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Te koop aangeboden: de sennheiser hd 660s2, een hoogwaardige open-back hoofdtelefoon die bekend staat om zijn gedetailleerde en natuurlijke geluidsweergave. Deze hoofdtelefoon is ideaal voor audiofiel
The Sennheiser HD 660S2 is a refined open-back headphone that delivers cleaner highs and tighter bass than its predecessor, making any listing under €300 worth a close look. At €300, this asking price sits just above the median of €277 from your database of four recent EUR listings, placing it squarely in the fair range between the 25th percentile (€242) and 75th percentile (€352). It is not a bargain, but it is a honest, competitive price for a well-maintained unit in the current used market.
This headphone earns its reputation for smooth, natural tonality and excellent detail retrieval without fatigue, ideal for long listening sessions across genres. Its improved driver design offers lower distortion and faster decay, giving it a modern edge while retaining the classic HD 600-series comfort. At a fair price like €300, the real upside lies in securing a proven performer with minimal compromise—especially if the listing includes original cables and accessories, which adds tangible value and reduces the need for immediate upgrades.
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.
