Over-Ear Headphones · owner-verdict comparison

Sennheiser HD 650 vs Sonos Ace Ultra: what real owners say

Real owners lean toward the Sennheiser HD 650: 75% of 316 owners recommend it, vs 56% of 18 for the Sonos Ace Ultra.

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

Sennheiser HD 650

75%of 316 owners recommend
75% recommend · 11% neutral · 14% don't
Owners praise
  • Natural, balanced tonality that just "sounds right"
  • Lush, lifelike midrange and vocals
  • Non-fatiguing for hours of relaxed listening
Owners complain about
  • Rolled-off, light sub-bass that often needs EQ
Full owner report →

Sonos Ace Ultra

56%of 18 owners recommend
56% recommend · 22% neutral · 22% don't
Owners praise
  • Clear sound upgrade over the original Ace, especially in the bass
  • Pulling TV audio from a Sonos soundbar to the headphones works well for some owners
  • Comfortable fit
Owners complain about
  • The TV audio link to a Sonos soundbar drops out, picks up static, or fails to connect for a few owners, and one returned a pair over it
  • A few owners still rate rivals higher, such as the AirPods Max 2 overall or Bowers & Wilkins headphones for music
Full owner report →

Which should you buy?

Get the Sennheiser HD 650 if
  • ✓Listeners wanting warm, non-fatiguing sound for long sessions
  • ✓Vocal, acoustic, jazz, and classical lovers
  • ✓Home producers wanting a mixing reference
  • ✓Buyers wanting durable cans that last decades with an amp
Skip it if
  • Bassheads wanting deep sub-bass extension
  • Those needing a wide soundstage and precise imaging
Get the Sonos Ace Ultra if
  • ✓Sonos soundbar owners who want to watch TV on headphones
  • ✓Original Ace owners who want more bass
Skip it if
  • Buyers counting on the soundbar link to work without dropouts from day one

What Sennheiser HD 650 owners say

“What an incredible difference they make to everything I had before! You can listen to a track and hear subtle details that you did not even know they existed. Wow!”
— @marco83 on YouTube
“HD650 with a bum driver, but I was able to solider the voice coil back on, so they work normally again. I had a pair 15 years ago and always regreted selling them.”
— kindofbluetrains on Reddit
“I find the HiFiMan Sundara & the Fiio FT1 Pro both more useful for mixing - the Sennheisers have a much more condensed/flat sound with less bass extension than either of those”
— @reallyoldcob on YouTube

What Sonos Ace Ultra owners say

“I think these sound leagues above the original Ace tho thanks to that custom dual-ring magnet motor. The bass is deep and tactile while the sound stage is far more wide and open in comparison to its predecessor.”
— @ventus77777-h on YouTube
“I have the Ace Ultra and i love them....especially with my Sonos Theatre system...i had the first ones and i like these ones more....no complaints whatsoever”
— @SpankyGolfaddict65 on YouTube
“do NOT buy these for TV audio swap. the feature sucks. source: i own these headphones.”
— @Beanz0911 on YouTube

Sennheiser HD 650 vs Sonos Ace Ultra: frequently asked questions

Is the Sennheiser HD 650 or the Sonos Ace Ultra better?

Real owners lean toward the Sennheiser HD 650: 75% of 316 owners recommend it, vs 56% of 18 for the Sonos Ace Ultra.

Who should get the Sennheiser HD 650?

Owners point the Sennheiser HD 650 at listeners wanting warm, non-fatiguing sound for long sessions, and vocal, acoustic, jazz, and classical lovers.

Who should get the Sonos Ace Ultra?

Owners point the Sonos Ace Ultra at sonos soundbar owners who want to watch TV on headphones, and original Ace owners who want more bass.

What do owners complain about?

The most-cited downside of the Sennheiser HD 650 is rolled-off, light sub-bass that often needs EQ. For the Sonos Ace Ultra, it's the TV audio link to a Sonos soundbar drops out, picks up static, or fails to connect for a few owners, and one returned a pair over it.