Stored Category Comparison

Letshuoer S15 vs Moondrop Dusk

This page compares two published iems profiles using stored summaries, source-attributed scoring, and a single lines-only radar for fast visual difference checks.

Back to Letshuoer S15Open Moondrop Dusk

Sound Profile Radar

Hover any axis point to see both stored scores for that exact category edge.

Letshuoer S15
Moondrop Dusk

Category Scores

Stored score comparison

Every score is pulled from the stored product intelligence snapshot for this category pair.

AxisS15DuskDelta
Bass
8
8.2
+0.2
Mids
8.1
7.4
-0.7
Treble
7.2
6.3
-0.9
Technicalities
7.5
7
-0.5
Soundstage
7.5
6.6
-0.9
Value
7.2
6.2
-1

Compare To

Compare this iems against another stored profile.

Letshuoer S15 can only be compared against published iems profiles.

Quick Read

Letshuoer S15

The S15 is Letshuoer's 3rd-generation 14.8mm planar with a passive 6mm R-Sonic filter, and approved coverage agrees it deliberately walks away from the bright, energetic S12 formula. The consensus is a rich, smooth, warm-leaning planar that prioritizes body and listenability over raw detail: bass has real weight for a planar, mids are full and relaxed, and treble stays polite. Reviewers praise it as a fatigue-free long-session set, while the recurring criticism is that resolution and clarity are only moderate for $329 and listeners expecting an S12 successor's energy find it subdued.

Moondrop Dusk

The Moondrop x Crinacle Dusk is a tribrid in-ear monitor carrying two dynamic drivers, two balanced armatures and two planar magnetic tweeters per side, rated at 14.5 ohms and 119dB/Vrms, and shipped with both a 3.5mm cable and a USB-C FreeDSP cable that arrives with a Crinacle preset already loaded. Reviewers agree on the low end: the bass shelf sits near 100 Hz, reaches deep with genuine tactility, and does not smear the lower mids. Almost everything above 500 Hz is contested. A measurement-led review reports 12 to 14 dB of excess energy around 14 kHz in analog mode, and several owner reviews list sibilance as the headline con. Staging splits the same way: wide and deep in one account, close to mono in analog mode in another. The DSP cable is the pivot point. Its default preset corrects a forward 1400 Hz region and repairs the staging, but the cable also carries a signal-dependent digital noise artifact and an Android-only app that frequently fails to connect.

Letshuoer • IEMs

Letshuoer S15

Open page

The S15 is Letshuoer's 3rd-generation 14.8mm planar with a passive 6mm R-Sonic filter, and approved coverage agrees it deliberately walks away from the bright, energetic S12 formula. The consensus is a rich, smooth, warm-leaning planar that prioritizes body and listenability over raw detail: bass has real weight for a planar, mids are full and relaxed, and treble stays polite. Reviewers praise it as a fatigue-free long-session set, while the recurring criticism is that resolution and clarity are only moderate for $329 and listeners expecting an S12 successor's energy find it subdued.

Strengths

  • Rich, smooth, non-fatiguing tuning that is rare among planar IEMs
  • Bass carries genuine weight and warmth without losing planar control
  • Comfortable long-session listen with a full-bodied midrange

Weaknesses

  • Detail and clarity are moderate for the $329 asking price
  • Polite treble and relaxed presentation can read as dull after the S12
  • Not the pick for listeners chasing maximum technical performance

Moondrop • IEMs

Moondrop Dusk

Open page

The Moondrop x Crinacle Dusk is a tribrid in-ear monitor carrying two dynamic drivers, two balanced armatures and two planar magnetic tweeters per side, rated at 14.5 ohms and 119dB/Vrms, and shipped with both a 3.5mm cable and a USB-C FreeDSP cable that arrives with a Crinacle preset already loaded. Reviewers agree on the low end: the bass shelf sits near 100 Hz, reaches deep with genuine tactility, and does not smear the lower mids. Almost everything above 500 Hz is contested. A measurement-led review reports 12 to 14 dB of excess energy around 14 kHz in analog mode, and several owner reviews list sibilance as the headline con. Staging splits the same way: wide and deep in one account, close to mono in analog mode in another. The DSP cable is the pivot point. Its default preset corrects a forward 1400 Hz region and repairs the staging, but the cable also carries a signal-dependent digital noise artifact and an Android-only app that frequently fails to connect.

Strengths

  • Sub-bass reaches deep with real tactility and weight, and the bass shelf cascades into the lower mids without stuffiness or bloat
  • The DSP default preset corrects a forward 1400 Hz region and is called one of the best out-of-the-box tunings on the market
  • Effectively two IEMs in one box, since analog and DSP presentations differ enough that listeners can pick the character they want
  • Forged carbon fiber faceplates on a 3D printed resin shell, large but comfortable for most reviewers, with deep insertion and good passive isolation
  • Crinacle published the filter values for the DSP presets, so the tuning can be rebuilt in any parametric EQ without the cable

Weaknesses

  • Upper treble is the recurring complaint: excess air near 14 kHz in analog mode, and sibilance named as a con by multiple owners
  • The bundled FreeDSP cable injects an audible, signal-dependent digital noise artifact and its app is Android-only and unreliable
  • The stock 3.5mm cable is widely called cheap, and the lipless nozzle lets tips slip off or stay behind in the ear
  • Technical performance is repeatedly rated only average for the asking price, with strong competition at and below it