Short answer: the Symphonium Audio Triton. It ranks #352 of 450 in-ear headphones by sound quality, rated 3.5/5, at $899; the DUNU Zen Pro ranks #366, rated 3.4/5, and costs $899.99, which makes this an easy call rather than a real tradeoff.
What the Symphonium Audio Triton does well: The hybrid of one dynamic driver and two balanced armatures keeps the bass and midrange close to target, with the bass band within 0.5 dB and the upper mids within 0.9 dB in squig.link measurements. The catch: Across hobbyist measurements the presence band sits 5.1 dB low with a 6.6 dB dip near 6.3 kHz, which dulls vocal edge, cymbals and fine detail.
What the DUNU Zen Pro does well: A single dynamic driver with bass, low mids and upper mids all within half a dB of target in squig.link’s hobbyist measurements, so voices and instruments keep a natural, even body. The tradeoff: An 8.3 dB dip near 6.4 kHz and a 4 dB shortfall across 3 to 10 kHz dull cymbals and blunt the edge of vocals, while a 4.6 dB peak near 11.5 kHz adds a little uneven sparkle.
Buy the Symphonium Audio Triton. It is rated higher for sound quality than the DUNU Zen Pro and costs less, so only choose the other one for a particular feature it does better.
Want more options? Browse the full Headphones rankings.
Specifications Side By Side
| Symphonium Audio Triton | DUNU Zen Pro | |
|---|---|---|
| Price | $899.00 | $899.99 |
| Ranked | #352 of 450 in In-Ear Headphones | #366 of 450 in In-Ear Headphones |
| Form Factor | In-ear | In-ear |
| Back | Closed | Closed |
| Harman Preference Score | 68 (measured by crinacle, via AutoEQ) | 66 (measured by crinacle, via AutoEQ) |
| Deviation From Target | 2.43 dB standard deviation | 3.11 dB standard deviation |
| Tonal Tilt | -0.55 (negative is warmer, positive brighter) | -0.11 (negative is warmer, positive brighter) |
| Sub-bass Extension | Within 6 dB of target down to 20 Hz (-2.3 dB at 30 Hz) | Within 6 dB of target down to 20 Hz (-3.7 dB at 30 Hz) |
| Connection | Wired | Wired |
| Driver Type | Hybrid (1 dynamic + 2 balanced armature) | Dynamic |
| Drivers | 1 x dynamic + 2 x balanced armature | - |
| Impedance | 8.3 ohms | 16 ohms |
| Sensitivity | 107 dB SPL/V | 112 dB |
| Frequency Response | 11Hz - 21kHz (Manufacturer specified) | 5Hz - 40kHz (Manufacturer specified) |
| Built-in Microphone | No | No |
Related Headphone Comparisons
More worthwhile head-to-heads for Symphonium Audio Triton:
- SoftEars Twilight vs Symphonium Audio Triton
- HIFIMAN RE2000 vs Symphonium Audio Triton
- Sennheiser IE 600 vs Symphonium Audio Triton
- Symphonium Audio Triton vs JVC HA-FW1500
- Symphonium Audio Triton vs SeeAudio Neo
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.
As an eBay Partner, we may be compensated if you make a purchase.
The Two Headphones In Full
Symphonium Audio Triton: $899.00 Headphones.com eBay
Pros: The hybrid of one dynamic driver and two balanced armatures keeps the bass and midrange close to target, with the bass band within 0.5 dB and the upper mids within 0.9 dB in squig.link measurements. Sub-bass still reaches 20 Hz within 6 dB of target, sitting 2.3 dB low at 30 Hz. At 107 dB/V and 8.3 ohms it plays loud from a phone.
Cons: Across hobbyist measurements the presence band sits 5.1 dB low with a 6.6 dB dip near 6.3 kHz, which dulls vocal edge, cymbals and fine detail. Crinacle’s preference score of 68 is middling, and the SoftEars Twilight rates higher at a similar price.
