The powerhouse open-back headphone
Connects you to the deepest corners of your music collection.
HD 660S Refurbished
The perfect blend of power and control.
Accessories and Cables
2 years manufacturer warranty
30-Day Free Return
Limited Stock
Certified Refurbished
Products that have been tested, checked, and thoroughly inspected to meet the same high-quality standards as our new products.
A Direct Connection To Your Music
Known for their engaging signatures and liquid-smooth response, HD 660S predecessors HD 650 and HD 600 shattered performance barriers in the audiophile headphone category.
From Our Ears To Yours
In just one listen you will understand why the HD 660S is so special. Thousands of listening sessions later its purpose is even clearer.
Meshing Together
The steel mesh found on the HD 660S drive unit is interesting in design but most impressive when it comes to performance.
Capability, Meet Versatility.
Today’s audiophile has more component choices than ever.
Handled with care
Every HD 660S has experienced a matching regimen to mate each transducer to its opposite-channel counterpart.
It's all about connection
We packed your HD 660S with a versatile set of essential cables, each one impedance-matched with ultra-low capacitance.
- Hi-fidelity sound
- Open-back design
- 42mm transducers
- Luxurious comfort
- Detachable cable
Specifications
Article number (SKU)
508826
Frequency response (speaker)
9 Hz - 41,500 Hz
Sound pressure level (SPL)
104 dB (1 V)
Impedance
150 Ω
Downloads
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Accessories & spare parts
We are committed to the longevity of our products.
- CH 660 P
