Enjoy your music on a completely new level. An intimate, relaxed sound signature combines with outstanding precision and exceptional comfort — and now, extended sub bass — for a deeply moving experience.

The non-fatiguing HD 660S2 gives people who love music an intimate way to connect more deeply with their favorite songs and artists. Breathtaking resolution and precision take you closer than ever to instruments and vocalists. Yet the sound is natural and balanced, never harsh or brash.

By doubling the sound pressure at the lowest frequency, we retained incredible precision and balance throughout the sub-, mid-bass, and beyond. Extension on the low end changes everything, creating more space for the sound. Against a deeper backdrop, the highs feel more brilliant, emotions stronger.

The velour earpads can only be described as a tactile pleasure. With the right amount of tension for proper acoustic positioning and supple padding, the headband won’t draw attention away from your music, either. As an open-back design, the HD 660S2 gives your ears an extremely comfortable climate.

High-end Sennheiser headphones like the HD 600, HD 650, and HD 660S are known for their balanced, natural sound. The HD 660S2 shares this legacy with a revised 300-ohm coil for cleaner impulse response, a compliant surround for lower resonant frequency, and optimized airflow for better sensitivity.

Do you recognize the feeling of listening to harsh sounds that annoy you for long periods of time? The HD 660S2 has been developed for detailed yet fatigue-free treble reproduction to keep you focused all day long. With comfort this good, you’ll be ready to extend your gaming sessions even further.

Dive deeper into legendary sound.

Ever felt goosebumps from sound so real, as if the source was in the room?

An intimate experience you won’t want to live without.

Double the sub bass heightens your listening experience.

Enjoy your music on a completely new level.

They feel as great as they sound

How do you one-up a line of legends?

Natural, non-fatiguing sound for gamers and streamers.