Short answer: the TANGZU XuanNv. It ranks #59 of 450 in-ear headphones by sound quality, rated 4.6/5, at $79; the DUNU Titan S2 ranks #126, rated 4.4/5, and costs $79.99, so there is little reason to consider the other one.
The case for the TANGZU XuanNv: Its dual dynamic drivers score 80.4 in squig.link hobbyist measurements, with a smooth 1.32 dB deviation and a slightly warm tilt. The catch: 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 TANGZU XuanNv. It is rated higher for sound quality than the DUNU Titan S2 and costs less, so it is the default pick unless a specific strength of the other one matters more to you.
Still deciding? The full Headphones rankings cover every ranked option.
Specifications Side By Side
| TANGZU XuanNv | DUNU Titan S2 | |
|---|---|---|
| Price | $79.00 | $79.99 |
| Ranked | #59 of 450 in In-Ear Headphones | #126 of 450 in In-Ear Headphones |
| Form Factor | In-ear | In-ear |
| Back | Closed | Closed |
| Harman Preference Score | 80 (median of 6 squig.link measurements, calibrated to AutoEQ) | 78 (median of 25 squig.link measurements, calibrated to AutoEQ) |
| Deviation From Target | 1.32 dB standard deviation | 1.72 dB standard deviation |
| Tonal Tilt | -0.45 (negative is warmer, positive brighter) | -0.10 (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 | Dynamic | Dynamic |
| Drivers | 1 x 10mm dynamic + 1 x 8mm dynamic | 1 x dynamic |
| Impedance | 8.5 ohms | 16 ohms |
| Sensitivity | 98 dB | 107 dB/mW |
| Frequency Response | 7Hz - 20kHz (Manufacturer specified) | 5Hz - 40kHz (Manufacturer specified) |
| Built-in Microphone | No | - |
| Weight | - | 0 lbs (8.6 g) per earbud |
Related Headphone Comparisons
More worthwhile head-to-heads for TANGZU XuanNv:
- Shuoer Galileo vs TANGZU XuanNv
- EPZ G30 vs TANGZU XuanNv
- Moondrop Golden Ages 2 vs TANGZU XuanNv
- TANGZU XuanNv vs Tin HiFi T4 Plus
- EPZ G30 vs DUNU Titan S2
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
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
DUNU Titan S2: $79.99 Amazon eBay
Full DUNU Titan S2 review and specifications →
| Released | Jun 2024 (2 years ago) |
|---|---|
| Back | Closed |
| Connection | Wired |
| Deviation From Target | 1.72 dB standard deviation |
| Driver Type | Dynamic |
| Drivers | 1 x dynamic |
| Form Factor | In-ear |
| Frequency Response | 5Hz - 40kHz (Manufacturer specified) |
| Harman Preference Score | 78 (median of 25 squig.link measurements, calibrated to AutoEQ) |
| Impedance | 16 ohms |
| Sensitivity | 107 dB/mW |
| Sub-bass Extension | Within 6 dB of target down to 20 Hz (-2.5 dB at 30 Hz) |
| Tonal Tilt | -0.10 (negative is warmer, positive brighter) |
| Weight | 0 lbs (8.6 g) per earbud |
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons