Sennheiser
Sennheiser HD 660S2
4.6(3,200)
8.9
The Sennheiser HD 660S2 is an open-back audiophile headphone that delivers reference-quality sound with improved bass response over its predecessor. Ideal for critical listening, mixing, and home hi-fi setups.
$499
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Overview
Pros
- Reference-quality audiophile sound
- Improved bass response over the original HD 660S
- Incredibly natural and detailed midrange
- Supremely comfortable velour ear pads
Cons
- Open-back design leaks sound and offers no isolation
- Wired only, no Bluetooth
- Benefits greatly from a dedicated headphone amp
- Not suitable for outdoor or commute use
Specifications
| Driver | 42mm dynamic transducer |
| Frequency Response | 8 Hz - 41,500 Hz |
| Impedance | 300 ohms |
| Design | Open-back, over-ear |
| Cable | Detachable 6.35mm and 4.4mm balanced cables included |
| Sensitivity | 104 dB SPL/V |
| Weight | 260 g (without cable) |
| Connector | 6.35mm / 4.4mm balanced |
Price History
Current
$499
Lowest
$389
Highest
$499
$459Aug
$494Sep
$484Oct
$389Nov
$459Dec
$499Jan