By aspect — in detail
Tonality
Contested · 9 srcThe headphone's whole reputation. It measures close to target with a mild mid-bass bump, so most hear it as balanced or near-neutral and say the old 'bass-cannon V-shape' rap overstates it. A second camp hears a warm, fun, mildly V-shaped tuning — engaging rather than reference — and a critical camp hears a poorly-tuned, muddy V. Much of the split tracks the source, the ears, and the specific unit.
Measured
On the bench the X2HR hugs the target from roughly 40 Hz to 4 kHz (ASR) and 'follows the harman curve pretty well' (Pragmatic Audio), with a mild mid-bass bump, a ~5 kHz lift, a dip higher up and an open-back sub-bass roll-off — near-neutral overall rather than a strong V.
⚠ vs. listeners — Because the response is close to neutral, 'neutral,' 'warm fun V' and 'muddy V' are largely the same near-target tuning (a small mid-bass bump plus open-back sub-bass roll-off) heard through different ears and sources — and, crucially, different units: multiple sources document audible left/right channel imbalance from unit to unit, so some of this disagreement is physical, not just preference.
Where it splits
Balanced / near-neutral — measures close to target; the bass-heavy V-shape reputation overstates it.48%
“The Philips Fidelio X2HR is an excellent, realistic and neutral sounding headphone.”
DIY-Audio-Heaven (solderdude)
Warm and fun, mildly V-shaped — engaging and easy rather than a flat reference.30%
“quite a well balanced and slightly warm sounding headphone, with a well-performed soundstage and imaging capability”
Earmass
A poorly-tuned, muddy V-shape — coloured and not resolving.22%
“Muddy bloated bass and a poorly tuned V-shape, not as resolving as competitors.”
r/headphones (TRX808)
The biggest fault line, and an unusual one: the top end is described three contradictory ways. One camp hears it as bright and peaky (even sibilant or fatiguing), one hears it as smooth and non-fatiguing with no real sharpness, and a third hears it as recessed, veiled or grainy. The contradiction tracks a presence-region peak sitting over an upper-treble dip — and documented unit variation.
Measured
Measurements locate a lower-treble/presence lift around 5 kHz (ASR's worst peak is 5.3 kHz) sitting above an upper-treble dip near 9–11 kHz (fdossena), with the response flat to ~13 kHz and −3 dB by ~14 kHz before rolling off (DIY-Audio-Heaven). So one headphone can genuinely read sharp (the peak), veiled (the dip) or fine depending on the track.
⚠ vs. listeners — The three-way split is real, not sloppy listening: the peak explains 'bright/sibilant,' the dip explains 'recessed/muffled,' and DIY-Audio-Heaven's documented left/right channel imbalance across units means some listeners are, in effect, hearing a different treble than others. A few dB of EQ tames the peak, but several owners report the underlying grain doesn't fully EQ out.
Where it splits
Bright / peaky — a presence lift that turns sharp or sibilant on some tracks and ears.40%
“Female vocals were annoying to listen as the sharpness would pierce your ear and then go away.”
Audio Science Review (amirm)
Smooth and non-fatiguing — clean, no real sharpness or sibilance.34%
“Treble too is excellent, no sharpness, no sibilance, no coarse treble, not splashy, not ethereal.”
DIY-Audio-Heaven (solderdude)
Recessed / veiled / grainy — dull up top rather than bright.26%
“there's also a noticeable dip in the 9-11kHz range that is much more pronounced compared to other headphones, and this makes the high-mid-low-treble area sound a bit muffled.”
Federico Dossena
Everyone agrees on the shape — a mild mid-bass emphasis over an early sub-bass roll-off (it's open-back) — but not on how it lands. Most hear punchy, tight, well-articulated bass that doesn't bleed into the mids and reject the old 'basshead' label; a vocal minority hears boomy, honky mid-bass with weak low extension, and the bench flags low-frequency distortion that clips when pushed or EQ'd.
Measured
The response 'more or less hugs our target preference curve from 40 Hz to 4 kHz' with bass that 'extends lower than it typically does' (ASR), over a mild mid-bass bump and the usual open-back sub-bass roll-off. The recurring objective knock is low-frequency distortion — ASR found it clips on bass EQ and 'the low frequency distortion can be annoying,' while DIY-Audio-Heaven and Pragmatic Audio call distortion otherwise decent/well-controlled for a dynamic driver.
Where it splits
Punchy, tight and well-articulated — not the bloated bass-monster its reputation suggests.66%
“The Philips Fidelio X2HR shines in its bass performance, which is punchy and robust without overwhelming the music’s other elements.”
Pragmatic Audio
Boomy / honky mid-bass with weak sub-bass extension.34%
“higher bass region being boosted in this strange and honky way.”
r/headphones (Ow_The_Edgehog)
Soundstage
Strong consensus · 9 srcThe one thing nearly everyone agrees on, critics included: a big, open, speaker-like left-right stage that's among the widest at any price, routinely put ahead of the Sennheiser HD 600/650. The honest caveat is that it's wide more than deep — front-to-back it's narrower — and a dissenter or two find it merely okay next to cheap Koss/Philips rivals.
“The soundstage is exceptional: it's wide, nothing sounds like it's in your face or in your head, and you can tell where every sound comes from”
Federico Dossena
“Soundstage of them is very nice, completely blows the HD600 out of the water in that aspect.”
r/headphones (IMKGI)
Measured
Angled 50 mm drivers and open cups give an unusually wide L/R image (many call it the widest they've heard), with a narrower front-to-back depth — wide and spacious rather than holographically precise.
