The Verge reports: [edited]
The H6's sound is instantly engaging and gratifying. Bang & Olufsen has noticeably bumped up the bass response from the first edition while retaining impeccably clear and prominent highs. The extension in both directions is excellent — from growling sub-bass to the tinkliest of treble — and there are no recessed mids to spoil the party either. Compared to analytical or audiophile headphones, the H6s have a definite bass bump.
They are as articulate and as detailed as many of the $1,000 cans I have dotted around my home office. Consider that I have at my disposal the Focal Elear, the Beyerdynamic T5p.2, the Technics T700, and the open-back Audeze EL-8, and I'm favouring a set of cans that costs a fraction of their price. The over-ear H6s are closed-back, and they insulate external sound well, but their presentation of music doesn't feel closed at all. They have a very wide (for their class) soundstage and delightfully precise imaging. I'm getting goosebumps-inducing bass wobble from one spot and hard percussion hits from another.
Besides performance, the H6s are also rich on practicality. These headphones' design is gorgeous in a way that almost everyone can appreciate. But more importantly, the H6s are feather-light and unbelievably comfortable. No creaks, no flaws.