The ThieAudio Legacy 4 ranks #18 out of 297 total In-Ear Headphones for sound quality. See all Headphones rankings for every top pick.
Brand: Thieaudio
Prices on this page were last checked October 10, 2026 at 5:37 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.
#18 ThieAudio Legacy 4: $50.99 Amazon eBay
Pros: The Legacy 4 pairs one dynamic driver with three balanced armatures, and the median of twelve hobbyist measurements on squig.link shows bass essentially on target, slightly above it at 30 Hz. With about 1.2 dB of unevenness and a preference score of 84, its bass, mids and treble sit within half a dB of target on average. It rates higher than the less expensive CCA Phoenix, and 108 dB sensitivity makes it easy to drive.
Cons: A 4.3 dB dip near 3.75 kHz and a presence band about 2.3 dB low can push vocals back and soften the attack of guitars and snares. There is no microphone, and the EPZ G20 and EPZ Q1 Pro both rate higher while costing a little less.
| Back | Closed |
|---|---|
| Built-in Microphone | No |
| Connection | Wired |
| Deviation From Target | 1.19 dB standard deviation |
| Driver Type | Hybrid (1 dynamic + 3 balanced armature) |
| Drivers | 1 x 8mm dynamic + 3 x balanced armature |
| Form Factor | In-ear |
| Frequency Response | 20Hz - 20kHz (Manufacturer specified) |
| Harman Preference Score | 84 (median of 12 squig.link measurements, calibrated to AutoEQ) |
| Impedance | 9.4 ohms |
| Sensitivity | 108 dB |
| Sub-bass Extension | Within 6 dB of target down to 20 Hz (+0.4 dB at 30 Hz) |
| Tonal Tilt | -0.10 (negative is warmer, positive brighter) |
- Reviews, Comparisons and Sound Samples
Head-to-Head Comparisons
1 comparisonsNo comparisons match that search.