HeadphoneOverreview

HiFiMan Sundara

The planar everyone measures as neutral — and then argues over whether its treble bites and its bass is there.

42 sourcesUpdated
$179Typical US price

Score aggregates reviewer opinions across topics.

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HiFiMan Sundara

The short version

What to know.

A planar open-back whose midrange measures closer to the Harman target than almost anything near its price — within about ±2 dB from 100 Hz to 8 kHz on oratory1990's rig — and whose imaging, separation and detail are the most consistently praised things about it. It is light for a planar and comfortable for most, though the cups don't swivel and larger heads find the headband short and the clamp firm. Being open-back, it isolates nothing. Four fault lines run through the sources. Tonality: most hear neutral and balanced; a large minority — ASR, TechPowerUp and the loudest critics — hear it bright, lean or clinical. Treble: an almost even split between 'smooth and extended' and 'peaky, sharp, sibilant', which tracks the rig (711-class and 5128 rigs show a 7–10 kHz peak that GRAS rigs hide), the pad revision and the recording. Bass: it extends deeper than the HD 600 on every rig but sits 4–8 dB under the Harman shelf, so it reads as 'deep planar slam' against dynamic open-backs and 'lean' against a modern target; it takes EQ superbly. Build: a genuinely metal, well-finished headphone against an owner record of dead channels, imbalance and durability complaints. Value has only improved as the price fell, though the Edition XS and newer planars now crowd it.

About this product

Open-back planar-magnetic over-ear. Launched late 2017 at $499, it settled at $349 in 2019 and $299 in 2022, and in late 2026 sells for about $179 new from HiFiMan and Amazon. Early in 2020 HiFiMan quietly changed the earpads (thinner at the front, angled, marked L and R), which measurably smoothed the upper mids — reviews from 2018–19 describe the older pads. The Sundara Silver and the Sundara Closed-Back are different headphones and are not covered here.

HiFiMan's Sundara — Sanskrit for 'beautiful' — has spent most of a decade as the standard answer to 'what's my first serious open-back planar?' An all-metal, open-back planar-magnetic over-ear, it launched at $499, became the $300–350 benchmark reviewers measured everything else against, and now sells for under $200.

Ten measurement rigs agree on what it does: an unusually even midrange, bass that reaches deeper than dynamic open-backs but sits well under a modern bass target, and a narrow treble peak near 9 kHz that some rigs see and others don't. What reviewers and owners argue about is how that sounds, whether the build holds up, and how much amplifier it really needs. This rebuild reads it through 42 sources: the labs, the reviewers, every Head-Fi review, a five-year ASR thread, Reddit's critics and 1,500 Amazon owners.

A good fit for

  • Listeners who want a neutral, detailed, well-imaged open-back for acoustic, jazz, classical and rock
  • EQ users — its flat, low-distortion bass takes a sub-bass shelf better than most headphones at the price
  • First 'serious' open-back buyers who already own, or will buy, a desktop amp
  • Gamers and mixers who value precise positioning over a huge stage
  • Budget planar buyers at today's sub-$200 price

Think twice if

  • You want weighty, Harman-level bass out of the box and won't use EQ
  • You're treble-sensitive — many hear a sharp 9 kHz region, especially on bright recordings
  • You need isolation or will listen around other people
  • You have a large head or need cup swivel for a good fit
  • You can't easily return a faulty unit — dead channels and imbalance are reported often enough to matter
  • You'll only drive it from a phone and like it loud

The reviewer consensus

Agreement &
disagreement.

4 / 12topics divide opinion
imagingisolationmidssoundstagedetaildynamicscomfortvaluetonalitytreblebassbuild
2 Strong agreement6 Mostly agree4 Divided opinions

Common ground7

  • One of the most neutral midranges near its price — within about ±2 dB of the Harman target from 100 Hz to 8 kHz on oratory1990's rig.
  • Precise imaging and excellent instrument separation, with class-leading detail for the money.
  • Fast, tightly controlled transients — the 'planar speed' reviewers expect.

Points of contention5

  • Tonality: neutral and balanced to most, bright, lean or clinical to a large minority — the treble peak and the lean bass shelf drive the split.
  • Treble: an almost even split between smooth and extended versus sharp, sibilant or 'crunchy' — it tracks the measurement rig, the 2020 pad revision, the unit and the recording.
  • Bass: 'deep planar slam' against dynamic open-backs, 'lean, not for bassheads' against a Harman-style target or a closed-back.

A closer listen.

12 topics · 4 divided
Left: criticalRight: positiveTighter lines: more agreement

Tonality

Leans positiveDivided opinions
Reviewer sentiment26 supporting sources
CriticalNeutralPositive

Band: opinion spread · Dot: weighted average

Sources split. A majority — RTINGS, SoundGuys, PCMag, Resolve, Crinacle, DMS and most Head-Fi reviewers — hears a neutral, balanced, reference-grade tuning, some with a touch of warmth from the lean bass shelf. A large minority hears the same graph as bright, lean or clinical: ASR before EQ, unheardlab (“more on the ‘clinical’ side of neutrality”), TechPowerUp, Fc-Construct's 'neutral-bright', and the critics who call it thin. The split follows the treble peak and the bass level more than the midrange, which nearly everyone hears as even.

Measured

On oratory1990's GRAS 43AG the post-2020 Sundara stays within about ±2 dB of the Harman over-ear 2018 target from 100 Hz to 8 kHz, with a shallow 1.5–2 kHz dip; RTINGS' 5128 calls the signature 'Flat' with bass −3 dB and treble −2 dB. Against an HD 600 on the same rig, the midrange (500 Hz–6 kHz) sits within about ±2–3 dB on most of eight rigs.

vs. listeners — The midrange is not what divides the camps: the 'bright/clinical' reading comes from the combination of a bass shelf 4–8 dB under the Harman target and a 7–10 kHz peak that most non-GRAS rigs show. Pre-2020 pads added a further ~2.5 dB at 3–5 kHz (oratory1990, pre vs post files), which is why 2018–19 reviews lean brighter.

Where it splits
Neutral and balanced — reference-grade, even a touch warm58%

“Their flat sound signature supplies a bit of de-emphasis in the bass and treble for a slightly warm tonality with clear instrumentation in the mix and not too many peaks and dips.”

RTINGS
Bright, lean or clinical — neutral on paper, analytical in the ear42%

“And sound signature was a bit bright and over exaggerated at the top.”

Amir Majidimehr, Audio Science Review
Link to this topic

The hardware

Specifications.

Checked

Design

Type
Open-back over-ear
Drivers
1 × planar magnetic

Electrical

Impedance
32 Ω
Frequency response
6 Hz – 75 kHz

Connection

Cable
Detachable, 1.5 m
Connector
3.5 mm

Physical

Weight
342 g

HiFiMan's own page lists 32 Ω and 342 g; retailers such as Apos list 37 Ω and 372 g. Manufacturer-published figures, not measurements · from hifiman.com (archived), apos.audio.

Follow the evidence

Sources 42

1–6 of 42 sources

Read with context

Limitations & method.

As of

What to keep in mind 7

  1. A read of where the reviews land as of October 2026. The Sundara has been around since 2017, and its price has nearly halved while newer planars have arrived around it.

  2. HiFiMan changed the earpads in early 2020, which smoothed the upper mids and treble, so reviews from 2018–19 describe a slightly brighter headphone than the one sold today.

Where to buy Product & retailer links

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