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  1. Home
  2. Headphones
  3. Compare
  1. Table of Contents
  2. Top
  3. Main Differences
  4. Design
    1. Style
    2. Comfort
    3. Controls
    4. Breathability
    5. Portability
    6. Case
    7. Build Quality
    8. Stability
    9. Headshots 1
    10. Headshots 2
    11. Top
    12. In The Box
  5. Sound
    1. Sound Profile
    2. Frequency Response Consistency
    3. Raw Frequency Response
    4. Bass Accuracy
    5. Mid Accuracy
    6. Treble Accuracy
    7. Peaks/Dips
    8. Imaging
    9. Passive Soundstage
    10. Virtual Soundstage
    11. Weighted Harmonic Distortion
    12. Test Settings
  6. Isolation
    1. Noise Isolation
    2. Leakage
  7. Microphone
    1. Microphone Style
    2. Recording Quality
    3. Noise Handling
  8. Active Features
    1. Battery
    2. App Support
  9. Connectivity
    1. Bluetooth
    2. Non-Bluetooth Wireless
    3. Wired
    4. PC Compatibility
    5. PlayStation Compatibility
    6. Xbox Compatibility
    7. Base/Dock
  10. Comments

Sennheiser HD 6XX vs Sennheiser HD 660S2

Side-by-Side Comparison

Products

Sennheiser HD 6XX
Sennheiser HD 660S2

Tested using Methodology v1.5

Updated Jan 19, 2024 05:26 PM

SEE PRICE
Amazon.com

Tested using Methodology v1.5

Updated May 13, 2024 08:59 PM

SEE PRICE
Amazon.com
Sennheiser HD 6XX Picture
Sennheiser HD 660S2 Picture
TypeOver-ear
EnclosureOpen-Back
WirelessNo
TransducerDynamic
Noise CancellingNo
MicNo
TypeOver-ear
EnclosureOpen-Back
WirelessNo
TransducerDynamic
Noise CancellingNo
MicNo

Variants

  • HD 6XX (Midnight Blue)
  • HD 660S2 (Black)

Review

See Sennheiser HD 6XX Review
See Sennheiser HD 660S2 Review
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Our Verdict

Sennheiser HD 6XX

Sennheiser HD 660S2

The Sennheiser HD 6XX are better audiophile headphones than the Sennheiser HD 660S2. While both headphones have a similar design, especially in comfort and build quality, the HD 6XX have a more neutral sound profile, which some users may prefer, and their passive soundstage is significantly more immersive. However, the HD 660S2 come with a dustbag to help protect them when not in use and an additional 4.4 mm balanced audio cable.

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