Sennheiser HD660S2 Audiophile Open-Back Headphones

Dive deeper into your music, with the new HD 660S2 Headphones, by Sennheiser.

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 extremely precise yet non-fatiguing sound of the HD 660S2 delivers even more impact with extended sub bass.

With an optimized surround, improved transducer airflow and coil, Sennheiser engineers have doubled the sound pressure at the lowest octaves. This means you can experience the lowest note on the piano (27.5 Hz) or the kick of the bass drum (45-60 Hz) just as if you were there.

The relaxed tone and open-back design make this an extremely comfortable headphone, ideal for long listening sessions at home. With warm tuning, smooth treble, and strong bass, the standard-setter for extended listening is now the standard-setter for extended bass as well.

This warm, inviting signature combined with extended sub bass makes listening uniquely pleasant and rewarding. And with comfort this good, it practically begs you to keep going for endless sessions. That’s how HD 660S2 combines the best of many worlds to give you an intimate experience you won’t want to live without.

The HD 660S2 replaces the previous HD 660S model.

Features

• Natural, relaxed, intimate high-fidelity sound with extra deep, accurate sub bass.
• Optimized surround and diaphragm with new ultra-light aluminium voice coil with 300 Ohm impedance.
• 38 mm high-performance transducers built in Ireland.
• Steel mesh damping follows driver geometry to control air displacement.
• Magnetic yoke includes milled air vents for optimal ventilation.
• Uniquely powerful vented magnet system for minimal distortion.
• Exceptional comfort and build quality.
• The open-back design and plush ear cushions offer exceptional breathability for long listening sessions.
• Low total weight and ergonomic headband,. combined with excellent build quality.
• Global 2-year warranty offers peace of mind.

Specifications

• Transducer Principle: Dynamic, Open-Back
• Transducer Size: 38 mm
• Frequency Response: 8 Hz - 41,500 Hz
• Impedance: 300 Ohms
• Sound Pressure Level (SPL): 104 dB (1 V)
• Total Harmonic Distortion (THD): < 0.04% (1 kHz, 100 dB)
• Style: Over-Ear
• Weight: 260 g
• Adapter: 6.3 mm (1⁄4 inch) to 3.5 mm
• Connector: 6.3 mm (1⁄4 inch) jack plug, 4.4 mm balanced plug
• Cable Length: 1.8 m
• Magnetic Field: 2.5 mT
• Country Of Origin: Ireland

Included

• HD 660S2 headphones
• 6.3 mm cable (1.8 m)
• 4.4 mm cable (1.8 m)
• 6.3 mm to 3.5 mm adapter
• Carry pouch

More Information

• HD 660S2 Headphones, by Sennheiser