Short answer: the EPZ 550. It ranks #279 of 971 in-ear headphones by sound quality (rated 4.1/5) at $519.99 and is still sold new; the EPZ 530 ranks #554 (rated 3.5/5) and is discontinued, so it is only an option used.
The EPZ 550 is the better-sounding choice. The median of 7 hobbyist measurements gives it a very good Harman preference score of 75 with a 1.85 dB spread. The catch: Presence sits about 4.5 dB low with a 6.1 dB dip near 6.1 kHz, so vocals and instruments lose some bite.
What the EPZ 530 does well: Five armatures tuned close to the Harman target (score 68 across nineteen measurements), with a modular cable for every common plug. Watch for: Discontinued, so it is mainly found used.
Buy the EPZ 550. It is rated higher for sound quality and still sold new, while the EPZ 530 is discontinued.
Want more options? Browse the full Headphones rankings.
Specifications Side By Side
| EPZ 550 | EPZ 530 | |
|---|---|---|
| Price | $519.99 | $700 Discontinued |
| Ranked | #279 of 971 in In-Ear Headphones | #554 of 971 in In-Ear Headphones |
| Form Factor | In-ear | In-ear |
| Back | Closed | Closed |
| Harman Preference Score | 75 (median of 7 squig.link measurements, calibrated to AutoEQ) | 68 (median of 19 squig.link measurements, calibrated to AutoEQ) |
| Deviation From Target | 1.85 dB standard deviation | 2.44 dB standard deviation |
| Tonal Tilt | +0.07 (negative is warmer, positive brighter) | -0.37 (negative is warmer, positive brighter) |
| Sub-bass Extension | Within 6 dB of target down to 20 Hz (-4.3 dB at 30 Hz) | Within 6 dB of target down to 20 Hz (-1.4 dB at 30 Hz) |
| Connection | Wired | Wired |
| Driver Type | Balanced armature | Balanced armature |
| Drivers | 5 x balanced armature | 5 x balanced armature |
| Sensitivity | 105 dB | - |
| Frequency Response | 20Hz - 20kHz (Manufacturer specified) | - |
| Built-in Microphone | No | - |
| Impedance | - | 32 ohms |
Related Headphone Comparisons
How EPZ 550 compares with other leading options:
- EPZ 550 vs EPZ G20
- EPZ 550 vs EPZ G10
- EPZ 550 vs EPZ G30
- Moritz Dragon vs EPZ 550
- EPZ 550 vs Oriolus Isabellae
Prices on this page were last checked October 14, 2026 at 2:38 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 550: $519.99 Amazon $519.99 eBay
Pros: The median of 7 hobbyist measurements gives it a very good Harman preference score of 75 with a 1.85 dB spread. It uses 5 x balanced armature.
Cons: Presence sits about 4.5 dB low with a 6.1 dB dip near 6.1 kHz, so vocals and instruments lose some bite. Sub-bass is 4.3 dB short at 30 Hz, so deep bass lacks rumble.
Full EPZ 550 review and specifications →
| Released | Mar 2026 (7 months ago) |
|---|---|
| Back | Closed |
| Built-in Microphone | No |
| Connection | Wired |
| Deviation From Target | 1.85 dB standard deviation |
| Driver Type | Balanced armature |
| Drivers | 5 x balanced armature |
| Form Factor | In-ear |
| Frequency Response | 20Hz - 20kHz (Manufacturer specified) |
| Harman Preference Score | 75 (median of 7 squig.link measurements, calibrated to AutoEQ) |
| Sensitivity | 105 dB |
| Sub-bass Extension | Within 6 dB of target down to 20 Hz (-4.3 dB at 30 Hz) |
| Tonal Tilt | +0.07 (negative is warmer, positive brighter) |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
EPZ 530: $700 Discontinued eBay
Pros: Five armatures tuned close to the Harman target (score 68 across nineteen measurements), with a modular cable for every common plug.
Cons: Discontinued, so it is mainly found used. Its 2.44 dB spread from the target is wider than the best-measuring IEMs at its price.
Full EPZ 530 review and specifications →
| Back | Closed |
|---|---|
| Connection | Wired |
| Deviation From Target | 2.44 dB standard deviation |
| Driver Type | Balanced armature |
| Drivers | 5 x balanced armature |
| Form Factor | In-ear |
| Harman Preference Score | 68 (median of 19 squig.link measurements, calibrated to AutoEQ) |
| Impedance | 32 ohms |
| Sub-bass Extension | Within 6 dB of target down to 20 Hz (-1.4 dB at 30 Hz) |
| Tonal Tilt | -0.37 (negative is warmer, positive brighter) |
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons