HD 660 S 2 Refurbished

2026-04-14T07:21:06+02:00

Type: Audiophile Headphones
Price: 399.95

Certified Refurbished

Product has been tested, checked, and thoroughly inspected to meet the same high-quality standards as our new products. Learn More

Natural, relaxed, high-fidelity sound with extra sub bass: Ultra-light aluminum voice coil with 300-ohm impedance for excellent impulse response and an intimate sound with great timbre

Airflow-optimized 42mm high-performance transducers: Improved ventilation due to a uniquely powerful vented magnet system for minimal distortion and air displacement control through steel mesh damping

Double the sound pressure at the lowest octaves: You can feel the lowest note on the piano (27.5 Hz) or the kick of the bass drum (45-60 Hz) as if you were there, at the recording studio

Exceptional comfort and build quality: The open-back design offers exceptional breathability and the plush ear cushions deliver maximum comfort - for long listening sessions

Outstanding quality designed in Germany, made in Ireland: With a frequency response of 8 Hz - 41,500 Hz and detachable, long cables for comfortable desktop use