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Key Features
- Reference-Class, Dynamic Wired Headphones
- For Stationary & Mobile High-Res Players
- Very Low Harmonic Distortion
- Tolerances for ±1 dB Accuracy
The HD 660 S Open-Back Dynamic Headphones from Sennheiser are headphones for the passionate audiophile and are crafted for the most demanding listener. Built with a transducer design that delivers lower harmonic distortion, they provide a natural, lifelike audio experience and can be used to produce crisp bass, transparent mid-frequency response, and a natural treble when connected to high-res players or portable audio devices.