HD 660S2

Sennheiser HD 660S2 will provide perfect sound in the frequency range from 8 Hz to 41.5 kHz, 42 mm drivers, impedance 300 Ohm, 6.35 mm or 4.4 mm audio jack, sensitivity 104 dB, pleasantly soft ear cups.

The Sennheiser HD 660S2 respond to an extensive survey of preferences among audiophile sound lovers. One of the requirements for faithful listening is the widest possible frequency range of reproduction. For example, the lowest piano A, i.e. 27.5 Hz, is very difficult to reproduce, as well as the dynamic 50 Hz of a big drum or timpani at full acoustic level, vivid fullness and with perfectly faithful rendering.

Therefore, the Sennheiser HD 660S2 dynamic open headphones model was developed, which will fully satisfy these wishes of audiophiles. The thunderous crescendo of timpani, the pulsation of the sub-bass rhythm of electronic music or the acoustically materialized bass strings in jazz compositions will infuse the listening experience with the true atmosphere of completely authentic listening to what the sound masters have recorded.

Loud bass

You will already discover a new listening experience in classic CD recordings, but you can fully enjoy the perfection of the HD 660S2 when listening to Hi-Res recordings. These headphones truly reproduce them fully thanks to more precise control of the movement of the diaphragm, microscopically accurate processing of steel parts and the agility of an extremely light aluminum voice coil, giving the newly designed diaphragm the ability of high-speed impulse response.

Premium comfort

The elliptically designed open headphones are ideal for long-term comfortable listening. Logo and design parts in luxurious bronze color. Even the most intimate details of the musical sound are complemented by unexpectedly strong and powerful bass, unheard of in open headphones.

The packaging is full

• HD 660 S2
• Unbalanced connecting cable with 6.35 mm jack connector (1.8 m)
• Balanced connection cable with 4.4 mm connector (1.8 m)
• Reduction of 6.35 mm to 3.5 mm
• Storage bag