Short answer: the KZ PRX. It ranks #645 of 1291 in-ear headphones by sound quality, rated 3.7/5, at $71.99; the TRN VX ranks #769, rated 3.6/5, and costs $72.99, so there is little reason to consider the other one.
What the KZ PRX does well: The median of 14 hobbyist measurements gives it a solid Harman preference score of 70 with a 2.10 dB spread, and its mids sit within about 0.6 dB of target, so vocals and instruments sound natural. Watch for: A 6.1 dB peak near 8.4 kHz can make cymbals and sibilance sound sharp.
The case for the TRN VX: A budget hybrid with one dynamic driver and six balanced armatures. The tradeoff: Bass sits about 2.2 dB below target, so it sounds lean.
Buy the KZ PRX. It is rated higher for sound quality than the TRN VX and costs less, which makes it the one to get unless you need something the other one does better.
Looking for alternatives? See the complete Headphones rankings.
The median of 14 hobbyist measurements gives it a solid Harman preference score of 70 with a 2.10 dB spread, and its mids sit within about 0.6 dB of target, so vocals and instruments sound natural.
Amazon $71.99 eBay
A budget hybrid with one dynamic driver and six balanced armatures.
Shenzhenaudio $72.99 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
| KZ PRX | TRN VX | |
|---|---|---|
| Price | $71.99 | $72.99 |
| Ranked | #645 of 1291 in In-Ear Headphones | #769 of 1291 in In-Ear Headphones |
| Form Factor | In-ear | In-ear |
| Back | Closed | Closed |
| Connection | Wired | Wired |
| Driver Type | Planar | Hybrid |
| Drivers | 1 x planar magnetic | 1 x 10mm dynamic + 6 x balanced armature |
| Impedance | 15 ohms | 22 ohms |
| Frequency Response | 20Hz - 40kHz (Manufacturer specified) | - |
| Harman Preference Score | 70 (median of 14 squig.link measurements, calibrated to AutoEQ) | 68 (median of 6 squig.link measurements, calibrated to AutoEQ) |
| Deviation From Target | 2.10 dB standard deviation | 2.38 dB standard deviation |
| Tonal Tilt | -0.66 (negative is warmer, positive brighter) | +0.52 (negative is warmer, positive brighter) |
| Sub-bass Extension | Within 6 dB of target down to 20 Hz (+2.2 dB at 30 Hz) | Within 6 dB of target down to 20 Hz (-2.3 dB at 30 Hz) |
| Sensitivity | - | 107 dB/mW |
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 KZ PRX from aftersound, audioamigo, breampike, enemyspider, eplv, jaytiss, lown-fi, obodio, pw, sl0the, soundcheck39, soundignity, treblewellxtended and vortexreviews; the TRN VX from bedrock, bryaudioreviews, eplv, melatonin, musicafe and pw, all via squig.link.
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