Short answer: the Moondrop Starfield 2. It ranks #102 of 450 in-ear headphones by sound quality, rated 4.4/5, at $129.99; the Tanchjim Fission ranks #201, rated 4.2/5, at $129.99. Close enough in price that the sound-quality gap is the deciding factor.
What the Moondrop Starfield 2 does well: Seven squig.link measurements give the Starfield 2 a preference score of 78.6, with mids and presence all within about 1 dB of target so vocals and instruments sound open and well defined. Watch for: Sub-bass falls about 2.5 dB short at 30 Hz, so the deepest rumble is lighter than on bassier sets.
Buy the Moondrop Starfield 2. It is rated higher for sound quality than the Tanchjim Fission at the same price, so it is the default pick unless a specific strength of the other one matters more to you.
Looking for alternatives? See the complete Headphones rankings.
Specifications Side By Side
| Moondrop Starfield 2 | Tanchjim Fission | |
|---|---|---|
| Price | $129.99 | $129.99 |
| Ranked | #102 of 450 in In-Ear Headphones | #201 of 450 in In-Ear Headphones |
| Form Factor | In-ear | In-ear |
| Back | Closed | Closed |
| Harman Preference Score | 79 (median of 7 squig.link measurements, calibrated to AutoEQ) | 76 (median of 13 squig.link measurements, calibrated to AutoEQ) |
| Deviation From Target | 1.65 dB standard deviation | 1.99 dB standard deviation |
| Tonal Tilt | +0.22 (negative is warmer, positive brighter) | +0.01 (negative is warmer, positive brighter) |
| Sub-bass Extension | Within 6 dB of target down to 20 Hz (-2.5 dB at 30 Hz) | Within 6 dB of target down to 20 Hz (-3.3 dB at 30 Hz) |
| Connection | Wired | Wired |
| Driver Type | Dynamic | Dynamic |
| Drivers | 1 x 10mm dynamic | 1 x dynamic |
| Impedance | 15 ohms | 16 ohms |
| Sensitivity | 122 dB/Vrms | 126 dB |
| Frequency Response | 12Hz - 24kHz (Manufacturer specified) | 8Hz - 48kHz (Manufacturer specified) |
| Built-in Microphone | No | - |
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- Moondrop Starfield 2 vs Sennheiser IE 200
- Kefine Quatio vs Moondrop Starfield 2
- Moondrop Starfield 2 vs Queen of Audio Ryusei
- Sennheiser IE 200 vs Tanchjim Fission
Prices on this page were last checked October 11, 2026 at 4:59 PM UTC. Product prices and availability are accurate as of that date/time and are subject to change; the price and availability shown on Amazon at the time of purchase will apply to the purchase of this product.
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The Two Headphones In Full
Moondrop Starfield 2: $129.99 Amazon eBay
Pros: Seven squig.link measurements give the Starfield 2 a preference score of 78.6, with mids and presence all within about 1 dB of target so vocals and instruments sound open and well defined. Midbass sits 1.7 dB above target for warmth without masking detail. At 15 ohms and 122 dB/Vrms it gets loud from any phone or dongle.
Cons: Sub-bass falls about 2.5 dB short at 30 Hz, so the deepest rumble is lighter than on bassier sets. Air runs 3.9 dB high with a 6.6 dB peak near 8.1 kHz, which can make cymbals and esses sound hot, and the low 15 ohm impedance can let high output impedance sources shift its tuning.
Full Moondrop Starfield 2 review and specifications →
| Released | Jul 2023 (3 years ago) |
|---|---|
| Back | Closed |
| Built-in Microphone | No |
| Connection | Wired |
| Deviation From Target | 1.65 dB standard deviation |
| Driver Type | Dynamic |
| Drivers | 1 x 10mm dynamic |
| Form Factor | In-ear |
| Frequency Response | 12Hz - 24kHz (Manufacturer specified) |
| Harman Preference Score | 79 (median of 7 squig.link measurements, calibrated to AutoEQ) |
| Impedance | 15 ohms |
| Sensitivity | 122 dB/Vrms |
| Sub-bass Extension | Within 6 dB of target down to 20 Hz (-2.5 dB at 30 Hz) |
| Tonal Tilt | +0.22 (negative is warmer, positive brighter) |
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
Tanchjim Fission: $129.99 Amazon eBay
Full Tanchjim Fission review and specifications →
| Released | May 2025 (1 year ago) |
|---|---|
| Back | Closed |
| Connection | Wired |
| Deviation From Target | 1.99 dB standard deviation |
| Driver Type | Dynamic |
| Drivers | 1 x dynamic |
| Form Factor | In-ear |
| Frequency Response | 8Hz - 48kHz (Manufacturer specified) |
| Harman Preference Score | 76 (median of 13 squig.link measurements, calibrated to AutoEQ) |
| Impedance | 16 ohms |
| Sensitivity | 126 dB |
| Sub-bass Extension | Within 6 dB of target down to 20 Hz (-3.3 dB at 30 Hz) |
| Tonal Tilt | +0.01 (negative is warmer, positive brighter) |
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons