Short answer: the ND X12. Both are rated 3.6/5 for sound quality (#735 and #725 of 1291 in-ear headphones), and the ND X12 costs $62.99 against $69.99 for the NF Audio NA3, so with nothing between them on sound quality, price settles it.
Why pick the ND X12: A budget hybrid with one dynamic driver, five balanced armatures and three tuning settings. The tradeoff: Treble sits about 3.2 dB above target, so it can sound bright.
The case for the NF Audio NA3: A single dynamic IEM with a dual cavity design. The catch: A 2.33 dB spread from the target shows peaks and dips that better tuned sets avoid.
Buy the ND X12. Both are rated the same for sound quality, and it costs $7 less than the NF Audio NA3.
Looking for alternatives? See the complete Headphones rankings.
A budget hybrid with one dynamic driver, five balanced armatures and three tuning settings.
Amazon $62.99 eBay
A single dynamic IEM with a dual cavity design.
Shenzhenaudio $69.99 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
| ND X12 | NF Audio NA3 | |
|---|---|---|
| Price | $62.99 | $69.99 |
| Ranked | #735 of 1291 in In-Ear Headphones | #725 of 1291 in In-Ear Headphones |
| Form Factor | In-ear | In-ear |
| Back | Closed | Closed |
| Connection | Wired | Wired |
| Driver Type | Hybrid | Dynamic |
| Drivers | 1 x dynamic + 5 x balanced armature | 1 x dynamic (dual cavity) |
| Harman Preference Score | 69 (median of 6 squig.link measurements, calibrated to AutoEQ) | 69 (median of 3 squig.link measurements, calibrated to AutoEQ) |
| Deviation From Target | 2.12 dB standard deviation | 2.33 dB standard deviation |
| Tonal Tilt | +0.61 (negative is warmer, positive brighter) | -0.48 (negative is warmer, positive brighter) |
| Sub-bass Extension | Within 6 dB of target down to 20 Hz (+0.0 dB at 30 Hz) | Within 6 dB of target down to 20 Hz (-0.4 dB at 30 Hz) |
| Impedance | - | 32 ohms |
| Sensitivity | - | 105 dB |
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 ND X12 from audioamigo, jaytiss, obodio, practiphile, pw and riz; the NF Audio NA3 from arn, ianfann, musicafe and vortexreviews, all via squig.link.
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