CCA HYDRO and Dunu Kima Classic use 2DD+8BA and 1DD driver setups respectively. CCA HYDRO costs $120 while Dunu Kima Classic costs $109. CCA HYDRO is $11 more expensive. CCA HYDRO holds a decisive 1.3-point edge in reviewer scores (7.3 vs 6).
Insights
Metric | CCA HYDRO | Dunu Kima Classic |
---|---|---|
Mids | 6 | 6 |
Treble | 5 | 6 |
Soundstage | 6 | 6 |
Dynamics | 7 | 6 |
Tonality | 6.8 | 6 |
Technicalities | 6.3 | 6 |
CCA HYDRO Aggregated Review Score
Average Reviewer Scores
Average Reviewer Score:
7.3Generally Favorable
Dunu Kima Classic Aggregated Review Score
Average Reviewer Scores
Average Reviewer Score:
6Mixed to Positive
Reviews Comparison
CCA HYDRO reviewed by Head-Fi.org
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Dunu Kima Classic reviewed by Head-Fi.org
CCA HYDRO (more reviews)
CCA HYDRO reviewed by Jaytiss
Youtube Video Summary
Build & fit hit above the price: a sleek, glossy shell that’s a bit of a fingerprint magnet but sits securely with a small nozzle and generally comfy ergonomics; only the backside contour may trip up a few ears. The stock QDC-style cable feels plush and durable—decidedly “world-class” at this tier. No case in the box, but that’s a minor nit when the overall presentation feels A1.
On the rig, the Hydro shows tight channel matching and a versatile tuning via dip switches. The curve echoes heavy-hitters—think a tasteful 2.5–3 kHz rise, a dip after, and robust sub-bass with real treble extension. Comparisons point toward Monarch/Annihilator territory for tonality cues, while still keeping its own flavor: weighty bass and sparkling air without mid-bass bloat. The result is genre-agnostic confidence—female/male vocals, instrumentals, metal, R&B, gaming, even movies—all come through clean, lively, and engaging.
The “problem”? Not the sound—sonically it’s a standout—but the brand baggage some attach to KZ/CCA. Set that aside and Hydro reads like a reckless trend-setter: a double-DD + 8BA hybrid that punches way up, credibly sparring with sets in the $500–$600 bracket while costing far less. With its fit, tuning, and value—plus that excellent cable—this is an easy recommendation for anyone chasing a musical, detailed, and switchable all-rounder.
Jaytiss Youtube Channel
CCA HYDRO reviewed by Jays Audio
Jays Audio Youtube Channel
Dunu Kima Classic (more reviews)
Dunu Kima Classic reviewed by Audionotions
Dunu Kima Classic reviewed by Z-Reviews
CCA HYDRO Details
Driver Configuration: 2DD+8BA
Tuning Type: V-Shaped
Brand: CCA Top CCA IEMs
Price (Msrp): $120
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Dunu Kima Classic Details
Driver Configuration: 1DD
Tuning Type: n/a
Brand: DUNU Top DUNU IEMs
Price (Msrp): $109
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CCA HYDRO User Review Score
Average User Scores
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Dunu Kima Classic User Review Score
Average User Scores
Average User Score: n/a
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CCA HYDRO Gaming Score

Gaming Score & Grade
- The gaming score is prioritizing technical capabilities of the IEM (Separation, Layering, Soundstage) and good value.
Gaming Score
6.4Gaming Grade
BDunu Kima Classic Gaming Score

Gaming Score & Grade
- The gaming score is prioritizing technical capabilities of the IEM (Separation, Layering, Soundstage) and good value.
Gaming Score
6Gaming Grade
BCCA HYDRO Scorings
Average Technical & Tuning Grades
Average Tunign Grade
B+- It sounds pleasant overall, with some uneven spots that hint at room for refinement. Vocals remain pleasant despite the imperfections.
Average Technical Grade
B- It offers a competent showing, maintaining cohesion on straightforward arrangements. Complex passages start to challenge it, but never derail the show.
Dunu Kima Classic Scorings
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