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HD 660S2 (paired with BTD 600 Bluetooth Transmitter)
Sennheiser Sennheiser

HD 660S2 (paired with BTD 600 Bluetooth Transmitter)

Experience enhanced audio with the Sennheiser HD 660S2 headphones, designed for audiophiles seeking deeper bass and emotional impact. Building on the acclaimed HD 660S, these headphones offer a warm, relaxed tone and exceptional comfort for extended listening. Enjoy world-class precision and resolution, now with a more impactful low end thanks to optimized airflow and a revised coil. The 300-ohm impedance and doubled sound pressure in the lowest octaves allow you to truly feel the music. Discover a revelation in comfortable, non-fatiguing, high-end sound with full low-end power.

$479.95

Track Price
In Stock at Moon Audio

Owner Satisfaction

4.4

/ 5

 

Category Rank

2278

/ 6142

#2278 in Headphones

Price vs Category Average

-18%

Below average

Sound Mode

Stereo

/ Stereo

 

Who it's for

  • High-Resolution Wireless Audio
  • Exceptional Long-Term Comfort
  • Optimized Driving Power

Who should skip it

  • Not Truly Wireless
  • Significant Sound Leakage
  • High Total System Cost

Key Specs

Sound Mode

Stereo

Connection Type

Wired

Headphone Fit

Over-the-Ear

Transmitter Form Factor

Desktop

Output Connector Type

3.5mm TRS

Power Source Type

AC Adapter, USB Powered

Encryption Supported

false

Included Microphone Type

No Microphone Included

Features

  • Deeper, impactful bass response
  • Warm, relaxed sound signature
  • Elegant bronze accent styling
  • Open-back design for natural sound
  • Exceptional comfort for long sessions
  • World-class precision and resolution
  • Optimized transducer airflow
  • Revised coil for enhanced performance

What customers say

The Sennheiser HD 660S2 earns praise primarily for its refined sound signature, especially the enhanced, textured bass response which adds warmth across genres. Listeners appreciate the signature Sennheiser clarity remains intact. Comfort is another standout feature; the lightweight, open-back design and plush earpads ensure exceptional long listening sessions. While build quality is robust, some note the materials do not fully match the price point. For new buyers, the mature, engaging sound offers a highly enjoyable experience. The overall consensus is that these headphones deliver a compelling, nonfatiguing performance ideal for critical music enthusiasts.

Hayley

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HD 660S2 (paired with BTD 600 Bluetooth Transmitter)

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$480

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