Sennheiser HD660S2 Open-Back Headphones Headphones keeping total harmonic distortion under

keeping total harmonic distortion under 0

housed in Kokutan striped ebony ear cups

single-ended RCA Digital inputs USB

Proprietary multi-feedback and dual feed-forward error-correction topology using 250W lateral structure high-power MOSFETs

3 Ω at 1 kHz Frequency response 5 Hz - 20 kHz SPL at 94 dB / 1 kHz 16

Sennheiser HD660S2 Open-Back Headphones Headphones keeping total harmonic distortion underThe latest evolution of Sennheiser's legendary HD 600 series, the HD 660S2 delivers a tuning refinement over its predecessor with more extended bass and a smoother overall response, while preserving every bit of the midrange magic that made the series famous. Type and Technology Over ear, open back, dynamic. 38mm transducer with Sennheiser's precision engineered aluminum voice coil. Handcrafted in Ireland. Sound Character Warm, refined, and