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Open-Back Headphones · Comparison

The HiFiMan Edition XV meets
the Sennheiser HD 6XX

Flagship-tier bass and comfort at a real-world price.. We tested it head-to-head against the Sennheiser HD 6XX across 7 key dimensions.

HiFiMan Edition XV open-back planar headphone, front 3/4 view
BEST

HiFiMan Edition XV

“Flagship-tier bass and comfort at a real-world price.”

$399MSRP
Our Score
83.0 / 100
Sennheiser HD 6XX open-back headphone, front 3/4 view
VALUE

Sennheiser HD 6XX

“The value king of audiophile headphones.”

$220MSRP
Our Score
71.7 / 100
01

Head-to-Head Breakdown

Tonality
28% of score +
HiFiMan
85
Sennheiser
95
HiFiMan Edition XV

Cameron and Griffin call it a chill, warm tuning that drops HiFiMan's fatiguing treble glare.

Sennheiser HD 6XX

Andrew, Cameron and Griffin call its balance and vocal timbre world-class and rarely wrong.

Detail
18% of score +
HiFiMan
70
Sennheiser
85
HiFiMan Edition XV

Griffin rates detail retrieval good but slightly softened by the underdamped driver.

Sennheiser HD 6XX

Griffin and Andrew rate detail strong for the price, just short of planar resolution.

Soundstage
14% of score +
HiFiMan
85
Sennheiser
20
HiFiMan Edition XV

Cameron says it stages quite nicely, helped by a slight 2kHz scoop.

Sennheiser HD 6XX

Cameron says it has basically no soundstage, an intimate in-head presentation.

Comfort
12% of score +
HiFiMan
95
Sennheiser
50
HiFiMan Edition XV

Cameron and Griffin praise the suspension strap and huge cups for fitting large heads.

Sennheiser HD 6XX

Andrew and Griffin call them clampy out of the box, often needing headband bending.

Build
10% of score +
HiFiMan
85
Sennheiser
95
HiFiMan Edition XV

Cameron notes a solid build with the lighter Gen 2 headband.

Sennheiser HD 6XX

Griffin and Cameron praise the time-tested chassis with replaceable parts.

Trust
10% of score +
HiFiMan
72
Sennheiser
95
HiFiMan Edition XV

HiFiMan is an established audiophile planar brand, though its QC record is uneven.

Sennheiser HD 6XX

Sennheiser's 6-series is a decade-proven staple with easy parts availability.

Bass
8% of score +
HiFiMan
95
Sennheiser
25
HiFiMan Edition XV

Cameron highlights bass that stays flat down to 20Hz, rare for an open-back.

Sennheiser HD 6XX

All three reviewers note the bass rolls off early with no real sub-bass.

02

Strengths & Weaknesses

HiFiMan Edition XV

+ Strengths
  • The Headphone Show panel (Cameron, Griffin, Caleb) crowned it their Passive Headphone Product of the Year for 2025.
  • Cameron highlights bass that stays flat all the way to 20Hz, a rarity among open-backs that usually roll off early.
  • Cameron and Griffin praise the new suspension strap and oversized earcups, which fit large heads without the old HiFiMan clamp.
  • Griffin describes the tuning as chill and warm, finally dropping HiFiMan's fatiguing upper-treble glare.
Weaknesses
  • Griffin notes the treble can still be rocky and underdamped, with a slight upper-treble peak Caleb wanted to EQ out.
  • Because it steps so far back from brightness, Griffin says it can sound overwarmed and short on air for some listeners.
  • Griffin points to a slightly imperfect modal response in the midrange from the underdamped driver.
Key flaw: The Edition XV's warmth is a deliberate choice, and it comes at a cost up top.

Sennheiser HD 6XX

+ Strengths
  • The Headphone Show calls it the indisputable value king of the whole hobby, undercutting newer releases at around 220 dollars.
  • Andrew praises its world-class midrange and vocal timbre, an even balance that rarely sounds wrong.
  • Cameron and Andrew note the time-tested chassis with easily replaceable pads, cables and headband parts.
Weaknesses
  • All three reviewers flag bass that rolls off early, missing the sub-bass slam of planar rivals.
  • Cameron says it has basically no soundstage, giving an intimate, in-your-head presentation.
  • Andrew and Griffin call them clampy out of the box, often needing you to bend the headband to relieve jaw pressure.
Key flaw: The HD 6XX is a specialist, and its gaps are real.
03

The Verdict

Our Bottom Line

The HiFiMan Edition XV wins because it fixes the two things that usually force open-back buyers to spend far more. The panel at The Headphone Show, Cameron, Griffin and Caleb, crowned it their Passive Headphone Product of the Year for 2025, and their reasoning is easy to follow once you hear it.

BEST
HiFiMan Edition XV
HiFiMan Edition XV open-back planar headphone, front 3/4 view

The HiFiMan Edition XV wins because it fixes the two things that usually force open-back buyers to spend far more. The panel at The Headphone Show, Cameron, Griffin and Caleb, crowned it their Passive Headphone Product of the Year for 2025, and their reasoning is easy to follow once you hear it.

Best for:
  • Listeners who want deep bass that stays flat to 20Hz
  • Anyone with a larger head who wants all-day comfort
  • Fans of a warm, non-fatiguing planar sound
  • Buyers who want flagship-adjacent performance near 400 dollars
  • People who value a spacious soundstage over reference neutrality
VALUE
Sennheiser HD 6XX
Sennheiser HD 6XX open-back headphone, front 3/4 view

The Sennheiser HD 6XX is the headphone the entire hobby uses as its reference for value, and nothing has knocked it off that perch. The Headphone Show panel repeatedly calls it the indisputable value king, and Andrew's point is blunt: at roughly 220 dollars it undercuts newer, pricier releases while matching or beating them on the things that matter most.

Best for:
  • Newcomers building a first serious audiophile setup
  • Vocal, jazz and acoustic listeners who prize timbre
  • Budget-conscious buyers who want the safest value bet in audio
  • Owners who want replaceable parts and a decade of service life
  • Anyone who does not need exotic amplification to get good sound
04

Specifications

Spec HiFiMan Edition XV Sennheiser HD 6XX
Driver Planar magnetic Dynamic
Impedance 12 ohm 300 ohm
Sensitivity 92 dB 103 dB
Weight 452 g 260 g
Frequency 8Hz-50kHz 10Hz-41kHz
Cable Detachable Detachable
Read the full Open-Back Headphones review
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