Sennheiser HD 660S Headphones
Step Up Your Soundstage
An audiophile standard in the world of open-back headphones, the HD 660S from Sennheiser all but eliminates the barriers between listener and music. Improving on the acclaimed HD 600 and HD 650 models with an all-new transducer and specially ventilated drive unit to consistently control air displacement, the HD 660S takes a step forward in both detail and dynamics. Within each driver’s 38-millimeter diaphragm, an aluminum voice coil delivers exceptional agility and responsiveness to articulate all areas of the frequency spectrum. Encasing this hardware, an open-back design made from steel mesh completes the new ventilation system, giving the HD 660S a wide-open, natural sound and a sleek presentation.
Specs
- Sennheiser
- Type: Open back
- Ear coupling: Over ear
- Drivers: 38 mm dynamic drivers with aluminum voice coils
- Frequency response: 9 Hz – 41.5 kHz
- Nominal impedance: 150 ohms
- SPL: 104 dB
- THD: < 0.04%
- Contact pressure: 6.0 N (± 1 N)
- Connector: Sennheiser 2-pin
- Termination: 6.35 mm or 4.4 mm Pentaconn (balanced)
- Cable length: 9.8 ft (3 m)
- Weight without cable: 9.2 oz (260 g)
Included
- Cable with 6.35 mm termination
- Cable with 4.4 mm Pentaconn termination (balanced)
- 6.35 mm to 3.5 mm adapter
- Storage box
- Owner’s manual
Shipping
Estimated ship date is July 18, 2023 PT.
Payment will be collected at checkout. Cancellations are accepted up to 2 hours after checkout, after which all sales final.
