Short answer: the EPZ 550. It ranks #227 of 450 in-ear headphones by sound quality, rated 4.1/5, at $519.99; the Hisenior Mega5EST 7th Anniversary Edition ranks #249, rated 4.0/5, and costs $549, so there is little reason to consider the other one.
Buy the EPZ 550. It is rated higher for sound quality than the Hisenior Mega5EST 7th Anniversary Edition and costs less, which makes it the one to get unless you need something the other one does better.
Still deciding? The full Headphones rankings cover every ranked option.
Specifications Side By Side
| EPZ 550 | Hisenior Mega5EST 7th Anniversary Edition | |
|---|---|---|
| Price | $519.99 | $549.00 |
| Ranked | #227 of 450 in In-Ear Headphones | #249 of 450 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) | 74 (median of 4 squig.link measurements, calibrated to AutoEQ) |
| Deviation From Target | 1.85 dB standard deviation | 1.73 dB standard deviation |
| Tonal Tilt | +0.07 (negative is warmer, positive brighter) | -0.67 (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 (+0.0 dB at 30 Hz) |
| Connection | Wired | Wired |
| Driver Type | Balanced armature | Hybrid (1 dynamic + 2 balanced armature + 2 electrostatic) |
| Drivers | 5 x balanced armature | 1 x 10mm dynamic + 2 x balanced armature + 2 x electrostatic |
| Sensitivity | 105 dB | - |
| Frequency Response | 20Hz - 20kHz (Manufacturer specified) | - |
| Built-in Microphone | No | - |
Related Headphone Comparisons
More worthwhile head-to-heads for EPZ 550:
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- EPZ 550 vs Oriolus Isabellae
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 550: $519.99 Amazon eBay
Full EPZ 550 review and specifications →
| 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) |
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
Hisenior Mega5EST 7th Anniversary Edition: $549.00 Amazon eBay
Full Hisenior Mega5EST 7th Anniversary Edition review and specifications →
| Back | Closed |
|---|---|
| Connection | Wired |
| Deviation From Target | 1.73 dB standard deviation |
| Driver Type | Hybrid (1 dynamic + 2 balanced armature + 2 electrostatic) |
| Drivers | 1 x 10mm dynamic + 2 x balanced armature + 2 x electrostatic |
| Form Factor | In-ear |
| Harman Preference Score | 74 (median of 4 squig.link measurements, calibrated to AutoEQ) |
| Sub-bass Extension | Within 6 dB of target down to 20 Hz (+0.0 dB at 30 Hz) |
| Tonal Tilt | -0.67 (negative is warmer, positive brighter) |
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons