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  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 650 vs Sennheiser HD 660 S

Side-by-Side Comparison

Products

Sennheiser HD 650
Sennheiser HD 660 S

Tested using Methodology v1.5

Updated Apr 02, 2024 10:53 PM

SEE PRICE
BestBuy.com

Tested using Methodology v1.5

Updated Jun 27, 2024 03:04 PM

SEE PRICE
Amazon.com
Sennheiser HD 650 Picture
Sennheiser HD 660 S Picture
TypeOver-ear
EnclosureOpen-Back
WirelessNo
TransducerDynamic
Noise CancellingNo
MicNo
TypeOver-ear
EnclosureOpen-Back
WirelessNo
TransducerDynamic
Noise CancellingNo
MicNo

Variants

  • HD 650 (Gray)
  • HD 660 S

Review

See Sennheiser HD 650 review

See Sennheiser HD 660 S review

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Our Verdict

Sennheiser HD 650

Sennheiser HD 660 S

The Sennheiser HD 650 and the Sennheiser HD 660 S are very similar-performing over-ear, open-back headphones. With almost identical sound profiles and build qualities, there is little to choose between these cans. The biggest difference is comfort: despite identical clamping forces, the HD 650 don't feel quite as tight as the HD 660 S, so listeners with a larger head or who enjoy very long listening sessions might prefer the HD 650s.

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