Sennheiser HD 660S2 Open-Back Audiophile Headphones - Black Bronze | 700240

Sennheiser HD 660S2 Open-Back Audiophile Headphones - Black Bronze | 700240

The HD 660S2 takes the intimate, relaxed sound signature that made the HD 660S a favourite among audiophiles and adds the one thing listeners asked for most: deeper, more impactful sub-bass. The result is a headphone that is equally at home with long, relaxed listening sessions and bass-heavy modern recordings.

Extended sub-bass

Sennheiser's engineers optimised the surround, transducer airflow and voice coil to double the sound pressure at the lowest octaves. The lowest note on a piano and the kick of a bass drum are now reproduced with a physical presence that has to be experienced to be believed.

Audiophile tuning

The warm, inviting signature of the HD 660S2 combines smooth treble, natural midrange and strong, articulate bass. Detail retrieval remains excellent without ever becoming fatiguing, making this an ideal headphone for extended listening.

Open-back comfort

The open-back, circumaural design keeps the soundstage wide and the ears cool. Plush velour ear pads and a lightweight, well-padded headband allow hours of comfortable listening, while the detachable cables make it easy to switch between unbalanced and balanced sources.

Supplied with a 1.8 m cable terminated in a 6.35 mm plug and a 4.4 mm Pentaconn balanced cable, the HD 660S2 is ready for both classic hi-fi systems and modern balanced headphone amplifiers.