Overview

CVJ Yukimi is a single dynamic-driver in-ear monitor developed in collaboration with Angelears. It pairs a 10 mm carbonized-crystal diaphragm driver with CNC-machined aluminum alloy shells and a detachable 0.78 mm 2-pin cable; terminations are offered in 3.5 mm and 4.4 mm. Published specs list 22 Ω impedance and 108 ± 2 dB sensitivity, and some retailer listings note a 556-core silver-plated copper cable. The list price at a major retailer is 209 USD. [1][2][4][6]

Scientific Validity

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As of the review date, we did not find credible third-party laboratory measurements (frequency response/THD/IMD) for Yukimi. Manufacturer-published specs include a nominal 10 Hz–40 kHz bandwidth (catalog), 22 Ω impedance, and 108 ± 2 dB sensitivity. These numbers do not reveal on-ear frequency response deviation or distortion behavior, which are decisive for fidelity judgments. Accordingly, this score remains a provisional midpoint pending independent FR/THD data; it will be updated when reliable measurements become available. [1][6]

Technology Level

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The design—carbonized-crystal diaphragm DD, CNC aluminum shells, horn-shaped nozzle, and an included 556-core SPC cable—is solid contemporary engineering. Listings also mention a four-channel electronic/physical tuning scheme. While competent, none of these elements demonstrate clear, field-leading innovation (e.g., published patents/white papers or breakthrough measured performance), so we rate the technology implementation slightly above industry average. [1][2][4]

Cost-Performance

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Market price for Yukimi is 209 USD. The cheapest equivalent-or-better option we identify is Kiwi Ears Cadenza at 34.99 USD: single 10 mm DD, comparable user-visible functionality (detachable 2-pin cable) and, critically, third-party frequency-response measurements that closely follow IEF/Harman targets (neutral-leaning response). With Yukimi lacking independent FR/THD data, we provisionally treat Cadenza as equal-or-better on fidelity grounds. 34.99 USD ÷ 209 USD = 0.167, rounded to 0.2 by rule. [1][3][5]

Reliability & Support

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No independent failure-rate or MTBF data were found for Yukimi. CVJ’s distribution via major retailers suggests basic warranty coverage typical for emerging Chi-Fi brands, but the limited public track record and absence of long-term reliability studies keep this at an average score.

Rationality of Design Philosophy

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A premium single-DD IEM priced at 209 USD without publicly available third-party measurements is hard to justify when cheaper models with published neutral-leaning FR exist. From a measurement-first perspective aimed at transparent results, the development and disclosure approach appears insufficiently aligned with scientifically verified fidelity improvements.

Advice

If you specifically want CVJ’s industrial design or this collaboration model, ensure fit and ergonomics meet your needs. For measurement-oriented buyers seeking neutral, transparent reproduction at minimum cost, Kiwi Ears Cadenza is the rational baseline to audition first given its documented FR behavior and substantially lower price. Revisit Yukimi if credible third-party measurements demonstrating transparent on-ear FR and low distortion are later published.

References

[1] HiFiGo, “CVJ YUKIMI New-Gen 10 mm Dynamic Driver In-Ear Earphone,” https://hifigo.com/products/cvj-yukimi, accessed 2025.8.18

[2] TheHiFiCat, “CVJ YUKIMI,” https://thehificat.com/products/cvj-yukimi, accessed 2025.8.18

[3] Squiglink (Paul Wasabii), “Kiwi Ears Cadenza vs IEF target (FR database),” https://pw.squig.link/?share=IEF_Comp_Target%2CKiwiears_Cadenza, accessed 2025.8.18

[4] Amazon, “CVJ x ANGELEARS Yukimi… Featuring 4-Channel Tuning,” https://www.amazon.com/dp/B0DG2X7W8Y, accessed 2025.8.18

[5] Linsoul, “Kiwi Ears Cadenza,” https://www.linsoul.com/products/kiwi-ears-cadenza, accessed 2025.8.18

[6] Geekwills, “CVJ YUKIMI… Specifications (10 Hz–40 kHz, 22 Ω, 108 ± 2 dB),” https://www.geekwills.com/cvj-yukimi.html, accessed 2025.8.18

(2025.8.19)