Over-Ear Headphones · owner-verdict comparison

K712 Pro vs Sennheiser HD 660S2: what real owners say

Real owners lean toward the Sennheiser HD 660S2: 61% of 231 owners recommend it, vs 50% of 80 for the K712 Pro.

Verdicts aggregated from Reddit, enthusiast forums, and YouTube owner comments — affiliate reviews excluded. Sample sizes differ; judge accordingly. How we score

K712 Pro

50%of 80 owners recommend
50% recommend · 28% neutral · 22% don't
Full owner report →

Sennheiser HD 660S2

61%of 231 owners recommend
61% recommend · 20% neutral · 19% don't
Owners praise
  • Lush, natural mids and vocals with classic Sennheiser timbre
  • Deeper, richer bass with much better sub-bass extension than the older 6x0
  • Excellent imaging and soundstage for gaming and movies
Owners complain about
  • Dark, veiled or muffled-sounding presentation
  • Loses the forward midrange magic of the cheaper 600/650
Full owner report →

What K712 Pro owners say

“I keep coming back to them frequently as I love their weight, fit and sound, especially for mixing music.”
— _crackerjack73_ on Reddit
“Recommendation for the AKG 712 Pro, and perhaps tryout the k702 earcups for more detailed sound and wider soundstage.”
— Bastelkorb on Reddit
“the 712 fell way short with boosted bass that created a muddled midrange and a tepid soundstage not as pinpoint accurate and open as the other 7 series.”
— rajmahid on Reddit

What Sennheiser HD 660S2 owners say

“I've had it for 5 years now and I still consider it the best of the 600 series”
— @o.f.ftrack3444 on YouTube
“They are my go-to primary headphones.”
— @scottlowell493 on YouTube
“At $250-$350 I would consider giving these a go at $600 they are a pass.”
— @mindhead1 on YouTube