Stored Category Comparison

Letshuoer S15 vs ThieAudio Origin

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 ThieAudio Origin

Sound Profile Radar

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

Letshuoer S15
ThieAudio Origin

Category Scores

Stored score comparison

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

AxisS15OriginDelta
Bass
8
9.2
+1.2
Mids
8.1
8.1
Even
Treble
7.2
7.9
+0.7
Technicalities
7.5
8.3
+0.8
Soundstage
7.5
8.8
+1.3
Value
7.2
8
+0.8

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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.

ThieAudio Origin

Approved sources position the Origin as a bass-lover’s flagship that still avoids collapsing into one-note excess. Headfonia describes a quadbrid design with a very large sub-bass lift balanced by ThieAudio’s broader control, while Bloom’s genre-focused coverage highlights warmth, immersion, and strong low-end authority. Reddit impressions reinforce the same pattern: lush bass, cosy mids, EST sparkle, and a fun rather than hyper-analytical tuning. The Origin is not trying to be a reference monitor first; it is trying to make music feel big, textured, and engaging, with enough technical competence to keep the excitement coherent.

Letshuoer • IEMs

Letshuoer S15

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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

ThieAudio • IEMs

ThieAudio Origin

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Approved sources position the Origin as a bass-lover’s flagship that still avoids collapsing into one-note excess. Headfonia describes a quadbrid design with a very large sub-bass lift balanced by ThieAudio’s broader control, while Bloom’s genre-focused coverage highlights warmth, immersion, and strong low-end authority. Reddit impressions reinforce the same pattern: lush bass, cosy mids, EST sparkle, and a fun rather than hyper-analytical tuning. The Origin is not trying to be a reference monitor first; it is trying to make music feel big, textured, and engaging, with enough technical competence to keep the excitement coherent.

Strengths

  • Big, visceral sub-bass with genuine flagship weight
  • Warm, immersive presentation that remains more controlled than a pure bass cannon
  • Engaging spatial presentation with strong depth and atmosphere

Weaknesses

  • Not tuned for strict neutrality or studio-like balance
  • Technical performance is good, but not the primary selling point versus more analytical rivals
  • Premium pricing still demands clear preference for its fun-first presentation