In-Ear MonitorOverreview

Truthear Pure

The Hexa tilted warm: 37 rigs agree on exactly what changed, and the people wearing it split on whether that is the HD 650 of IEMs or a blanket over the music — and on whether the shell fits at all.

45 sourcesUpdated
$90Typical US price

Score aggregates reviewer opinions across topics.

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Truthear Pure

The short version

What to know.

A $90 1DD + 3BA hybrid tuned warm of neutral: 37 measurement rigs agree within a decibel that it is the Hexa with about 1.5 dB more lower-mid weight, the same sub-bass, and a 2–7 kHz band 4.5–7 dB under the Harman target. Sources agree on a smooth, sibilance-free top end, a much better cable than the Hexa's, good-not-class-leading detail, and that it is easy to EQ. They split on nearly everything else. About three-quarters of the weight calls the tonality the HD 650 of IEMs; a quarter hears it as too warm, dark or muddy. Bass reads as punchy and controlled to a small majority and as bloomy or slow to the rest; the mids split almost evenly between rich and natural and vocals that sit buried or hazy; the treble between 'some of the best at the price' and rolled-off and airless, with a length-mode peak around 6–9 kHz that moves with insertion depth. The shell — thicker than the Hexa's, angular, with a long nozzle — is all-day comfortable for half the sources and a fit problem for the other half. Reviewer scores run from 10 to 2 out of 10; Amazon owners average 4.3 of 5 but the listing is flagged as frequently returned.

About this product

The 2025 Truthear Pure — an $89.99 1DD + 3BA hybrid in a smoky resin shell with a ridged metal faceplate and a recessed 0.78 mm 2-pin socket, launched in June 2025 as the Hexa's successor with tuning guidance from Griffin Silver ('listener' of Headphones.com). Not the 2022 Hexa, which stays on sale beside it and measures 1–2 dB brighter from 1 to 5 kHz and 3–5 dB brighter at 8–12 kHz with the same sub-bass; not the Truthear x Crinacle ZERO / ZERO:RED / ZERO:BLUE2, Gate, Hola or Nova.

The Truthear Pure arrived in June 2025 as the $90 successor to the Hexa — the same one-dynamic, three-armature recipe in a near-identical smoky resin shell, retuned with guidance from Griffin Silver of Headphones.com, who says his main inspiration was the Sennheiser HD 650. It launched to five-star reviews from Super* Review and Pragmatic Audio, a 'new sub-$100 default IEM?' video from Crinacle's Hangout.Audio, and Resolve preferring it to the Hexa he had championed.

A year on, the record is more divided than the launch coverage. Nobody disputes what the tuning is — every measurement rig shows it as the Hexa with more lower-midrange weight and 1–5 dB less upper midrange and treble — but reviewer scores now run from ten out of ten to two, owners argue in thread after thread about whether it is 'natural' or 'underwater', and the chunkier shell has become as much of the story as the sound.

A good fit for

  • Listeners who like the HD 650 or a warm, speaker-like balance and want it in an IEM for $90
  • Treble-sensitive listeners and long sessions — its smooth top end is the most agreed-on praise
  • Anyone who found the Hexa glary, thin or bass-light, and male-vocal-heavy libraries
  • EQ users who want a smooth, peak-free starting point
  • People with average-to-large ears, or who already know the Hexa fits them

Think twice if

  • You want air, sparkle and upper-midrange bite — the Hexa, or a brighter set, is the better fit
  • You found warm sets muddy or 'veiled' before; a real minority hears this one as underwater
  • Your ears are small or sensitive to shell edges — try it before you buy, or buy where returns are easy
  • You need maximum separation for busy mixes or competitive FPS
  • You play through a high-output-impedance source and already find it dark

The reviewer consensus

Agreement &
disagreement.

