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Product detailSKU #1500000393301

SennheiserHD 660 S 2 Wired Audiophile Stereo Headphones

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Sennheiser HD 660 S 2 Wired Audiophile Stereo Headphones
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Independent shopping perspective

The Korena take

HD 660 S 2 is a wired, open-back stereo headphone built around a warm balance, smooth treble, and added emphasis in the lowest octaves. Revised airflow around the transducer, the surround, and the coil are intended to make individual instruments easier to follow while keeping impulse response clean. Its open construction and comfort-focused design suit extended listening, while 42 mm transducers underpin the specified 8 Hz–41.4 kHz response range.

Sennheiser HD 660 S 2 Wired Audiophile Stereo Headphones product detail
Product studySennheiser HD 660 S 2 Wired Audiophile Stereo Headphones
Sennheiser HD 660 S 2 Wired Audiophile Stereo Headphones alternate view
Alternate view

Strong match

Who this is for

  • Extended listening where separating individual instruments and uncovering subtle sonic details is the priority.

Consider the trade-offs

When to look elsewhere

  • Listeners whose setup calls for a closed-back headphone design.

Final check

Know before you order

  1. 01The HD 660 S 2 is wired and uses an open-back design.
Sennheiser HD 660 S 2 Wired Audiophile Stereo Headphones close-up

Product questions

Before you decide

Straight answers to the questions shoppers most often ask about this product.

01What type of design does the HD 660 S 2 use?

It uses an open-back design.

02What is its specified frequency response?

The specified frequency response is 8 Hz–41.4 kHz.

Reference

Full specifications

The complete catalog record, organized around the decisions musicians make when comparing gear.

1 detailsSound
Frequency Response
8Hz–41.4kHz
1 detailsBody & build
Color
Black
2 detailsOther
Harmonic Distortion
<0.04%
Transducers
1.653 inch (42 mm)

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