The flip side of that big stage. Reviewers rate instrument placement and separation as solid for the price, but the community consensus — even among fans — is that positional imaging is only okay, and the wide-but-front-narrow presentation makes it a weak pick for competitive gaming.
“Imaging is another strength of the X2HR, with the headphones providing a solid ability to place and separate instruments across the stereo field.”
Pragmatic Audio
“Soundstage is excellent but imaging is just OK.”
r/headphones (TRX808)
Measured
The stage is wide L/R but narrow front-to-back (owners note it's 'fairly narrow to the front/back'), which helps musical width but hurts pinpoint positional cues for competitive FPS.
Musical rather than analytical. Some call it clean, open and high-resolution for the money; others say it's not the last word in resolution — a laid-back, slightly grainy set that reveals its limits next to reference or pricier headphones. Fine for enjoyment, not a critical-listening tool.
“when it comes to sound quality this headphone definitely sounds high-resolution.”
DIY-Audio-Heaven (solderdude)
“They aren't the last word in any one area, and aren't conspicuously detailed performers”
Positive Feedback (Ed Kobesky)
Measured
Distortion is otherwise low above the bass, but resolution is class-typical rather than exceptional; Earmass explicitly calls it 'not a transparent headphone' with 'some roughness and grain,' and several owners find it 'a bit too unresolving' next to pricier sets.
Lively and engaging — reviewers call the sound punchy and dynamic, and it's easy to drive from almost anything (30 Ω, efficient). The caveat is that, unlike an HD 600/650, it doesn't scale dramatically when you feed it a better amp, so there's a ceiling to how much it improves.
“The sound is punchy, taut, dynamic, clear, and tidy.”
Positive Feedback (Ed Kobesky)
“it doesn’t scale that nicely such as the Sennheiser HD600/650.”
Earmass
Measured
Efficient and low-impedance (30 Ω; ASR measured ~40 Ω and calls it 'rather efficient'), so it plays loud off a phone — but reviewers agree it gains little from a bigger amp beyond adequate volume.
Mostly a strength: large velour memory-foam pads and a self-adjusting suspension headband make it comfy for long sessions, and comfort is one of the most consistently praised things about it. The real caveats are weight (~380–400 g, heavy) and clamp, which reads high on some units/heads — a few report headband soreness or a mild headache after a couple of hours, while others feel little clamp at all.
“These headphones are very comfortable and I can wear them for hours without problems.”
Federico Dossena
“The clamping force is higher than average. After a few hours taking the headphone of is a relief and I developed some headache due to the clamping force.”
DIY-Audio-Heaven (solderdude)
Measured
~380 g without the cable (about 440 g with it) with a self-adjusting elastic headband and thick velour pads; measured clamp runs from 'higher than average' (DIY-Audio-Heaven) to light (fdossena), and it eases with break-in — the spread itself hints at unit/head variation.
Feels far more expensive than it is: a metal-and-plastic frame with a metal grille that doesn't creak, widely called premium for the price. Two asterisks pull the score down — the long detachable cable is stiff, microphonic and short on strain relief, and, more seriously, multiple sources document unit-to-unit channel imbalance and lax QC, so build consistency is a genuine lottery.
“the outer structure and the mesh on the sides are made of metal and feel very solid”
Federico Dossena
“It looks like Philips has quality control issues.”
DIY-Audio-Heaven (solderdude)
Measured
Machined-metal yokes and grilles over plastic cups, a self-adjusting headband, and a long (3 m) detachable single-sided cable on a 3.5 mm TRS jack (so no balanced use without a mod), widely panned as stiff/microphonic. DIY-Audio-Heaven measured audible L/R channel imbalance on two of three units ('a lottery ticket'), and owners report the same — the QC risk is real.
Isolation
Strong consensus · 4 srcOpen-back by design: essentially no passive isolation, and it leaks freely both ways. Expected for the type, not a flaw — but it rules out commutes, offices and shared rooms, and pins it to home/desk use.
“being open-back, these headphones have almost zero isolation: you can hear everything that's going on outside”
Federico Dossena
“They leak sound out, and do little to stop loud sounds, like bus engines and police sirens, from gushing in.”
Positive Feedback (Ed Kobesky)
Measured
Open-back — no meaningful isolation and free leakage both ways, by design (fdossena, Positive Feedback, DIY-Audio-Heaven).
Value
Strong consensus · 8 srcFor years the near-unanimous verdict was 'a steal' — an open-back that punches well above its falling street price on build, comfort and soundstage, ranked with the HE400se and HD 6XX as a budget staple. The modern caveat is competition: a wave of newer budget open-backs now crowds it, and critics reframe it as a fun, slightly-overhyped niche pick rather than an all-round giant-killer.
“Sounds better than its price point suggests”
DIY-Audio-Heaven (solderdude)
“one of the best deals in all headphone audio, up their with the Hifiman HE400se and the HD6XX.”
Pragmatic Audio
“It's not the best at any particular trait, but I can't think of any better all-rounder at its price bracket.”
r/headphones (plmon24)
Measured
Launched near $300 / €350 in 2016, now typically ~$120–150 street (seen as low as €80 on sale). Long a default budget-open-back recommendation, though newer rivals (HD 560S, HE400se and others) have narrowed the gap.
