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About this gear
The HD 660 S refines the classic HD 650 formula with lower impedance for easier driving and a slightly more open, detailed presentation. It maintains the warm, musical character of its predecessor while offering improved clarity and a touch more energy in the upper frequencies, making it more versatile across different music genres.
About Sennheiser
German audio pioneer founded in 1945 by Fritz Sennheiser. Renowned for the legendary HD 600 series that defined audiophile headphones, Sennheiser combines decades of transducer expertise with meticulous German engineering. Their range spans from studio monitors to flagship IEMs, consistently setting...
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