Short answer: the Unique Melody Stardust. It ranks #596 of 1291 in-ear headphones by sound quality, rated 3.8/5, at $799; the HIFIMAN RE2000 ranks #685, rated 3.6/5, at $799. Close enough in price that the sound-quality gap is the deciding factor.
What the Unique Melody Stardust does well: A six driver hybrid with two dynamic drivers and four balanced armatures in a 3D printed titanium shell. The tradeoff: Treble sits about 4.3 dB below target, a dark, relaxed balance.
The case for the HIFIMAN RE2000: Crinacle’s measurement gives a Harman preference score of 69 with a deviation of 2.63 dB, a respectable match to the target most listeners prefer. The catch: A score of 69 is only middling for a flagship in-ear, and a response that deviates from the target by 2.63 dB leaves audible coloration.
Buy the Unique Melody Stardust. It is rated higher for sound quality than the HIFIMAN RE2000 at the same price, which makes it the one to get unless you need something the other one does better.
Still deciding? The full Headphones rankings cover every ranked option.
A six driver hybrid with two dynamic drivers and four balanced armatures in a 3D printed titanium shell.
HiFiGo $799.00 eBay
Crinacle’s measurement gives a Harman preference score of 69 with a deviation of 2.63 dB, a respectable match to the target most listeners prefer.
Amazon $799.00 eBayPrices on this page were last checked October 16, 2026 at 5:46 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.
As an eBay Partner, we may be compensated if you make a purchase.
Specifications Side By Side
| Unique Melody Stardust | HIFIMAN RE2000 | |
|---|---|---|
| Price | $799.00 | $799.00 |
| Ranked | #596 of 1291 in In-Ear Headphones | #685 of 1291 in In-Ear Headphones |
| Form Factor | In-ear | In-ear |
| Back | Closed | Closed |
| Connection | Wired | Wired |
| Driver Type | Hybrid | - |
| Drivers | 2 x dynamic + 4 x balanced armature | - |
| Sensitivity | 106 dB @1kHz | - |
| Harman Preference Score | 71 (median of 7 squig.link measurements, calibrated to AutoEQ) | 69 (measured by crinacle, via AutoEQ) |
| Deviation From Target | 2.08 dB standard deviation | 2.63 dB standard deviation |
| Tonal Tilt | -0.57 (negative is warmer, positive brighter) | +0.32 (negative is warmer, positive brighter) |
| Sub-bass Extension | Within 6 dB of target down to 20 Hz (-1.4 dB at 30 Hz) | - |
Related Headphone Comparisons
How Unique Melody Stardust compares with other leading options: