EPZ P40 vs Letshuoer S12 Ultra: which should you buy?

On aggregated review scores the Letshuoer S12 Ultra comes out ahead with a HearWiki score of 83. The full breakdown - sub-scores, specs and what reviewers actually said - is below.

Our pick: Letshuoer S12 Ultra - Outstanding overall at around $169.

Wired IEMs

Score breakdown

Each axis is a 0–10 blend of what reviewers scored, not a lab measurement.

Letshuoer S12 Ultra leads on 3 of 4 measures.

EPZ P40
Letshuoer S12 Ultra

HearWiki score

Sound

7.2

8.6

Value

6.4

8.9

Price (USD)

$160

$170

Generation & platform

The scores rank quality. This is the other question: is the newer one actually newer technology, or the same platform in a new shell?

Same generation

EPZ P40 (2026) against Letshuoer S12 Ultra (2025). These are the same generation of hardware - nothing in the radio, the codecs or the noise cancelling separates them. Nothing separates them on convenience features either, so the choice comes down to tuning and price.

P4020261 yr newer
S12 Ultra2025

Specifications

P40S12 Ultra

Type: Wired IEMs; Wired IEMs
Price (USD): $160; $170
HearWiki score: 66; 83
Released: 2026; 2025
Availability: Sold new; Sold new
Driver: 2DD + 1PL + 1PZT tribrid; 1 planar magnetic
Driver type: tribrid; planar
Driver configuration: 2DD + 1PL + 1PZT; 1 planar magnetic
Driver size: -; 14.8 mm
Drivers per side: 4; 1
Impedance: 14 Ω; 16 Ω
Active noise cancelling: No; -
Connector: 2-pin 0.78 mm; -

Specification comparison of EPZ P40 vs Letshuoer S12 Ultra
Spec	EPZ P40	Letshuoer S12 Ultra
Type	Wired IEMs	Wired IEMs
Price (USD)	$160	$170
HearWiki score	66 / 100 Good	83 / 100 Outstanding
Released	2026	2025
Audio
Driver	2DD + 1PL + 1PZT tribrid	1 planar magnetic
Driver type	tribrid	planar
Driver configuration	2DD + 1PL + 1PZT	1 planar magnetic
Driver size	-	14.8 mm
Drivers per side	4	1
Impedance	14 Ω	16 Ω
Features
Active noise cancelling	No	-
Design
Connector	2-pin 0.78 mm	-

What reviewers said

EPZ P40

The EPZ P40 is a wired tribrid IEM that delivers a clean, precise sound with strong mids and solid technical performance, making it a standout in the sub-$200 range. Its crisp tuning and accurate imaging appeal to detail-focused listeners, though the treble may come across as sharp or cold to some. With a four-driver setup and 2-pin connector, it offers good value for audiophiles seeking clarity.

Pro:Strong midrange and clean bass
Pro:Good resolution and micro-detail
Pro:Precise imaging and transparency

Con:Treble can sound sharp or shouty
Con:Limited included eartips
Con:Needs quality source for best results

Letshuoer S12 Ultra

The Letshuoer S12 Ultra is a wired in-ear monitor that delivers Hi-Fi sound through a single 14.8mm planar magnetic driver housed in a lightweight aluminum-alloy shell. Aimed at music enthusiasts, it offers the signature planar-driver clarity and detail of the S12 series in a refreshed design, without any active noise cancellation or wireless features. Priced around $169, it's a straightforward, high-performance option for wired listening.

Pro:Detailed and fast planar magnetic sound
Pro:Lightweight and durable aluminum-alloy build
Pro:Accurate bass response with low distortion

Con:Requires a wired connection, no wireless freedom
Con:No active noise cancellation for noisy environments
Con:Open-back style may leak sound in quiet settings

Summaries are AI-condensed and paraphrased from published reviews and specs - not original hands-on testing. More on our method.

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