Sennheiser Announces New HD 660 S Improved Open Dynamic Headphones
Sennheiser has launched the new HD 660 S open dynamic headphone. The new model builds on the legacy of the popular HD 650, surpassing the exceptional performance of its predecessor with a new and improved transducer design that, the company says, "delivers lower harmonic distortion for an even more natural, lifelike audio experience." With a lower impedance of 150 ohms, the HD 660 S delivers reference-class fidelity with both stationary and mobile HiRes players.