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Upgraded improved Sennheiser HD-650 headphones, fresh factory original headband and pad, ZMF Perforated Lambskin earpads(nice well cared for condition), pro installed Custom Cans Loading Rings that improve clarity and bass extension. There are some extra pads and some tools from Custom Cans. Also included is a 8' cable with 1/4" 6.35mm connector. They headphones have always been in a non smoking climate controlled environment. They are well well cared for, no dings, no dents, no scratches, no nicks, very very nice. They sound superb, very open and spacious, transparent, dynamic, extended, involving, smooth, natural and musical. They benefit in being used with a quality headphone amp. The Sennheiser HD-650s are the industry standard for audiophiles, recording studio engineers and musicians. The mods improve in bass extension, dynamics, high frequency extension and transarency. The shipping cost includes safe packing, insurance, prompt shipping and tracking number. Buy with confidence, see my feedback. Good Listening, SonnY :)
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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.
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