Enjoy your music on a totally new level with the HD 660S2 from Sennheiser, the improved successor to the HD 660S with audiophile specs and greatly enhanced bass response. The HD 660S2 delivers a deeply moving auditory experience thanks to features like an optimized steel mesh surround, improved transducer airflow, and lighter weight, higher impedance aluminum voice coils, which deliver more impact and extended sub-bass performance, so you can hear the lowest pianos notes and the deepest bass drum hits without sacrificing comfort or natural sound reproduction.
The open-back design and ultrasoft velour earcups of these over-ear headphones ensure extreme comfort during extra-long sessions, and perfectly channel-matched drivers within ±1 dB provide a truly intimate, high-fidelity listening experience. The HD 660S2 comes with two detachable cables in 1/4 unbalanced and 4.4mm balanced flavors, and the headphones also include a handy 1/4 to 3.5mm adapter and a convenient carry pouch.
Dive Deeper into Your Music
Enjoy your music on a totally new level with the HD 660S2 from Sennheiser, the improved successor to the HD 660S with audiophile specs and greatly enhanced bass response. The HD 660S2 delivers a deeply moving auditory experience thanks to features like an optimized steel mesh surround, improved transducer airflow, and lighter weight, higher impedance aluminum voice coils, which deliver more impact and extended sub-bass performance, so you can hear the lowest pianos notes and the deepest bass drum hits without sacrificing comfort or natural sound reproduction.
The open-back design and ultrasoft velour earcups of these over-ear headphones ensure extreme comfort during extra-long sessions, and perfectly channel-matched drivers within ±1 dB provide a truly intimate, high-fidelity listening experience. The HD 660S2 comes with two detachable cables in 1/4 unbalanced and 4.4mm balanced flavors, and the headphones also include a handy 1/4 to 3.5mm adapter and a convenient carry pouch.
More Impact and Emotion
Headphones that Feel as Great as They Sound
Update to a Legend
Key Technical Highlights
- Optimized airflow around the transducer, decreasing air leakage and increasing low-frequency acoustic pressure
- Lightweight Duofol aluminum voice coils with 300-ohm impedance for better electrical damping and improved detail retrieval
- Twice the sound pressure than previous models at 20 Hz, improving the impact of percussion and electronic music
- Stronger response above 5 kHz for more perceived clarity, smoother response for more natural reproduction
- Uniquely powerful vented magnet system for minimized distortion
- 38mm high-performance dynamic drivers
- Steel mesh baffle for less permeability and increased but natural bass response
- Excellent balance and superior imaging through matched acoustic systems
Sennheiser HD 660S2 Specs
Headphone
| Earpiece Design | Over-Ear (Circumaural), Open-Back |
| Earpiece Swivel | No |
| Earpiece Connection / Wearing Style | Headband, Wired |
| Foldable | No |
| Driver Type | Dynamic |
| Driver Size | 1.5" / 38 mm |
| Diaphragm | Aluminum |
| Voice Coil | Copper-Clad Aluminum Wire |
| Impedance | 300 Ohms |
| Active Noise Cancellation | No |
| Full Remote OS Support | None |
Performance
| Frequency Response | 8 Hz to 41.5 kHz |
| Resonant Frequency | 70 Hz |
| Sensitivity | 104 dB SPL/V |
| Matching Tolerance | 1 dB |
| Maximum Sound Pressure Level (SPL) | 104 dB |
| Total Harmonic Distortion (THD) | 0.04% |
Wired Connectivity
| Audio Connector to Source | 1 x 1/4" TRS Male 1 x 4.4 mm TRRRS Male |
| Adapter (Included) | 1/8" / 3.5 mm TRS |
| Cable Design | Y-Type, Straight, Detachable |
| Audio Connector to Earpiece | 2 x 2-Pin Male |
| Cable Length | 5.9` / 1.8 m (Straight Cable) |
| Cable Color | Black |
Physical
| Color | Black |
| Environmental Protection | None |
| LED Indicator | No |
| Material of Construction | Aluminum, Plastic, Steel, Velour |
| Weight | 9.2 oz / 260 g |
Packaging Info
| Package Weight | 1.405 lb |
| Box Dimensions (LxWxH) | 10.7 x 7.5 x 4.1" |
In the Box
- Sennheiser HD 660S2 Wired Over-Ear Headphones
- 1/4" Headphone Cable
- 4.4mm Headphone Cable
- 1/4" to 3.5mm Adapter
- 2-Year Manufacturer Warranty
No posts found
