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Sennheiser HD 490 PRO Open-Back Professional Headphone
Against a new price that sits in the same general neighborhood, US$429 is a touch above this used market’s center, but not by much. With recent comparables at a median of US$410 and a 75th percentile of US$419, this asking price is a bit ambitious rather than a slam-dunk bargain; I’d want a little more included value or a very clean condition story to feel great about it.
That said, this is a well-regarded open-back that’s aimed at serious listening and mixing, with a balanced, resolving presentation and an easy-to-drive profile that makes it practical for desktop use. If it’s genuinely lightly used, from the original owner, and comes with the stock accessories, it should still be a worthwhile buy for someone who wants a current-model Sennheiser without paying full retail.
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.
