Short answer: the Ooopusx OP24. It ranks #97 of 1291 in-ear headphones by sound quality, rated 4.5/5, at $49.99; the TRN Medusa ranks #135, rated 4.4/5, and costs $53.99, so there is not much of a tradeoff to weigh.
Why pick the Ooopusx OP24: Its six-driver hybrid scores 80.0 across 11 hobbyist measurements on squig.link, and sub-bass and bass both sit nearly 2 dB above target, giving electronic and hip hop tracks a full, rumbling low end. The tradeoff: A 5.8 dB peak near 8.1 kHz can make cymbals and esses sound splashy on bright recordings.
The case for the TRN Medusa: Thirteen hobbyist measurements on squig.link put the Medusa at a preference score of 78.7, with a single 12mm dynamic driver that holds bass almost exactly on target down to 30 Hz. Watch for: The air band runs about 6.5 dB above target and peaks 8.6 dB near 11.9 kHz, so it can sound hissy and fatiguing with bright mixes or at high volume.
Buy the Ooopusx OP24. It is rated higher for sound quality than the TRN Medusa and costs less, which makes it the one to get unless you need something the other one does better.
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Its six-driver hybrid scores 80.0 across 11 hobbyist measurements on squig.link, and sub-bass and bass both sit nearly 2 dB above target, giving electronic and hip hop tracks a full, rumbling low end.
Amazon $49.99 eBay
Thirteen hobbyist measurements on squig.link put the Medusa at a preference score of 78.7, with a single 12mm dynamic driver that holds bass almost exactly on target down to 30 Hz.
Amazon $53.99 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
| Ooopusx OP24 | TRN Medusa | |
|---|---|---|
| Price | $49.99 | $53.99 |
| Ranked | #97 of 1291 in In-Ear Headphones | #135 of 1291 in In-Ear Headphones |
| Form Factor | In-ear | In-ear |
| Back | Closed | Closed |
| Harman Preference Score | 80 (median of 13 squig.link measurements, calibrated to AutoEQ) | 79 (median of 13 squig.link measurements, calibrated to AutoEQ) |
| Deviation From Target | 1.44 dB standard deviation | 1.55 dB standard deviation |
| Tonal Tilt | -0.32 (negative is warmer, positive brighter) | +0.10 (negative is warmer, positive brighter) |
| Sub-bass Extension | Within 6 dB of target down to 20 Hz (+1.3 dB at 30 Hz) | Within 6 dB of target down to 20 Hz (-0.2 dB at 30 Hz) |
| Connection | Wired | Wired |
| Driver Type | Hybrid (2 dynamic + 4 balanced armature) | Dynamic |
| Drivers | 2 x dynamic + 4 x balanced armature | 1 x 12mm dynamic |
| Impedance | 15 ohms (27 ohms in mode 2) | 30 ohms |
| Sensitivity | 127 dB/Vrms | 108 dB |
| Frequency Response | 10Hz - 40kHz (Manufacturer specified) | 20Hz - 20kHz (Manufacturer specified) |
| Weight | - | 0 lbs (5.1 g) per earbud |
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 Ooopusx OP24 from audioamigo, bedrock, boizoff, csi-zone, digaoreviews, enemyspider, hu-fi, jaytiss, kazi, practiphile, silicagel, soundignity and superreview; the TRN Medusa from arn, atechreviews, audioamigo, csi-zone, jaytiss, koi, musicafe, practiphile, pw, soundcheck39, soundignity, tonedeafmonk and vortexreviews, all via squig.link.
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