Kiwi Ears Airoso VS Tanchjim Fission

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

Kiwi Ears Airoso and Tanchjim Fission use 1DD+4BA and 1DD driver setups respectively. Kiwi Ears Airoso costs $130 while Tanchjim Fission costs $130. Tanchjim Fission holds a slight 0.3-point edge in reviewer scores (7 vs 7.3). Tanchjim Fission has significantly better mids with a 1-point edge, Tanchjim Fission has significantly better treble with a 2-point edge, Kiwi Ears Airoso has significantly better dynamics with a 2-point edge and Tanchjim Fission has significantly better soundstage with a 1-point edge.

Insights

Jaytiss Score
Kiwi Ears Airoso
7 /10
Jaytiss Score
Tanchjim Fission
7.3 /10
Score gap: 0.3
Metric Kiwi Ears Airoso Tanchjim Fission
Mids 6 7
Treble 5 7
Soundstage 6 7
Dynamics 7 5
Tonality 6 6.3
Technicalities 5 7
Take these comparisons with a grain of salt—we don't have enough Kiwi Ears Airoso and Tanchjim Fission reviews saved yet to provide an unbiased result.

Jaytiss Reviews Comparison

Tanchjim Fission reviewed by

Jaytiss 7.3 Reviewer Score
B Tuning
A- Tech
Such a Fantastic little set.
Youtube Video Summary

The Tanchjim Fission presents fantastic value right out of the box, largely thanks to its inclusion of a high-quality USB-C DAC cable with 3.5mm and 4.4mm terminations. The all-metal build feels premium, and the included cable is extremely silky and pleasant to use. A standout feature is the set of interchangeable nozzles that allow for sound tuning; the gold nozzle is the clear winner, providing the best balance, while others can make the bass less impactful. However, the fit can be a challenge for some as the shell lacks a pronounced lip, and the nozzles can be tricky to remove and replace.

Sonically, the Fission is extremely close to the more expensive and beloved Tanchjim Origin, offering a smooth, energetic sound with a tonality that is highly enjoyable. It provides a touch of warmth, pristine detail, and good air, making it a set that is easy to recommend and daily drive. When compared to other sets in its price range, it holds its own against competitors like the Dunu Kima (which has better fit and accessories) and the Kiwi Ears Quintet (which offers more bass), though the choice ultimately comes down to personal preference for tonality and the value placed on its tunable nature.

While it doesn't break the so-called "curse of the $150 IEM," the Fission is a strong contender and gets a full recommendation. Its few cons include a fit that may not work for all ears and a bass quantity that some may wish was greater. For those who value its specific sonic qualities, the excellent build, and the incredible package value with the included DAC cable, the Tanchjim Fission is a fantastic and competitive option that is very easy to enjoy.

Mids: A- Treble: A- Dynamics: C+ Soundstage: A-

Jaytiss original ranking

Jaytiss Youtube Channel
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Price: $129.99

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Kiwi Ears Airoso Details

Driver Configuration: 1DD+4BA

Tuning Type: Neutral, Warm

Brand: Kiwi Ears Top Kiwi Ears IEMs

Price (Msrp): $129.99

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Tanchjim Fission Details

Driver Configuration: 1DD

Tuning Type: Neutral, Vocal-focused

Brand: TANCHJIM Top TANCHJIM IEMs

Price (Msrp): $129.99

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Kiwi Ears Airoso Scorings

Average Technical & Tuning Grades

Average Tunign Grade

B
  • A mostly enjoyable signature keeps things listenable despite a handful of quirks. It handles most playlists without major complaints.

Average Technical Grade

C+
  • It offers a competent showing, maintaining cohesion on straightforward arrangements. Complex passages start to challenge it, but never derail the show.
Mids B
It offers engaging mid frequencies with pleasing clarity and layering. Details emerge without becoming harsh.
Treble C+
Treble feels agreeable overall, bringing sparkle without significant fatigue. You get a polite sense of air.
Dynamics A-
It delivers crisp, authoritative dynamics that keep music thrilling. Subtle level shifts are clearly conveyed.
Soundstage B
The presentation supplies a believable venue outline where each instrument owns its pocket of space. The stage opens up nicely for live cuts.

Tanchjim Fission Scorings

Average Technical & Tuning Grades

Average Tunign Grade

B
  • A mostly enjoyable signature keeps things listenable despite a handful of quirks. It handles most playlists without major complaints.

Average Technical Grade

A-
  • Technical chops are reliable, pairing tidy separation with a soundstage that stays conservative. Micro-detail is decent, though never spotlighted.
Mids A-
It delivers an excellent midrange that feels vibrant and true to life. It balances clarity with natural smoothness.
Treble A-
The treble is exquisitely tuned, combining crystal detail with relaxed delivery. Micro-details emerge effortlessly.
Dynamics C+
You get reliable macrodynamics, with micro shifts that remain only adequate. A reliable performer for most tracks.
Soundstage A-
All dimensions bloom together, producing an expansive venue that feels carefully rendered. You can map the ensemble easily.

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