; if the pads, cable, and box are all present, this is the kind of listing that is worth moving on if it suits your system and taste.
Independent perspective — not a price guarantee. Always verify condition, accessories and provenance before purchase.
Founded in June 1945 by Dr. Fritz Sennheiser in a farmhouse near Hanover, Germany, Sennheiser began as Laboratorium Wennebostel, producing voltmeters and early microphones amid post-World War II reconstruction. Seven engineers from the University of Hannover joined the founder, quickly pivoting to broadcast microphones like the DM 2 in 1946 and the groundbreaking MD 82 shotgun mic in 1956. Renamed Sennheiser electronic in 1958, the family-owned company passed to second- and third-generation leadership, maintaining its innovative spirit over eight decades.
Sennheiser excels in professional and consumer audio, renowned for microphones, wireless systems, and headphones that set industry standards. Pioneers of the first open-back headphones (HD 414 in 1968) and enduring studio icons like the MD 421 and MD 441, they also produce high-end headphones, earbuds, soundbars, and conferencing solutions. While strong in pro audio like mixers and geophysical gear, their consumer focus centers on headphones and wireless tech rather than amplifiers, speakers, turntables, DACs, or cables.
Sennheiser commands a premium position in the hi-fi market, blending mid-tier accessibility with high-end excellence for discerning buyers and professionals. Trusted for reliability and sonic precision, it appeals to audiophiles seeking reference-grade headphones without boutique obscurity, backed by a heritage of technological firsts that sustains its global leadership.
See all Sennheiser listings on RADAR.
