Hear Your Music Like Never Before
When your ears call for liquid-smooth response, supernatural speed, and effortless instrument reproduction, Sennheiser answers the call with the HD 660S2 Open-back Headphones. These audiophile-grade headphones deliver audio that’s more than crystal clear — a specialized 38mm transducer coupled with an optimized airflow system output incredible audio throughout both ends of the frequency system. Plus, however long you listen, HD 660S2 headphones will stay strong, providing killer clean audio and a comfortable listening experience thanks to its lightweight, durable design and plush velour ear cups.
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Double the sub-bass
The original Sennheiser 660S headphones were favorites of many audiophiles here at Sweetwater, so they couldn’t believe their ears when they heard these new 660S2! By doubling the SPL in the sub-bass frequencies, Sennheiser improved the listening experience of not just the sub-bass range, but across the entire range of human hearing. Believe us, the effect must be heard to be believed!
New voice coil and optimized airflow system
Outside your pair of HD 660S2 headphones, you’ll find a steel mesh that perfectly complements the ventilated driver, providing pure diaphragm travel and tighter production tolerances that combine for reduced turbulence and expansive, natural sound. On the inside, an ultra-light aluminum voice coil with 300 ohms of impedance delivers ultra-quick impulse response. And the improved airflow of the 660S2 magnet’s air gap results in better reproduction across the entire frequency spectrum.
Sennheiser HD 660S2 Open-back Headphones Features:
- Audiophile-grade headphones with liquid-smooth response and effortless instrument reproduction
- Double the sub-bass frequencies of their predecessors makes for an improved listening experience across the entire spectrum
- Open-back design with steel mesh over uniquely optimized airflow system makes for natural sound devoid of turbulence and distortion
- 38mm transducer offers revealing, tack-sharp detail demanded by modern audiophiles
- Lightweight, durable design and replaceable padded ear cups make for a comfortable listening experience for hours or minutes
- Ultra-light aluminum voice coil with 300ohms of resistance delivers ultra-quick impulse fidelity
- Comes with carry pouch, a 1/4-inch plug and 4.4mm balanced plug (both with 6-foot long cables), and a 1/4-inch to 3.5mm adapter