10 / 12topics divide opinion
2 Mostly agree10 Divided opinions

Common ground6

  • The tuning is settled: 37 rigs agree within a decibel that it is the Hexa with about 1.5 dB more lower-mid weight, the same sub-bass, and a presence region 4.5–7 dB under the Harman target
  • The top end is smooth and free of sibilance for nearly everyone; the arguments are about air and a 6–9 kHz peak that moves with insertion depth
  • The silver cable is a clear upgrade over the Hexa's — soft, low-memory, tangle-resistant — though one owner's yellowed and SoundGuys found its ear hooks tug

Points of contention9

  • Tonality: the HD 650 of IEMs (three-quarters of the weight) vs too warm, dark or muddy (a quarter) — the same measured tilt
  • Bass: controlled and punchier than the Hexa vs bloomy, slow upper bass that smears into the mids
  • Mids: rich, natural, great for male vocals vs vocals that sit back or blur under the warmth — split almost evenly

A closer listen.

12 topics · 10 divided
Left: criticalRight: positiveTighter lines: more agreement

Tonality

Leans positiveDivided opinions
Reviewer sentiment39 supporting sources
CriticalNeutralPositive

Band: opinion spread · Dot: weighted average

Sources split three to one. The larger camp — Super* Review, Resolve, Hangout.Audio, Prime Audio, McCullough, SBAF's shotgunshane and most owners — hears a warm, dense, 'new neutral' that is the Hexa done more maturely, and reaches for the HD 650 comparison again and again. The smaller camp hears the same tilt as too much: 'too warm' (Gizaudio, 3/5), 'very boring and dark albeit safe' (Precogvision), 'dark and muddy' (an ASR owner who resold it), a regret-thread 'too warm' and Reddit's 'underwater'. Even its tuner calls it 'a little bit too warm for me in the mids'.

Measured

Thirty-seven IEC-711 rigs (500 Hz-normalised) agree within a decibel below 5 kHz: 2–3 dB under Harman IE 2019 in the sub-bass, 1.3 dB over it at 200 Hz, an ear-gain peak at 3 kHz that is 4.3 dB under target, and the whole 2–7 kHz band 4.5–7 dB under. Against the Hexa on 28 shared rigs: the same sub-bass, +1.6 dB at 200 Hz and −0.6 to −1.0 dB at 2–3 kHz relative to 1 kHz, and 3–5 dB less at 8–12 kHz. Three B&K 5128 rigs show the same shape.

vs. listeners — Both camps are describing the same curve — a Hexa tilted about 1.5 dB toward the low mids with the presence region well under the Harman target. It reads as 'natural, speaker-like' to listeners calibrated on headphones and as 'veiled' to anyone used to Harman-style ear gain. The one outlier reading is Prime Audio's 'light V-shaped' with '3-4dB from the sub-bass', which the shared-rig difference does not show.

Where it splits
Warm neutral done right — the HD 650 of IEMs77%

“this is definitely a warmer, denser version of a neutral sound signature, but still very much squarely in the realm of neutral.”

Super* Review, via YouTube transcript
Too warm, dark or muddy23%

“That sound signature is just way too warm for me in the mid-range.”

Gizaudio, via YouTube transcript (3/5)
Link to this topic

The hardware

Specifications.

Checked

Design

Type
In-ear monitor
Drivers
1 × 10 mm dynamic (silicone suspension + LCP dome composite diaphragm, copper voice coil) + 3 × balanced armature (composite full-frequency BA (mids) + customized BA similar to the WBFK series (highs))1DD + 3BA
Housing
DLP 3D-printed cavity, medical-grade high-transparency resin (HeyGears)

Electrical

Impedance
13.8 Ω
Sensitivity
124 dB/V≈ 105.4 dB/mW
Frequency response
7 Hz – 40 kHz

Connection

Cable
Detachable
Connector
0.78 mm 2-pin (recessed)
Plugs supplied
3.5 mmcommunity-sourced

Manufacturer-published figures, not measurements · from truthear.com, shenzhenaudio.com. Plugs supplied not published by the maker — community-sourced from hands-on reviews: headfonics.com, soundguys.com.

Follow the evidence

Sources 45

1–6 of 45 sources

Read with context

Limitations & method.

As of

What to keep in mind 7

  1. A read of where the reviews stand in late September 2026, about fifteen months after launch. The launch-week reviews were almost all from loan units sent by the same retailer and are noticeably warmer than the owner threads and re-reviews that followed.

  2. This is one of the most fit-dependent earphones we've covered. The shell is thicker and more angular than the Hexa's and the nozzle is long; people with small ears or sensitive conchas report real discomfort, while others find it the most comfortable set they own. Buy where returns are easy.

Where to buy Product & retailer links