Full Symphonium Audio Triton review and specifications →
| Back | Closed |
|---|---|
| Built-in Microphone | No |
| Connection | Wired |
| Deviation From Target | 2.43 dB standard deviation |
| Driver Type | Hybrid (1 dynamic + 2 balanced armature) |
| Drivers | 1 x dynamic + 2 x balanced armature |
| Form Factor | In-ear |
| Frequency Response | 11Hz - 21kHz (Manufacturer specified) |
| Harman Preference Score | 68 (measured by crinacle, via AutoEQ) |
| Impedance | 8.3 ohms |
| Sensitivity | 107 dB SPL/V |
| Sub-bass Extension | Within 6 dB of target down to 20 Hz (-2.3 dB at 30 Hz) |
| Tonal Tilt | -0.55 (negative is warmer, positive brighter) |
EQ preset to match the Harman target
Set a preamp of -4.7 dB, then add these filters in any parametric equalizer (Wavelet, Equalizer APO, Peace, or a player with parametric EQ). Calculated by AutoEQ from its measured frequency response.
| Filter | Frequency | Gain | Q |
|---|---|---|---|
| Low shelf | 105 Hz | -1.5 dB | 0.70 |
| Peak | 206 Hz | -2.9 dB | 0.48 |
| Peak | 3,027 Hz | +5.8 dB | 0.38 |
| Peak | 1,713 Hz | -6.4 dB | 0.95 |
| Peak | 70 Hz | +3.1 dB | 0.69 |
| High shelf | 10,000 Hz | -3.9 dB | 0.70 |
| Peak | 3,424 Hz | +1.1 dB | 3.91 |
| Peak | 5,290 Hz | -1.6 dB | 5.99 |
| Peak | 6,437 Hz | +1.9 dB | 6.00 |
| Peak | 2,469 Hz | -0.7 dB | 4.04 |
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
DUNU Zen Pro: $899.99 HiFiGo eBay
Pros: A single dynamic driver with bass, low mids and upper mids all within half a dB of target in squig.link’s hobbyist measurements, so voices and instruments keep a natural, even body. It matches the rating of the Unique Melody MEST Mk2 at a much lower price. At 16 ohms and 112 dB sensitivity it is easy to drive from a phone.
Cons: An 8.3 dB dip near 6.4 kHz and a 4 dB shortfall across 3 to 10 kHz dull cymbals and blunt the edge of vocals, while a 4.6 dB peak near 11.5 kHz adds a little uneven sparkle. Sub-bass sits about 3.5 dB below target, so the deepest rumble is lighter than the midbass suggests, and its 3.1 dB deviation makes it one of the less even tunings at this level.
Full DUNU Zen Pro review and specifications →
| Back | Closed |
|---|---|
| Built-in Microphone | No |
| Connection | Wired |
| Deviation From Target | 3.11 dB standard deviation |
| Driver Type | Dynamic |
| Form Factor | In-ear |
| Frequency Response | 5Hz - 40kHz (Manufacturer specified) |
| Harman Preference Score | 66 (measured by crinacle, via AutoEQ) |
| Impedance | 16 ohms |
| Sensitivity | 112 dB |
| Sub-bass Extension | Within 6 dB of target down to 20 Hz (-3.7 dB at 30 Hz) |
| Tonal Tilt | -0.11 (negative is warmer, positive brighter) |
EQ preset to match the Harman target
Set a preamp of -6.5 dB, then add these filters in any parametric equalizer (Wavelet, Equalizer APO, Peace, or a player with parametric EQ). Calculated by AutoEQ from its measured frequency response.
| Filter | Frequency | Gain | Q |
|---|---|---|---|
| Low shelf | 105 Hz | +8.7 dB | 0.70 |
| Peak | 58 Hz | -6.7 dB | 0.39 |
| Peak | 7,366 Hz | +4.8 dB | 0.84 |
| Peak | 2,185 Hz | -3.8 dB | 1.50 |
| Peak | 5,792 Hz | +2.4 dB | 2.90 |
| High shelf | 10,000 Hz | +3.7 dB | 0.70 |
| Peak | 821 Hz | +1.1 dB | 1.20 |
| Peak | 1,358 Hz | -1.0 dB | 2.21 |
| Peak | 207 Hz | -0.3 dB | 1.05 |
| Peak | 503 Hz | +0.3 dB | 1.77 |
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons