In-Ear MonitorOverreview

Linsoul Avant

Linsoul's first IEM under its own name: praised for its MEMS treble and natural midrange, argued over for its bass weight, a 4–6 kHz edge and its short nozzle.

28 sourcesUpdated
$369Typical US price

Score aggregates reviewer opinions across topics.

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Linsoul Avant

The short version

What to know.

The Linsoul Avant is a 2DD + 3BA + 1 MEMS IEM listed at $369. Eleven measurement rigs agree closely on its shape: a 6–8 dB sub-bass shelf, a flat lower midrange, a moderate ear-gain peak near 3 kHz (3–5 dB below the Harman target), a second rise around 4.5–5 kHz, extra air at 10–15 kHz, then a steep fall above 15 kHz. Reviewers broadly agree that it sounds neutral with a little warmth, that it is detailed and images well, and that the metal shell feels premium, though the modular cable's plug pulls loose too easily. Most hear the MEMS treble as smooth and refined, but a minority of owners find the 4–6 kHz region harsh, and one returned the set over it. The bass splits reviewers between clean and well judged and tight but short on physical impact. Fit also splits them: the shell is large and the nozzle short, so some can't get a seal at all.

About this product

Linsoul's own-name tribrid IEM: two 10 mm dynamic drivers, three balanced armatures (two custom, one Knowles) and a MEMS driver per side, in aluminium shells. Not the Soundz Avant custom IEM, and not Linsoul's Kiwi Ears Halcyon (1DD + 3BA + MEMS).

For a decade Linsoul has been the storefront behind much of the Chinese IEM scene, and the owner of house brands such as ThieAudio, Kiwi Ears and ZiiGaat. The Avant is the first in-ear monitor it sells under the Linsoul name alone: a $369 tribrid with two 10 mm dynamic drivers facing each other for the bass, three balanced armatures for the mids and treble, and a silicon MEMS driver up top, in a polished aluminium shell that it shares with ZiiGaat's Seraphim.

Linsoul calls the tuning warm-neutral, and the measurements agree with its own description. It arrived in the crowded $300–400 bracket in autumn 2026 alongside a run of other MEMS sets, so most reviews weigh it against the Binary EP321, Kiwi Ears Halcyon and Crinacle's Reference as much as on its own terms.

A good fit for

  • Listeners who want a natural, neutral-warm midrange with tasteful bass and treble lift
  • Listeners who want treble air and detail without glare — most reviewers call the top end smooth
  • Anyone who values detail and imaging over slam, including gamers

Think twice if

  • You want weighty, physical bass slam
  • You have small ears, or need long tips to seal shallow-nozzle IEMs
  • You are sensitive to 4–6 kHz energy or sibilance
  • You want something distinctly different from Linsoul's ZiiGaat and Kiwi Ears sets at lower prices

The reviewer consensus

Agreement &
disagreement.

3 / 12topics divide opinion
tonalitydetailimagingbuildmidssoundstagedynamicsvaluetreblebasscomfortisolation
4 Strong agreement4 Mostly agree3 Divided opinions1 Limited evidence

Common ground5

  • A neutral tuning with a little warmth, measured near Linsoul's own warm-neutral description
  • More detail than most sets at the price, without sounding analytical
  • Precise imaging that keeps busy passages separated, for music and games

Points of contention3

  • Treble: most hear smooth, refined MEMS air; some owners find 4–6 kHz harsh enough to turn it down
  • Bass: a clean, well-judged shelf for most, tight but short on physical impact for others
  • Fit: comfortable once sealed for many, but the large shell and short nozzle defeat some ears and tips

A closer listen.

12 topics · 3 divided
Left: criticalRight: positiveTighter lines: more agreementDashed: limited evidence

Treble

PositiveDivided opinions
Reviewer sentiment11 supporting sources
CriticalNeutralPositive

Band: opinion spread · Dot: weighted average

Sources split, unevenly. Most reviewers call the treble the Avant's best feature: airy, detailed and unusually smooth for a bright-leaning set, and among the better MEMS implementations they have heard. A minority, mostly owners, finds the 4–6 kHz region edgy enough to keep the volume down; one returned the set over it, and Precog hears the very top as too dark. ATech, who praises the treble, still names a 4.5 kHz bite and some sibilance that wide-bore tips tame, and the rigs show the 4–5 kHz rise that both camps describe.

Measured

All eleven rigs put the main ear-gain peak at 3.0–3.25 kHz and a second rise at 4.1–5.2 kHz, then hold 10–15 kHz 2–4 dB above the Harman IE 2019 target before falling steeply past 15 kHz. Deeper insertion lowers 6–9 kHz by about 2 dB (ATechReviews' and Jaytiss's deep-fit traces).

vs. listeners — The 'airy' and 'too dark at the top' verdicts describe different octaves: 10–15 kHz measures above target while everything past 15 kHz falls away. The harshness reports match the 4–5 kHz rise every rig shows, and that region moves with fit and tips, so how edgy it sounds varies from ear to ear.

Where it splits
smooth, airy, refined MEMS treble82%

“This is among the better MEMS implementations I’ve heard, demonstrating the technology’s resolving capabilities without the excessive sharpness that can undermine some competing designs.”

Aaron Sigal, eCoustics
a harsh 4–6 kHz edge (or too dark past 15 kHz)18%

“I find the 6 kHz area a little harsh, preventing me from turning the volume up too high.”

anibra2112, r/iems
Link to this topic

The hardware

Specifications.

Checked

Design

Type
In-ear monitor
Drivers
2 × 10 mm dynamic (PET diaphragm, dome-to-dome) + 3 × balanced armature (2× custom 653011, Knowles 33518) + 1 × MEMS (silicon-based solid-state)2DD + 3BA + 1MEMS
Housing
aluminumcommunity-sourced

Electrical

Impedance
12 Ω

Connection

Cable
Detachable
Connector
0.78 mm 2-pin
Plugs supplied
3.5 mm, 4.4 mm balancedcommunity-sourced

Manufacturer-published figures, not measurements · from linsoul.com. Plugs supplied, housing not published by the maker — community-sourced from hands-on reviews: ecoustics.com, youtube.com.

Follow the evidence

Sources 28

1–6 of 28 sources

Read with context

Limitations & method.

As of

What to keep in mind 5

  1. This is an early read, as of November 2026, about ten weeks after launch. Owner reviews are still few, and long-term durability isn't known yet.

  2. Several early impressions came from show demos, and one from a prototype before Linsoul's final retune. Retail-unit reviews and measurements outweigh them here.

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