By aspect — in detail
Tonality
Contested · 11 srcSources agree on the SHAPE and split on the verdict. The stock tuning is warm and bass-forward — a Sony house sound, but more refined and 'more neutral and balanced' than the XM5 (tamed treble, tighter bass). One camp, including the most positive pro reviewers, hears that as a genuinely pleasant, consumer-friendly listen and the best-sounding Sony yet; another hears the stock sound as flat, 'hollow' or muddy and reaches for the 10-band EQ, which reshapes it a lot.
Measured
Measures as a warm, gently V-shaped tilt that follows a house/Harman-style curve more closely than the XM5 — SoundGuys calls the bass lift 'subtle rather than overwhelming' on its B&K 5128 rig; the ASR meta-analysis of five pro curves finds the general shape consistent but the treble variable, and notes it already sounds 'less muddy than its predecessor.' The in-app 10-band EQ shifts the balance substantially, and several owners say it needs one.
Where it splits
Pleasant, warm and consumer-friendly out of the box — the best-sounding Sony flagship yet.58%
“It’s a very consumer-friendly sound that works for most genres right out of the box.”
SoundGuys
Flat / 'hollow' / muddy stock — needs EQ to come alive, and even then feels engineered.42%
“there's still a strange hollowness that I can sense no matter how much work I put into the sliders. It feels like "good sound by numbers"”
Tammy Rogers (Tom's Guide)
Broadly praised, with a real caveat. Reviewers agree the low end is punchy, deep and a signature strength — and notably tighter/more controlled than the XM5's. The dissent, mostly from measurement- and audiophile-minded sources, is that it's still over-emphasised and loses to the tightest rivals (e.g. the Bowers & Wilkins Px7 S3).
“The punchy lows are a force to be reckoned with, yet don't overpower.”
TechGearLab
“Sony's typical overemphasis on the low-end is still very much present here.”
Tammy Rogers (Tom's Guide)
Measured
SoundGuys measures a 'tasteful bass lift without drowning the mids' with 'decent treble extension up to 16kHz' on its B&K 5128 rig; the ASR meta-analysis still feels 'some improvements are still needed, especially in the bass region' and flags one pro curve (SuperReview) as a high-bass outlier. Multiple sources note the bass is more controlled than the XM5's.
Lean positive but not unanimous. The dominant read is that vocals and instruments are forward, rich and well-separated; a minority hear them as slightly distant/veiled behind a lower-mid bump. The sound modes (Background, Cinema) reshape the midrange, which colours impressions.
“Midrange vocals and instruments also shine, with a beautiful texture and richness that's incredibly pleasing to the ear.”
TechGearLab
“vocals are a bit distant and slightly veiled with a fairly prominent lower-mid bump in the frequencies.”
RecordingNow
Genuinely split, and both camps describe the same variable top end. Most reviewers — including the measurement crowd — hear the XM5's harsh peaks as tamed, so the highs are smoother and less fatiguing; a minority hear stock sibilance and harshness that EQ has to fix. Measurements find the treble is exactly where pro rigs disagree most, which explains the split.
Measured
SoundGuys measures the presence region tamed versus the XM5 with treble extension to ~16 kHz; the ASR meta-analysis of five pro FR curves finds 'there is significant variation—especially above 3 kHz,' so the top end reads differently depending on seal, rig and EQ — which is why one listener hears 'smooth' and another hears 'sibilant.'
⚠ vs. listeners — Both reads are honest about a genuinely variable top end: the XM5's hot presence peak is measurably reduced (so 'smoother'), but pro measurements disagree most in the treble and some units/seals still surface sibilance stock — a difference EQ largely closes.
Where it splits
Smoothed and refined — the XM5's harsh peaks are tamed, so it's easier and non-fatiguing.70%
“Sony fixed the harsh treble peaks of the XM5 and smoothed out the low-end for a warmer, more listenable experience.”
SoundGuys
Still sibilant / harsh out of the box — some reach for EQ or consider returning it.30%
“I noted some sibilance and harshness in the treble”
RecordingNow
Soundstage
Contested · 6 srcOne of the sharpest disagreements in the set. Several reviewers hear an expansive, atmospheric, 'open' presentation — wide and well-placed for a closed wireless headphone, and widened further by the spatial 'Cinema' mode. Others hear it as narrow, compressed and 'in-your-face,' short of true audiophile openness. The split tracks expectations and whether spatial processing is on.
Measured
Closed-back; TechGearLab scores soundstage 9.0 while conceding it 'lacks some width,' and the spatial 'Cinema'/360 Reality Audio upmix widens the stage further. RecordingNow treats the narrow stage as a core limitation against open audiophile headphones — the divide is largely about which yardstick a reviewer uses.
Where it splits
Expansive and atmospheric — open, precise placement, impressive for a closed wireless can.66%
“The Sony XM6 has one of the most wonderfully atmospheric soundstages.”
TechGearLab
Narrow and compressed — 'in your face,' not on an audiophile level.34%
“the separation, layering, and rather narrow compressed soundstage were not on that audiophile level”
RecordingNow
Lightly covered and generally positive: instrument placement and separation are called precise, with a 'centre-of-the-track' feel, and several note it's a step up from the XM4/XM5 in separation. Bounded, as always, by the closed soundstage.
“The Sonys sound much more precise in their placement of instruments.”
What Hi-Fi?
“the imaging placement makes it seem like you are in the center of your tracks”
Audio46
Leans positive on the strength of the pro editorial reviews, but it's the same fault line as soundstage. Mainstream and lab-based reviewers hear a genuinely detailed, resolving sound (What Hi-Fi calls it the most detailed Sony wireless flagship yet); audiophile-leaning and critical listeners find it short of true hi-fi and bettered by rivals like the Px7 S3.
“The WH-1000XM6 deliver the most detailed, dynamic, precise and open sound”
What Hi-Fi?
“There's more detail out of the Brits as well, and an all-around more complete audio experience.”
Tammy Rogers (Tom's Guide)
Measured
No single figure settles it — What Hi-Fi and Audio46 report a clear resolution gain wired and a step up over the XM5, while Tom's Guide and RecordingNow rate detail/separation below the best wireless rivals. It's fine-to-excellent for the class, short of open audiophile references.
Generally positive but lightly covered. Described as punchy and driving with a strong sense of attack and rhythm; the main caveat is that the warm, controlled tuning can sound a touch polite or 'clinical' on raw, aggressive tracks.
“the Sonys really hammer home the intensity and intent behind the track”
What Hi-Fi?
“They can be a little clinical in some tracks that require a more raw sound, such as Nirvana’s Smells Like Teen Spirit.”
Samuel Gibbs (The Guardian)
Isolation
Strong consensus · 11 srcThe headline strength and the clearest point of agreement: the active noise cancelling is class-leading — among the very best available — and especially strong on low-frequency rumble, helped by the new QN3 processor and a 12-mic array. Passive isolation and the transparency mode are improved too. Two honest caveats keep it from a clean sweep: the gain over the XM5 is widely called incremental, and a minority of real-world users (often with imperfect seals) come away underwhelmed, with the Bose QuietComfort Ultra considered comparable.
“Low-end and midrange noise are contained exceptionally well”
What Hi-Fi?
“With a good seal, the XM6 reduces ambient noise by up to 87%, compared to the XM5’s still-impressive 84%.”
SoundGuys
Measured
Independent labs converge on class-leading attenuation: SoundGuys' B&K 5128 measures up to ~87% ambient-noise reduction (vs the XM5's 84%), best in the sub-1 kHz range where it matters; TechGearLab's lab measures roughly 26.6 dB low / 26.6 dB mid / 46.7 dB high reduction and scores ANC 9.5/10. The improvement over the XM5 is real but modest, and a good seal is required — some owners with poor fits, or comparing on a plane, report the XM4/XM5 doing as well.
