Superlux HD-660From real comments

Verdict distilled from 16 mentions across 11 aspects in comments under product review videos.

Positive sentiment50%
PROS 50%
CONS 50%

Rank based on 16 mentions across 11 aspects

View the verdict as

Buy this if...

  • You want an affordable Beyerdynamic DT770-style closed-back headphone
  • You mainly use headphones for gaming or casual listening rather than critical studio work
  • You're willing to EQ down the treble or burn them in for better balance

What users love

Skip this if...

  • You're sensitive to harsh or painful treble and don't want to EQ
  • You need strong, present bass out of the box
  • You need real Beyerdynamic replacement pads to fit

What users complain about

Compare in seconds

Based on user comments

Best choice
1Premium
Transparency ModeNoise CancellationSound QualityiOS/Apple Ecosystem Lock-inDurability/Crackling ConcernsHigh Price
Transparency Mode
Noise Cancellation
Sound Quality
iOS/Apple Ecosystem Lock-in
Durability/Crackling Concerns
High Price
2Mid
Signature haptic bass slider
Signature haptic bass slider
3Premium
Exceptional comfortStrong for gaming and imagingImprovement over HD 650/6XXIrritating L/R lettering inside padsBuild/pad quality issues reportedHigh price relative to alternatives
Exceptional comfort
Strong for gaming and imaging
Improvement over HD 650/6XX
Irritating L/R lettering inside pads
Build/pad quality issues reported
High price relative to alternatives
4Mid
Exceptional durabilityBalanced, quality soundFully repairable/modularCable-to-driver cutout issuesStrong clamping forceUnconventional cable entry side
Exceptional durability
Balanced, quality sound
Fully repairable/modular
Cable-to-driver cutout issues
Strong clamping force
Unconventional cable entry side
5Mid
Exceptional comfort
Exceptional comfort
Best value
6Premium
Smooth, detailed treble and clarityStrong perceived value and end-game satisfactionTight, deep bassHigh price pointSibilant or fatiguing treble for sensitive earsTight fit for larger ears
Smooth, detailed treble and clarity
Strong perceived value and end-game satisfaction
Tight, deep bass
High price point
Sibilant or fatiguing treble for sensitive ears
Tight fit for larger ears
7Premium
Excellent Call and Mic QualityAll-Day ComfortIndustry-Leading Noise CancellationHigh Price PointInconsistent Call Clarity in Certain EnvironmentsBluetooth Pairing Problems
Excellent Call and Mic Quality
All-Day Comfort
Industry-Leading Noise Cancellation
High Price Point
Inconsistent Call Clarity in Certain Environments
Bluetooth Pairing Problems
8Premium
Neutral, accurate soundExceptional comfortGreat detail and resolutionPerceived as 'boring' by some listenersElevated mid-bass/sub-bass not fully neutralSound highly dependent on seal and source
Neutral, accurate sound
Exceptional comfort
Great detail and resolution
Perceived as 'boring' by some listeners
Elevated mid-bass/sub-bass not fully neutral
Sound highly dependent on seal and source
9Budget
Exceptional value for moneyOutstanding comfortDetailed, neutral sound signatureLight or rolled-off bassCheap-feeling build qualityPerceived treble grain/sibilance
Exceptional value for money
Outstanding comfort
Detailed, neutral sound signature
Light or rolled-off bass
Cheap-feeling build quality
Perceived treble grain/sibilance
10Budget
Excellent Sound Quality for PriceComfortable for Extended UseNo Charging RequiredLimited Noise IsolationBuild Quality ConcernsNot Secure for Active Use
Excellent Sound Quality for Price
Comfortable for Extended Use
No Charging Required
Limited Noise Isolation
Build Quality Concerns
Not Secure for Active Use
You are here
31Budget
Superlux HD-660
Great value for priceBeyerdynamic DT770 alternativeBalanced with EQ adjustmentHarsh, fatiguing trebleHigh international shipping costLacks depth compared to competitors
Superlux HD-660
Great value for price
Beyerdynamic DT770 alternative
Balanced with EQ adjustment
Harsh, fatiguing treble
High international shipping cost
Lacks depth compared to competitors

Who wins on what

Ranked by what users actually praise

Overall Impression

Sound signature leans bright with a bass shortfall. Multiple commenters describe the treble as harsh or even painful to the ears without EQ, while one user says the bass is almost non-existent. Turning down the treble is suggested as a fix to reach a more balanced sound, and one user hoped burn-in would improve things over time. A related HD330 model was described as having the opposite issue with excessive bass and unclear vocals.

Seen as a strong value alternative to pricier studio headphones. Several users directly compare the HD-660 to the Beyerdynamic DT770, calling it a well-regarded and inexpensive clone or alternative. One reviewer's audience noted the review remained relevant years later, praising the product for punching above its weight for the price. Another user found it good enough for gaming despite not needing serious sound work, reflecting its budget-friendly appeal.

Practical fit and compatibility questions linger. Buyers raised concerns about ear cup size, noting that real Beyerdynamic replacement pads reportedly don't fit properly. Others asked about sound leakage and which impedance version to choose when pairing with an audio interface. One comment also warned against wearing the closed-back design in a way that could damage the membrane, pointing to build and usage caveats beyond pure sound quality.

Outdated / Not-accurate data?