Quick Jump
Brand, Model and Release Date
Information about the brand, model release date.
| Manufacturer | Sennheiser |
| Model | HD 660S |
| Release Date | 2017 |
| HifiSpecs Rating | |
| Amazon Rating | |
| Price |
General Specifications
Type, design and features.
| Headphone Type | Over-ear (circumaural) |
| Earcup Design | Open-back |
| Noise Options | None |
| Transducer Technology | Dynamic |
| Microphone | No |
| Connectivity | Wired |
| Cable Length | ~3 m ~9.84 ft ~387.5 in |
| Detachable Cable | Yes |
| Battery Life | - |
| Battery Quick Charge | - |
| Water Protection | No |
| Driver Diameter | 44.1 mm |
| Inputs | |
| Controls | No |
| Foldable | No |
Technical Specs
Tech specifications of the headphones.
| Frequency Response [Hz] | 9 – 41,500 |
| Impedance [Ohms] | 150 |
| Maximum Input Power [mW] | - |
| Maximum SPL | 104 |
| Distortion | < 0,04% |
| Driver Diameter | 44.1 mm |
Product Dimensions and Weight
Headphone dimensions and weight.
| Length | ~7.7 in ~195.58 mm ~19.56 cm |
| Width | ~7.1 in ~180.34 mm ~18.03 cm |
| Height | ~3.6 in ~91.44 mm ~9.14 cm |
| Weight | ~0.6 lb ~272.16 g ~0.27 kg |
Packaging Info
Package dimensions and weight.
| Shipping Length | ~12.6 in ~320.04 mm ~32 cm |
| Shipping Width | ~10.1 in ~256.54 mm ~25.65 cm |
| Shipping Height | ~4.2 in ~106.68 mm ~10.67 cm |
| Shipping Weight | ~3.4 lb ~1542.21 g ~1.54 kg |
Colors and Accessories
List of available colors and optional accessories.
| Colors |
|
| Replacable Earpads | Yes |
| What's in the Box |
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Price and Warranty
Satisfaction is (not) guaranteed.
| Warranty | 2 Years |
| Manufacturer URL | https://en-us.sennheiser.com/ |
| Amazon |
Personal Review
"My experience owning and using the Sennheiser HD 660 S Headphones has been mostly positive. Despite feeling slightly plasticky, these headphones are incredibly comfortable, delivering high-quality sound across all frequencies. The open-back design captures intricate details exceptionally well, enhancing the overall audio experience. However, there are drawbacks such as sound leakage due to the open-back design and the need for a powerful DAC or sound card. Even so, for those in search of a superior audio experience, these headphones are worth the investment."
— Yaki Eliyayev
Related Comparisons
Differences between Sennheiser HD 660S and other speakers
Disclaimer: The data and facts on this website are provided on "as is, as available basis" without warranty of any kind. HiFiSpecs.com is not responsible for any errors and possible mistakes in the information it publishes. Double check all the information directly on the manufacturer sites.