Short answer: a tie on sound quality. Both are rated 4.0/5 (#381 and #411 of 1291 in-ear headphones) at nearly the same price ($94.99 vs $99), so choose on features and fit.
The case for the Juzear Defiant: One dynamic driver and three balanced armatures keep bass almost exactly on target, within 0.5 dB from 20 to 200 Hz in squig.link hobbyist measurements, so low end sounds clean and full without bloat. The tradeoff: Presence around 3 to 6 kHz falls about 4.4 dB below target with a 6.4 dB dip near 6 kHz, which pushes vocals and guitar attack back and makes the sound feel veiled in the center.
Why pick the NF Audio NM2: The median of 14 hobbyist measurements gives it a solid Harman preference score of 74 with a 2.18 dB spread, and its mids sit within about 0.8 dB of target, so vocals and instruments sound natural. The tradeoff: A 6.2 dB peak near 8.2 kHz can make cymbals and sibilance sound sharp.
Buy the Juzear Defiant or the NF Audio NM2 on features: they are rated the same for sound quality at close to the same price.
Looking for alternatives? See the complete Headphones rankings.
One dynamic driver and three balanced armatures keep bass almost exactly on target, within 0.5 dB from 20 to 200 Hz in squig.link hobbyist measurements, so low end sounds clean and full without bloat.
Amazon $94.99 eBay
The median of 14 hobbyist measurements gives it a solid Harman preference score of 74 with a 2.18 dB spread, and its mids sit within about 0.8 dB of target, so vocals and instruments sound natural.
Shenzhenaudio $99.00 eBayPrices on this page were last checked October 16, 2026 at 5:46 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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Specifications Side By Side
| Juzear Defiant | NF Audio NM2 | |
|---|---|---|
| Price | $94.99 | $99.00 |
| Ranked | #381 of 1291 in In-Ear Headphones | #411 of 1291 in In-Ear Headphones |
| Form Factor | In-ear | In-ear |
| Back | Closed | Closed |
| Harman Preference Score | 74 (median of 22 squig.link measurements, calibrated to AutoEQ) | 74 (median of 14 squig.link measurements, calibrated to AutoEQ) |
| Deviation From Target | 1.80 dB standard deviation | 2.18 dB standard deviation |
| Tonal Tilt | -0.67 (negative is warmer, positive brighter) | -0.00 (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 (-1.9 dB at 30 Hz) |
| Connection | Wired | Wired |
| Driver Type | Hybrid (1 dynamic + 3 balanced armature) | Dynamic |
| Drivers | 1 x dynamic + 3 x balanced armature | 1 x dynamic (dual cavity) |
| Impedance | 32 ohms | 18 ohms |
| Sensitivity | 109 dB | 108 dB/mW |
| Frequency Response | 20Hz - 20kHz (Manufacturer specified) | 10Hz - 40kHz (Manufacturer specified) |
Frequency Response Compared
Both headphones’ measurements overlaid on the Harman target. Above the target sounds louder in that range, below it quieter. Each curve is the median of several independent measurements, shifted so its 500 Hz to 2 kHz average sits at 0 dB, so only the tuning is compared.
Measurement data: the Juzear Defiant from aden, aftersound, awsmdanny, bassaudio, bedrock, boizoff, doltonius, ducbloke, enemyspider, eplv, fernandagunsan, flare, hbb, iemocean, kuping-sensi, lumerion, practiphile, precog, soundcheck39, timmyv, tonedeafmonk and treblewellxtended; the NF Audio NM2 from achoreviews, aftersound, atechreviews, bukanaudiophile, cqtek, hu-fi, ianfann, kazi, melatonin, mmagtech, pw, superreview, tgx78 and vortexreviews, all via squig.link.
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