Comfort
Contested · 11 srcThe most consistent complaint, and genuinely contested. Sony increased the clamping force to improve the seal and ANC, and the earcups are shallow/narrow with a thin headband and a slightly protruding ANC mic — which a large group of reviewers and owners find causes crown pressure and cramped ears (a dealbreaker for some). A real opposing camp, including some pro reviewers, finds the fit well-judged, light and fine for long sessions; for several the clamp also eases with break-in. Head and ear shape decide a lot.
Measured
Light at ~254 g (What Hi-Fi/Guardian) / 255 g measured (TechGearLab), but the clamping force was deliberately raised over the XM5 to aid isolation, the earcups are shallow/narrower, and the ANC mic protrudes ~2 mm inside the cup (SoundGuys). TechGearLab scored comfort 6.8/10; crown pressure and cramped ears are the recurring complaints, while What Hi-Fi's testers — including glasses wearers — had no undue strain, so fit is strongly head-shape dependent.
Where it splits
Well-judged and comfortable — the firmer clamp is fine, light for long sessions, no overheating.42%
“We found the force to be nicely judged with a slightly firmer feeling from the bottom section of the earcups”
What Hi-Fi?
Shallow/narrow cups and a strong clamp — crown pressure and cramped ears for many.58%
“comfort still isn’t where it should be. The XM6’s ear pads feel deflated out of the box, and the earcup depth leaves larger ears cramped.”
SoundGuys
Divisive, with one big shared win: the fragile XM5 hinge is fixed — folding returns on a metal-reinforced (stainless-steel) hinge, in a book-style magnetic case. From there it splits. One camp finds it light, solid and travel-ready; the other finds it still mostly plastic and 'hollow,' feeling cheaper than a ~$449 flagship should, with a few owner reports of a mechanical resonance in the right earcup. No water/IP rating either way.
Measured
Mostly plastic with a new metal-reinforced folding hinge and a magnetic, book-style case that still stores flat; no IP/water rating; ~254 g. Reviewers agree the hinge fix addresses the XM5's biggest reliability complaint, but disagree on whether the materials feel premium for the price; a couple of owner threads report a resonance/rattle in the right earcup.
Where it splits
Solid and travel-ready — the fragile XM5 hinge is fixed with metal reinforcement, and it folds again.46%
“The WH-1000XM6 finally addresses the fragile hinge design that plagued the XM5, adding a visible metal reinforcement for durability.”
SoundGuys
Plasticky and 'hollow' — feels cheaper than its price, mostly plastic like the XM5.54%
“I particularly don't like how light and hollow the headphones feel — while the lightness makes them more comfortable, it also makes them feel much cheaper than their $449 price tag would suggest.”
Tammy Rogers (Tom's Guide)
Splits almost evenly, and it comes down to what you're buying it for and whether you already own a Sony. As a complete package — for class-leading ANC, best-in-class calls, the feature set and the best Sony sound yet — many call it worth the ~$449 (a $50 bump over the XM5) and a new benchmark. Judged on sound-per-dollar or as an upgrade, others call it overpriced and incremental, pointing to the now heavily-discounted XM5 as the better deal.
Measured
Launched at ~$449.99 (up from the XM5's $399.99); TechGearLab lists it at $460 and RecordingNow notes street prices near ~$398. With the XM5 frequently under $350 and multiple sources calling the upgrade 'not a must-update' for XM4/XM5 owners, the value verdict hinges on whether you're buying new for ANC/features or cross-shopping on sound.
Where it splits
Worth it as a complete package — a new benchmark for a flagship wireless ANC headphone.47%
“Has Sony just set a new benchmark at this price point? Quite possibly.”
What Hi-Fi?
Overpriced / incremental — the discounted XM5 is the better value, especially as an upgrade.53%
“the XM5 now frequently dips below $350 during sales, making it the better value option.”
SoundGuys
