Short answer: the Technics EAH-AZ100, though neither ranks well in its class. It ranks #1115 of 1291 in-ear headphones by sound quality, rated 2.4/5, at $297.99; the Shure SE425 ranks #1171, rated 1.9/5, and costs $299, so there is not much of a tradeoff to weigh. Both are rated below 3.0/5 among the 1291 in-ear headphones, so if sound quality matters, consider the Truthear Nova instead, ranked #2 at $169.99.
The Technics EAH-AZ100 is the better-sounding pick. These true wireless earbuds offer active noise cancelling, Bluetooth 5.3 with LDAC and AAC, a claimed 10 hours of battery per charge and IPX4 splash resistance. Watch for: In two hobbyist measurements on squig.link it scores only 53.6 for Harman preference with a 3.2 dB deviation.
What the Shure SE425 does well: Two balanced armature drivers with a 22 ohm impedance and 109 dB/mW sensitivity, so it plays loud from a phone without an amplifier. The catch: A preference score of 48 in crinacle’s measurement places its tuning far from what most listeners prefer, so expect a clearly colored sound.
Buy the Technics EAH-AZ100. It is rated higher for sound quality than the Shure SE425 and costs less, so it is the default pick unless a specific strength of the other one matters more to you.
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These true wireless earbuds offer active noise cancelling, Bluetooth 5.3 with LDAC and AAC, a claimed 10 hours of battery per charge and IPX4 splash resistance.
Amazon $297.99 eBay
Two balanced armature drivers with a 22 ohm impedance and 109 dB/mW sensitivity, so it plays loud from a phone without an amplifier.
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Specifications Side By Side
| Technics EAH-AZ100 | Shure SE425 | |
|---|---|---|
| Price | $297.99 | $299.00 |
| Ranked | #1115 of 1291 in In-Ear Headphones | #1171 of 1291 in In-Ear Headphones |
| Form Factor | In-ear | In-ear |
| Back | Closed | Closed |
| Harman Preference Score | 54 (median of 2 squig.link measurements, calibrated to AutoEQ) | 48 (measured by crinacle, via AutoEQ) |
| Deviation From Target | 3.20 dB standard deviation | 4.17 dB standard deviation |
| Tonal Tilt | -1.30 (negative is warmer, positive brighter) | +0.59 (negative is warmer, positive brighter) |
| Sub-bass Extension | Within 6 dB of target down to 20 Hz (+2.3 dB at 30 Hz) | - |
| Connection | True wireless | Wired |
| Drivers | 1 x 10mm | 2 x balanced armature |
| Weight | 0 lbs (5.9 g) per earbud | - |
| Frequency Response | 20Hz - 40kHz (Manufacturer specified) | 20Hz - 19kHz (Manufacturer specified) |
| Active Noise Cancelling | Yes | - |
| Battery Life | 10 hours (Manufacturer specified) | - |
| Bluetooth Version | 5.3 | - |
| Bluetooth Codecs | SBC, AAC, LDAC | - |
| Built-in Microphone | Yes | - |
| IP Rating | IPX4 | - |
| Driver Type | - | Balanced armature |
| Impedance | - | 22 ohms |
| Sensitivity | - | 109 dB SPL/mW |
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