Over-Ear Headphones · owner-verdict comparison

HiFiMan HE400se vs Sennheiser HD 620S: what real owners say

Real owners lean toward the HiFiMan HE400se: 80% of 127 owners recommend it, vs 58% of 93 for the Sennheiser HD 620S.

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

HiFiMan HE400se

80%of 127 owners recommend

80% recommend · 9% neutral · 11% don't

Owners praise

Outstanding sound for the price / bargain planar
Wonderful, fast planar bass
Responds beautifully to EQ

Owners complain about

Uncomfortable headband with a pressure hotspot
Hard to drive / needs a proper amp
Treble peaks / harshness that need EQ

Full owner report →

Sennheiser HD 620S

58%of 93 owners recommend

58% recommend · 24% neutral · 18% don't

Owners praise

Surprisingly wide, spacious soundstage for a closed-back design, with several owners saying it rivals or beats open-back headphones in this regard
Excellent comfort and passive isolation, with soft, deep ear cups and padding many describe as some of the best they've worn
Outperforms other closed-backs owners have compared it to, including the DT770, FT1, HDB630, and Noire X

Owners complain about

Treble can be harsh, bright, or metallic-sounding, especially in the upper registers and vocals
Getting a proper seal and comfortable fit is finicky for some, including a protruding headband anchor piece pressing into the ear cup area
Bass can feel weak, anemic, or lacking low-end extension, particularly noticeable for movies and sub-bass-heavy content

Full owner report →

Which should you buy?

Get the HiFiMan HE400se if

✓Budget listeners getting into planar magnetic headphones
✓Users who EQ their headphones for best results
✓Fans of warm, musical, non-clinical sound
✓Value seekers pairing them with a proper amp

Skip it if

Phone-only listeners without a decent amp
People sensitive to headband pressure or hotspots

Get the Sennheiser HD 620S if

✓Gamers wanting a closed-back with wide soundstage for competitive FPS
✓Office/WFH users needing strong passive isolation from surrounding noise
✓Sennheiser 6XX/650 fans wanting similar tonality in a closed-back
✓Listeners willing to apply EQ to unlock the headphone's full detail

Skip it if

People with fit issues who can't get a proper seal for bass
Bass-heads or movie watchers wanting deep sub-bass rumble

What HiFiMan HE400se owners say

“The treble is still tamed, but the bass doesn't seem to roll off. Punchy and fun.”
— @onepieceatatime on YouTube

“they are amazing, the replacement grills smooth out all the peaks and dips”
— @ZdraveBass on YouTube

“Hifiman are known to last about two months. It's only a question of time before they fail and customer service is bad from what I saw.”
— @westsenkovec on YouTube

What Sennheiser HD 620S owners say

“Just got my 620s yesterday, I like it, which is saying a lot for a closed back. I think it’s easily one of the best closed back headphones not only in the price range, just in general.”
— MoonWun_ on Reddit

“Crazy enough, the HD800s and the HD620s share the top spot in my endgame headphones. And the price difference is over €1,000. I just can’t believe what the HD620s deliver for €279.”
— No-Desk-1808 on Reddit

“I think technically the 620s but the design of the ear cups means they have this bit that protrudes into the ear cups (I think the anchor for the headband) and it’s quite uncomfortable (at least for me).”
— gussic on Reddit

HiFiMan HE400se vs Sennheiser HD 620S: frequently asked questions

Is the HiFiMan HE400se or the Sennheiser HD 620S better?

Real owners lean toward the HiFiMan HE400se: 80% of 127 owners recommend it, vs 58% of 93 for the Sennheiser HD 620S.

Who should get the HiFiMan HE400se?

Owners point the HiFiMan HE400se at budget listeners getting into planar magnetic headphones, and users who EQ their headphones for best results.

Who should get the Sennheiser HD 620S?

Owners point the Sennheiser HD 620S at gamers wanting a closed-back with wide soundstage for competitive FPS, and office/WFH users needing strong passive isolation from surrounding noise.

What do owners complain about?

The most-cited downside of the HiFiMan HE400se is uncomfortable headband with a pressure hotspot. For the Sennheiser HD 620S, it's treble can be harsh, bright, or metallic-sounding, especially in the upper registers and vocals.