Tanchjim Origin VS Letshuoer S15

IEM Comparison: Expert & Community Scores Side-by-Side

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Tanchjim Origin and Letshuoer S15 are in-ear monitors. Tanchjim Origin costs $280 while Letshuoer S15 costs $329. Letshuoer S15 is $49 more expensive. Letshuoer S15 holds a slight 0.2-point edge in reviewer scores (7.2 vs 7.4). Tanchjim Origin carries a user score of 7.6. Tanchjim Origin has better bass with a 0.5-point edge, Letshuoer S15 has slightly better mids with a 0.4-point edge, Tanchjim Origin has better treble with a 0.9-point edge, Tanchjim Origin has better soundstage with a 0.5-point edge, Tanchjim Origin has slightly better details with a 0.3-point edge and Letshuoer S15 has slightly better imaging with a 0.3-point edge.

Insights

Metric Tanchjim Origin Letshuoer S15
Bass 7 6.5
Mids 7.1 7.5
Treble 7.4 6.5
Details 6.8 6.5
Soundstage 7.3 6.8
Imaging 6.8 7
Dynamics 6 6
Tonality 7.3 7
Technicalities 7.2 7.1
Take these comparisons with a grain of salt—we don't have enough Letshuoer S15 reviews saved yet to provide an unbiased result.

Tanchjim Origin Aggregated Review Score

Average Reviewer Scores

Shuwa-T Jays Audio Precogvision
Jaytiss Kois Archive Tim Tuned Z-Reviews Audionotions Gizaudio Axel Head-Fi.org

Average Reviewer Score:

7.2

Generally Favorable

Letshuoer S15 Aggregated Review Score

Average Reviewer Scores

Shuwa-T Jays Audio
Jaytiss Head-Fi.org

Average Reviewer Score:

7.4

Generally Favorable

Reviews Comparison

Tanchjim Origin reviewed by Jaytiss

Jaytiss 7.8 Reviewer Score
B+ Tuning
A- Tech
Great Clarity, exceedingly tip sensitive.

Jaytiss original ranking

Jaytiss Youtube Channel
Mids: A- Treble: A- Dynamics: C+ Soundstage: A+
YouTube video thumbnail

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Price: $259.99

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Letshuoer S15 reviewed by Jaytiss

2025-07-16
Jaytiss 8 Reviewer Score
A- Tuning
A- Tech
Nice Clarity, good detail. I feel it should have got more love.

Jaytiss original ranking

Jaytiss Youtube Channel
Mids: A+ Treble: A- Dynamics: B Soundstage: A-

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Price: $329

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Tanchjim Origin reviewed by Shuwa-T

Shuwa-T 6.7 Reviewer Score
B+ Tuning
B+ Tech
One of the more balanced sounding Tanchjim iems, vocal centric Quantity in the bass region, more noticeably the subbass

Shuwa-T original ranking

Shuwa-T Website

Bass: A- Mids: B+ Treble: B+ Soundstage: B+ Details: A- Imaging: B+

Letshuoer S15 reviewed by Shuwa-T

Shuwa-T 6.6 Reviewer Score
B+ Tuning
B+ Tech
Warmer tuned planar with less emphasis on the lower treble; easier to listen to for longer periods Still plagued by planar timbre, overall clarity takes a hit from warmer signature, slight subbass rolloff to my ears

Shuwa-T original ranking

Shuwa-T Website

Bass: B+ Mids: A- Treble: B Soundstage: B+ Details: B+ Imaging: A-

Tanchjim Origin reviewed by Jays Audio

Jays Audio 6.5 Reviewer Score
A Tuning
A- Tech
Just buy Fission. A cleaner/less warm LM, smoother EA1000 (fermats a little more resolving), very balanced, clean, and neutral sound. Very tough competition.

