Sennheiser

Sennheiser HD 660S2

Open-back, wired, and unbothered by trends - reference-grade detail and a deeper sub-bass than the HD 650 lineage.

Best for critical listening

Specs

TypeOpen-back wired
Impedance300 ohm
Driver38mm dynamic
Needs ampYes

Measured score

Sound 93
Build 86
Value 78
Features 40
PRICE $$$

Pros & cons

  • Reference detail + soundstage
  • Deeper bass than HD 650
  • Built to last / repairable
  • Wired only, needs an amp
  • Open-back leaks sound

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