Real owners lean toward the Sennheiser HD 600: 81% of 253 owners recommend it, vs 61% of 231 for the Sennheiser HD 660S2.
Verdicts aggregated from Reddit, enthusiast forums, and YouTube owner comments — affiliate reviews excluded. Sample sizes differ; judge accordingly. How we score
“Son una total MARAVILLA y yo en lo personal lo recomiendo AMPLIAMENTE para todo aquel que se diga llamar audiofilo”— @omariscal39 on YouTube
“estos audífonos son excelentes para mezcla en estudio”— @IGNOTOMX on YouTube
“I have the HD600 and I'm just not a fan because of the total lack of anything lower than upper mid bass and also how narrow the cups are which rub my ears raw”— keenbeans87 on Reddit
Real owners lean toward the Sennheiser HD 600: 81% of 253 owners recommend it, vs 61% of 231 for the Sennheiser HD 660S2.
Owners point the Sennheiser HD 600 at listeners wanting a neutral, balanced reference sound, and people who value long, fatigue-free listening sessions.
Owners point the Sennheiser HD 660S2 at hD6x0 owners wanting more bass extension and treble sparkle, and all-day listeners who want a warm, fatigue-free sound.
The most-cited downside of the Sennheiser HD 600 is can sound bright, harsh or shouty in the highs. For the Sennheiser HD 660S2, it's dark, veiled or muffled-sounding presentation.