Short answer: a tie on sound quality. Both are rated 4.6/5 (#42 and #59 of 450 in-ear headphones) at nearly the same price ($79.99 vs $79), so choose on features and fit.
The case for the EPZ G30: Four hobbyist measurements on squig.link give it a preference score of 81.5 with a smooth 1.35 dB deviation. The tradeoff: Presence falls about 3.2 dB below target, which tucks vocals slightly behind the instruments.
What the TANGZU XuanNv does well: Its dual dynamic drivers score 80.4 in squig.link hobbyist measurements, with a smooth 1.32 dB deviation and a slightly warm tilt. Watch for: Presence sits about 3.1 dB below target with a 5.2 dB dip near 6.2 kHz, so vocal articulation and snare crack lose some bite.
Buy the EPZ G30 or the TANGZU XuanNv on features: they are rated the same for sound quality at close to the same price.
Still deciding? The full Headphones rankings cover every ranked option.
Specifications Side By Side
| EPZ G30 | TANGZU XuanNv | |
|---|---|---|
| Price | $79.99 | $79.00 |
| Ranked | #42 of 450 in In-Ear Headphones | #59 of 450 in In-Ear Headphones |
| Form Factor | In-ear | In-ear |
| Back | Closed | Closed |
| Harman Preference Score | 82 (median of 4 squig.link measurements, calibrated to AutoEQ) | 80 (median of 6 squig.link measurements, calibrated to AutoEQ) |
| Deviation From Target | 1.35 dB standard deviation | 1.32 dB standard deviation |
| Tonal Tilt | -0.17 (negative is warmer, positive brighter) | -0.45 (negative is warmer, positive brighter) |
| Sub-bass Extension | Within 6 dB of target down to 20 Hz (-1.4 dB at 30 Hz) | Within 6 dB of target down to 20 Hz (+0.6 dB at 30 Hz) |
| Connection | Wired | Wired |
| Driver Type | Hybrid (1 dynamic + 1 balanced armature) | Dynamic |
| Drivers | 1 x 9.2mm dynamic + 1 x balanced armature | 1 x 10mm dynamic + 1 x 8mm dynamic |
| Weight | 0 lbs (4.4 g) per earbud | - |
| Built-in Microphone | Yes | No |
| Impedance | - | 8.5 ohms |
| Sensitivity | - | 98 dB |
| Frequency Response | - | 7Hz - 20kHz (Manufacturer specified) |
Related Headphone Comparisons
How EPZ G30 compares with other leading options:
- EPZ G20 vs EPZ G30
- EPZ G10 vs EPZ G30
- EPZ G30 vs Moondrop Golden Ages 2
- EPZ G30 vs DUNU Titan S2
- EPZ 550 vs EPZ G30
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
EPZ G30: $79.99 Amazon eBay
Pros: Four hobbyist measurements on squig.link give it a preference score of 81.5 with a smooth 1.35 dB deviation. Bass sits about 0.9 dB above target with low mids close behind, giving a warm, full sound that suits bassy tastes. It weighs just 4.4 g per earbud and includes a built-in microphone, so it works for calls as well as music.
Cons: Presence falls about 3.2 dB below target, which tucks vocals slightly behind the instruments. A 5.0 dB peak near 8.1 kHz followed by a 5.6 dB dip near 11.9 kHz gives cymbals an uneven sheen and trims top-end air.
Full EPZ G30 review and specifications →
| Back | Closed |
|---|---|
| Built-in Microphone | Yes |
| Connection | Wired |
| Deviation From Target | 1.35 dB standard deviation |
| Driver Type | Hybrid (1 dynamic + 1 balanced armature) |
| Drivers | 1 x 9.2mm dynamic + 1 x balanced armature |
| Form Factor | In-ear |
| Harman Preference Score | 82 (median of 4 squig.link measurements, calibrated to AutoEQ) |
| Sub-bass Extension | Within 6 dB of target down to 20 Hz (-1.4 dB at 30 Hz) |
| Tonal Tilt | -0.17 (negative is warmer, positive brighter) |
| Weight | 0 lbs (4.4 g) per earbud |
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
TANGZU XuanNv: $79.00 Amazon eBay
Pros: Its dual dynamic drivers score 80.4 in squig.link hobbyist measurements, with a smooth 1.32 dB deviation and a slightly warm tilt. Bass and low mids stay within half a decibel of target and sub-bass extends cleanly to 20 Hz, so it suits warm and bassy listeners who want fullness without boom. Treble peaks are mild, topping out at 1.5 dB near 8.2 kHz, which keeps cymbals and sibilance relaxed for long sessions.
Cons: Presence sits about 3.1 dB below target with a 5.2 dB dip near 6.2 kHz, so vocal articulation and snare crack lose some bite. The 98 dB sensitivity is a little lower than most in-ears, so expect to turn a phone up further than usual.
Full TANGZU XuanNv review and specifications →
| Released | Apr 2024 (2 years ago) |
|---|---|
| Back | Closed |
| Built-in Microphone | No |
| Connection | Wired |
| Deviation From Target | 1.32 dB standard deviation |
| Driver Type | Dynamic |
| Drivers | 1 x 10mm dynamic + 1 x 8mm dynamic |
| Form Factor | In-ear |
| Frequency Response | 7Hz - 20kHz (Manufacturer specified) |
| Harman Preference Score | 80 (median of 6 squig.link measurements, calibrated to AutoEQ) |
| Impedance | 8.5 ohms |
| Sensitivity | 98 dB |
| Sub-bass Extension | Within 6 dB of target down to 20 Hz (+0.6 dB at 30 Hz) |
| Tonal Tilt | -0.45 (negative is warmer, positive brighter) |
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons