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Notice: We're proud to introduce Test Bench 2.0, which overhauls our audio measurements, with new tests and usages. There's even a brand new multi-target graphing tool! You can read all about this in our changelog, featuring commentary from our Test Designer, Pierre. We'll also be holding an AMA on our Discord Channel on May 1.
- Table of Contents
- Top
- Main Differences
- Sound
- Design
- Isolation
- Microphone
- Active Features
- Connectivity
- Comments
Sennheiser HD 600 vs Sennheiser HD 660 S
Side-by-Side Comparison
Products
Sennheiser HD 600
Sennheiser HD 660 S
Tested using Methodology v2.0
Updated Apr 22, 2025 12:53 PM
SEE PRICE
Amazon.comTested using Methodology v1.5
Updated Jun 27, 2024 03:04 PM
SEE PRICE
Amazon.com
TypeOver-Ear
Noise CancellingNo
EnclosureOpen-Back
Bass AmountUnderemphasized (-5 dB)
WirelessNo
TransducerDynamic
Treble AmountBalanced (0 dB)
MicNo
Sound SignatureFlat
TypeOver-ear
Noise CancellingNo
EnclosureOpen-Back
WirelessNo
TransducerDynamic
MicNo
Variants
- HD 600 (Black)
- HD 660 S
Our Verdict
Sennheiser HD 600
Sennheiser HD 660 S
The Sennheiser HD 600 and the Sennheiser HD 660 S are similar over-ear, open-back headphones, but the HD 600 are a better choice for audiophiles who prefer a more balanced sound and a wider, more speaker-like soundstage. Their bass- and mid-range responses are comparable, but the HD 600 have a brighter and more present treble, while the HD 660 S' veiled treble range can sound dull. The underemphasized treble of the HD 660 S may be preferable if you find sounds in the higher frequencies particularly piercing or painful, but audiophiles will likely find the HD 600 sound more balanced.