Short answer: the Myer Audio CKLVX D62. It ranks #101 of 1291 in-ear headphones by sound quality, rated 4.5/5, at $399; the HeartField CU8 ranks #173, rated 4.4/5, at $396. With prices this close, go by the sound-quality ranking rather than the cost.
What the Myer Audio CKLVX D62 does well: Nine hobbyist measurements on squig.link score it 79.6 for preference with a near neutral tilt and 1.59 dB of deviation. The tradeoff: Presence sits about 2.8 dB low with a 5.5 dB dip near 5.4 kHz, while a 4.8 dB peak follows at 8.1 kHz, so the treble swings between recessed vocals and occasional sibilant edge.
What the HeartField CU8 does well: Four balanced armatures produce one of the smoothest responses at this level, deviating only 1.4 dB on average from target in squig.link hobbyist measurements, for a preference score of 78. The tradeoff: Treble is reserved, with presence about 2 dB down, a 4 dB dip near 9.5 kHz and air 3.3 dB below target, so cymbals and vocal sparkle sound a little muted.
Buy the Myer Audio CKLVX D62. It is rated higher for sound quality, and the $3 saving on the HeartField CU8 is not enough to make up the difference.
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Nine hobbyist measurements on squig.link score it 79.6 for preference with a near neutral tilt and 1.59 dB of deviation.
Amazon $399.00 eBay
Four balanced armatures produce one of the smoothest responses at this level, deviating only 1.4 dB on average from target in squig.link hobbyist measurements, for a preference score of 78.
Linsoul $396.00 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
| Myer Audio CKLVX D62 | HeartField CU8 | |
|---|---|---|
| Price | $399.00 | $396.00 |
| Ranked | #101 of 1291 in In-Ear Headphones | #173 of 1291 in In-Ear Headphones |
| Form Factor | In-ear | In-ear |
| Back | Closed | Closed |
| Harman Preference Score | 80 (median of 11 squig.link measurements, calibrated to AutoEQ) | 78 (median of 6 squig.link measurements, calibrated to AutoEQ) |
| Deviation From Target | 1.55 dB standard deviation | 1.39 dB standard deviation |
| Tonal Tilt | -0.09 (negative is warmer, positive brighter) | -0.62 (negative is warmer, positive brighter) |
| Sub-bass Extension | Within 6 dB of target down to 20 Hz (-0.9 dB at 30 Hz) | Within 6 dB of target down to 20 Hz (+2.2 dB at 30 Hz) |
| Connection | Wired | Wired |
| Driver Type | Hybrid (2 dynamic + 6 balanced armature) | Balanced armature |
| Drivers | 1 x 10mm dynamic + 1 x 8mm dynamic + 6 x balanced armature | 4 x balanced armature |
| Impedance | - | 17 ohms |
| Sensitivity | - | 108 dB |
| Frequency Response | - | 10Hz - 20kHz (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 Myer Audio CKLVX D62 from atechreviews, audioamigo, boizoff, hobbytalk, jaytiss, kazi, koi, practiphile, soundcheck39, superreview and tonedeafmonk; the HeartField CU8 from audioamigo, hbb, jaytiss, pw, soundcheck39 and timmyv, all via squig.link.
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