Short answer: a tie on sound quality. Both are rated 4.4/5 (#99 and #102 of 450 in-ear headphones) at nearly the same price ($129 vs $129.99), so choose on features and fit.
Why pick the Kefine Quatio: In the median of 13 squig.link measurements it scores 78.8 with a smooth 1.38 dB spread and no treble peak above 1.5 dB, so cymbals and sibilance never turn harsh. The tradeoff: A 4 dB dip near 3.6 kHz and presence about 2.5 dB under target push vocals slightly back and soften attack.
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 Kefine Quatio or the Moondrop Starfield 2 on features: they are rated the same for sound quality at close to the same price.
Want more options? Browse the full Headphones rankings.
Specifications Side By Side
| Kefine Quatio | Moondrop Starfield 2 | |
|---|---|---|
| Price | $129.00 | $129.99 |
| Ranked | #99 of 450 in In-Ear Headphones | #102 of 450 in In-Ear Headphones |
| Form Factor | In-ear | In-ear |
| Back | Closed | Closed |
| Harman Preference Score | 79 (median of 13 squig.link measurements, calibrated to AutoEQ) | 79 (median of 7 squig.link measurements, calibrated to AutoEQ) |
| Deviation From Target | 1.38 dB standard deviation | 1.65 dB standard deviation |
| Tonal Tilt | -0.50 (negative is warmer, positive brighter) | +0.22 (negative is warmer, positive brighter) |
| Sub-bass Extension | Within 6 dB of target down to 20 Hz (+0.6 dB at 30 Hz) | Within 6 dB of target down to 20 Hz (-2.5 dB at 30 Hz) |
| Connection | Wired | Wired |
| Driver Type | Hybrid (2 dynamic + 2 balanced armature) | Dynamic |
| Drivers | 1 x 10mm dynamic + 1 x 8mm dynamic + 2 x balanced armature | 1 x 10mm dynamic |
| Impedance | 32 ohms | 15 ohms |
| Sensitivity | 107 dB | 122 dB/Vrms |
| Frequency Response | 20Hz - 20kHz (Manufacturer specified) | 12Hz - 24kHz (Manufacturer specified) |
| Built-in Microphone | No | No |
Related Headphone Comparisons
How Kefine Quatio compares with other leading options:
- Final Audio A4000 vs Kefine Quatio
- Shuoer S12 vs Kefine Quatio
- Kefine Quatio vs Sennheiser IE 200
- Kefine Quatio vs Queen of Audio Ryusei
- Kefine Quatio vs ArpegEar Hane
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
Kefine Quatio: $129.00 Amazon eBay
Pros: In the median of 13 squig.link measurements it scores 78.8 with a smooth 1.38 dB spread and no treble peak above 1.5 dB, so cymbals and sibilance never turn harsh. Bass rises about 1.8 dB above target with full extension to 20 Hz, giving a warm, full low end that suits bass lovers. Its 32 ohm, 107 dB load is easy to drive from a phone.
Cons: A 4 dB dip near 3.6 kHz and presence about 2.5 dB under target push vocals slightly back and soften attack. The air band runs 1.3 dB low, so it sounds less airy and spacious than brighter rivals, and the equally rated 7Hz Salnotes Dioko costs less.
Full Kefine Quatio review and specifications →
| Released | Jul 2025 (1 year ago) |
|---|---|
| Back | Closed |
| Built-in Microphone | No |
| Connection | Wired |
| Deviation From Target | 1.38 dB standard deviation |
| Driver Type | Hybrid (2 dynamic + 2 balanced armature) |
| Drivers | 1 x 10mm dynamic + 1 x 8mm dynamic + 2 x balanced armature |
| Form Factor | In-ear |
| Frequency Response | 20Hz - 20kHz (Manufacturer specified) |
| Harman Preference Score | 79 (median of 13 squig.link measurements, calibrated to AutoEQ) |
| Impedance | 32 ohms |
| Sensitivity | 107 dB |
| Sub-bass Extension | Within 6 dB of target down to 20 Hz (+0.6 dB at 30 Hz) |
| Tonal Tilt | -0.50 (negative is warmer, positive brighter) |
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
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