Jays Audio original ranking

Jays Audio Youtube Channel
YouTube video thumbnail

Letshuoer S15 reviewed by Jays Audio

Jays Audio 6.5 Reviewer Score
A Tuning
A Tech
YouTube video thumbnail
Neutral and laid back tuning. Great layering and separation and resolution. Great treble extension and air without being too sharp and light like other planar iems. Bass is also not light and floaty, and doesn't feel like planar bass - not slamming, but tight and well-textured. Vocals are laid back, but not too pushed back although it's not the most extended and powerful, but works very-well as a neutral set. Nice and open staging, and is the direct upgrade to the Hexa and Sonus. Very good safe all-rounder.
Youtube Video Summary

Letshuoer S15 takes the planar recipe in a more natural, neutral direction, dialing back the upper-mids/treble glare that made earlier S12 variants feel “planar.” The result is a heavier note weight, smoother edges, and a timbre closer to a good dynamic driver—without the etched, floaty thinness common to many planars. Vocals sit forward with less Harman-style shout, bass carries satisfying sub-bass rumble with tight mid-bass separation thanks to planar speed, and overall fatigue is low. The trade-off is a presentation that’s more relaxed than hyped: treble sparkle and micro-detail aren’t spotlighted, and those craving sizzle may find it a touch polite.

Against its siblings, S15 is the cleanest, most neutral option—more open and balanced than the darker, ultra-chill S08, and more refined/grounded than older S12 iterations that pushed treble energy. The newer S12 2024 brings back liveliness and air while staying smoother than previous S12s, but S15 remains the pick for a reference-leaning planar with convincing timbre. It costs a bit more than S12 2024, yet what you’re paying for is timbre quality, note density, and a fatigue-free listen that still carries enough low-end punch. For listeners prioritizing naturalness over fireworks, S15 feels like the most mature expression of Letshuoer’s planar line.

Jays Audio original ranking

Jays Audio Youtube Channel

Tanchjim Origin reviewed by Head-Fi.org

Head-Fi.org 7.9 * score rescaled + normalized
18 community members have rated the Tanchjim Origin at an average of 4.2/5 on Head-Fi. Overall sentiment: Very Positive.

URL to full Review

Head-Fi.org original ranking

Letshuoer S15 reviewed by Head-Fi.org

Head-Fi.org 8.3 * score rescaled + normalized
21 community members have rated the LETSHUOER S15 at an average of 4.4/5 on Head-Fi. Overall sentiment: Excellent.

URL to full Review

Head-Fi.org original ranking

Tanchjim Origin (more reviews)

Tanchjim Origin reviewed by Kois Archive

Kois Archive 7.6 Reviewer Score
S- Tuning
A+ Tech
Rating: A | Value: ⭐⭐ | Comfort: 8 good vocals and treble bass could be more fun

Kois Archive original ranking

Kois Archive Youtube Channel

Tanchjim Origin reviewed by Tim Tuned

Tim Tuned 7.5 Reviewer Score
A Tuning
A+ Tech
Beautiful timbre and treble Bass can use a bit more...volume

Tim Tuned original ranking

Tim Tuned Youtube Channel
Bass: A+ Mids: A+ Treble: S

Tanchjim Origin reviewed by Z-Reviews

Z-Reviews 7.2 * score rescaled + normalized
check links for more info:

Z-Reviews original ranking

Z-Reviews Youtube Channel
YouTube video thumbnail

Tanchjim Origin reviewed by Audionotions

Audionotions 7 Reviewer Score
Yes, it's expensive for a single DD imaging and separation is top tier with very good layering - frankly, I haven't heard many sets near this price that have done the same. There is a bit of subbass roll off but midbass hits hard. It's on the brighter side but never becomes shouty or sibilant. Timbre is good with vocals a bit forward in the mix. Tuning nozzles are a gimmick - they all sound the same. A better Kato in every way. I had a lot of trouble with fit on with this set - did not have the same problem with Hana 2021.

Audionotions original ranking

Website (Audionotions)

Tanchjim Origin reviewed by Gizaudio Axel

Gizaudio Axel 7 Reviewer Score
A- Tuning
A- Tech
Smooth, detailed, and vocal-centric sound. Cohesive, vocal-focused tuning with dynamic bass, smooth extended treble, and excellent detail. Could use more sub-bass.

Gizaudio Axel original ranking

Gizaudio Axel Youtube Channel

Tanchjim Origin reviewed by Precogvision

Precogvision 6.5 Reviewer Score
B+ Tuning
B+ Tech
Japanese flavor of tuning (mid-bass and upper-mid focus) finally done justice. Strong technical chops and slightly forward.

Precogvision original ranking

Precogvision Youtube Channel
Bass: B Mids: A- Treble: A- Dynamics: A- Details: B+ Imaging: A-

Tanchjim Origin User Review Score

Average User Scores

Average User Score:

Based on 1 user reviews

7.6

Strongly Favorable

Letshuoer S15 User Review Score

Average User Scores

Average User Score: n/a

Based on 0 user reviews

No user reviews yet. Be the first one who writes a review!

Tanchjim Origin Gaming Score

Gaming Score & Grade

  • The gaming score is prioritizing technical capabilities of the IEM (Separation, Layering, Soundstage) and good value.

Gaming Score

7.2

Gaming Grade

A-

Letshuoer S15 Gaming Score

Gaming Score & Grade

  • The gaming score is prioritizing technical capabilities of the IEM (Separation, Layering, Soundstage) and good value.

Gaming Score

6.8

Gaming Grade

B+

Tanchjim Origin Scorings

Average Technical & Tuning Grades

Average Tunign Grade

A-
  • Expect an inviting tonal blend that adapts well to genres while staying largely composed. It strikes a nice blend of warmth and clarity.

Average Technical Grade

A-
  • You get a controlled, composed performance, marrying decent clarity with a still-modest sense of space. A safe technical performer for the price bracket.
Bass A-
Bass is strong and well-defined, delivering slam with admirable control. Electronic drops hit with authority.
Mids A-
It delivers an excellent midrange that feels vibrant and true to life. It balances clarity with natural smoothness.
Treble A-
Highs feel superbly executed, revealing micro-detail without hint of sibilance. Highs stay smooth even at volume.
Dynamics B
The performance feels robust, with satisfying punch and natural transitions. Nuances are easy to follow.
Soundstage A-
The stage stretches in every direction, carving out clear three-dimensional pockets for each player. Placement accuracy impresses from the start.
Details B+
Finer gestures snap into focus without sounding clinical or forced. Layering holds strong across genres.
Imaging B+
Good imaging with precise instrument placement and clear front/back localization. Positions snap into place convincingly.
Gaming A-
Good fundamental spatial awareness for most gaming scenarios. Handles basic positioning well but may lack nuance in complex situations. Value-to-cost may not be optimal for gaming-focused users.

Letshuoer S15 Scorings

Average Technical & Tuning Grades

Average Tunign Grade

A-
  • A smooth, agreeable balance keeps the presentation engaging without obvious flaws. Only sensitive ears will nitpick the bumps.

Average Technical Grade

A-
  • Technical chops are reliable, pairing tidy separation with a soundstage that stays conservative. Micro-detail is decent, though never spotlighted.
Bass B+
The bass brings healthy impact, complementing mixes without overpowering them. It keeps up with faster passages cleanly.
Mids A
It delivers an excellent midrange that feels vibrant and true to life. It balances clarity with natural smoothness.
Treble B+
Highs sound lively and extended while remaining controlled. Detail retrieval keeps shimmer intact.
Dynamics B
Dynamic expression is good, delivering solid impact and convincing contrast. Percussion lands with convincing weight.
Soundstage B+
Lateral spread stretches comfortably while front/back cues start to feel convincing. You can trace front-to-back movement.
Details B+
Good resolution with clear articulation of nuances that keeps complex passages intelligible. Micro-details pop without sounding forced.
Imaging A-
Spatial cues respond immediately, reflecting every movement in the mix. Spatial cues respond instantly to the mix.
Gaming B+
Respectable environmental presentation favors atmosphere over precision. Detects obvious directional cues while conveying game world ambiance. Value-to-cost may not be optimal for gaming-focused users.

Tanchjim Origin User Reviews

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wpzdm
7.6

A weeb set done right (ww

Pros
Great bass at this price. Lush female vocal.
Cons
Heavy

Letshuoer S15 User Reviews

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