Real owners lean toward the Sennheiser HD 600: 81% of 253 owners recommend it, vs 36% of 434 for the Bose QuietComfort Ultra Headphones (2nd Gen).
Verdicts aggregated from Reddit, enthusiast forums, and YouTube owner comments — affiliate reviews excluded. Sample sizes differ; judge accordingly. How we score
“I’m loving both Bose models though.”— Zealousideal_Bid2690 on Reddit
“Its very good. quality is top notch”— Adorable_Toe79 on Reddit
“I had the Ultra headphones which caused severe skin irritation. I got rid of them as the only solution was buying third party ear pads which would have changed the sound.”— TheLawPlace on Reddit
“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 36% of 434 for the Bose QuietComfort Ultra Headphones (2nd Gen).
Owners point the Bose QuietComfort Ultra Headphones (2nd Gen) at frequent flyers who want quiet on a plane and a case that fits a carry-on, and glasses wearers and anyone whose head hurts in tighter-clamping headphones.
Owners point the Sennheiser HD 600 at listeners wanting a neutral, balanced reference sound, and people who value long, fatigue-free listening sessions.
The most-cited downside of the Bose QuietComfort Ultra Headphones (2nd Gen) is a background hiss or white noise floor with nothing playing, audible to many owners though not all. For the Sennheiser HD 600, it's can sound bright, harsh or shouty in the highs.