The HD 660 S 2 Audiophile Headphones thundering timpani, melodic sound of a guitar, impressive singing voice of your favorite artist, and beat of electronic dance music, nothing creates drama like powerful bass. Ideal for music lovers, the non-fatiguing, high-end HD 660S2 now delivers even more impact and emotion. Our engineers optimized the HD 660S's surround, transducer airflow, and coil to double the sound pressure at the lowest octaves. You can feel the lowest note on the piano (27.5 Hz) or the kick of the bass drum (45-60 Hz) as if you were there at the recording studio, allowing you to pick out individual instruments and discover new sonic details.
| Brand | Sennheiser |
| Model | HD 660 S 2 |
| Type | Ear-Cup |
| Connectivity | 2.5mm Jack |
| Color | Black |
| Wireless Technology | None |
| Form Factor | Headband |
| Number Of Earpieces | Double |
| Country/Region Of Manufacture | Ireland |
| Microphone Type | None |
| MPN | 700240 |
| Unit Type | Unit |
| Impedance | 300 ohm |
| Cable Length | 1.8m |
| Driver Size | 38mm |
| Manufacturer Warranty | 2 Years |
| Frequency Range | 8hz - 41,500 Hz |
| UPC | 810091270370 |
What stands out about the brand Sennheiser is the balanced audio that doesn’t get harsh at higher volumes.