KZ Duet VS CCZ Harmony
IEM Comparison: Expert & Community Scores Side-by-Side
KZ Duet and CCZ Harmony are in-ear monitors. KZ Duet costs $30 while CCZ Harmony costs $27. KZ Duet is $3 more expensive. KZ Duet holds a slight 0.3-point edge in reviewer scores (6.4 vs 6.2). KZ Duet has slightly better mids with a 0.4-point edge, KZ Duet has significantly better dynamics with a 1.1-point edge, KZ Duet has better soundstage with a 0.7-point edge, KZ Duet has significantly better details with a 1.6-point edge and KZ Duet has significantly better imaging with a 1.7-point edge.
Insights
| Metric | KZ Duet | CCZ Harmony |
|---|---|---|
| Bass | 6.5 | 6.6 |
| Mids | 5.9 | 5.5 |
| Treble | 6 | 5.8 |
| Details | 7.1 | 5.6 |
| Soundstage | 6.2 | 5.5 |
| Imaging | 7.3 | 5.7 |
| Dynamics | 6.9 | 5.8 |
| Tonality | 5.9 | 5.8 |
| Technicalities | 6.1 | 5.8 |
KZ Duet Aggregated Review Score
Average Reviewer Scores
Average Reviewer Score:
6.4Mixed to Positive
CCZ Harmony Aggregated Review Score
Average Reviewer Scores
Average Reviewer Score:
6.2Mixed to Positive
Reviews Comparison
KZ Duet reviewed by Paul Wasabii
6.8
* Score computed by IEMRanking.com
Youtube Video Summary
KZ Duet pairs a 10 mm driver with an 8 mm unit in an earbud form factor, plus an in-ear sleeve that improves seal and isolation. The result is a dual feast of music and gaming: fuller low end from the big driver and Libra X-style clarity up top. It scales with a better source, while the cheap DSP dongle adds usable presets, making the package practical and comfortable.
Bass is tight and fast rather than rumbly, trading sub-bass slam for cleanliness that helps imaging. The mids carry some warmth to ~300 Hz and then tilt toward a sharper, BA-like clarity that favors voices and positional cues. Treble is boosted for energy but kept non-peaky, yielding a fun V-lean that suits EDM and shooters alike. Stage projects big, with crisp edges and stable placement; overall balance feels more polished than recent KZ gaming-centric releases.
Paul Wasabii Youtube Channel
Buy KZ Duet on Linsoul
Ad
Price: $27
Buy KZ Duet on Linsoul
CCZ Harmony reviewed by Paul Wasabii
5.8
* Score computed by IEMRanking.com
Youtube Video Summary
CCZ Harmony is a $26 1+1 hybrid that looks slick with its faceted faceplate and rubberized wing, but the stock cable is flimsy and tangle-prone. The tuning is a throwback: a very heavy bass shelf (Rosefinch-like) that runs into the mids, with the balanced armature pushed forward to keep vocals on top. Upper mids around the ~5k region are emphasized, which can turn edgy at volume despite the huge low end. The result is exactly what the graph promises: lots of bass with vocals on top, fun for short bursts but not ideal for long sessions.
Genre fit matters: EDM fares better when energy spreads higher, yet the old-school shelf that bulges both sub-bass and mid-bass softens impact and thickens the mids. Treble extension exists but is often masked by the low end; separation from the BA is only marginal and the soundstage sits in-head. For bassheads who want forward vocals at a budget price it can be entertaining, but those seeking balance, dynamics, or technical finesse will find it limited.
Paul Wasabii Youtube Channel
Buy CCZ Harmony on Aliexpress
Ad
Price: $19
Buy CCZ Harmony on Aliexpress
KZ Duet (more reviews)
KZ Duet reviewed by Jaytiss
6
Reviewer Score
Jaytiss Youtube Channel
CCZ Harmony (more reviews)
CCZ Harmony reviewed by Web Search
6.5
Reviewer Score
The CCZ Harmony (BC01 Pro) is an entry-level hybrid using a 1DD+1BA configuration (10 mm PET dynamic + custom BA), rated 16 Ω/105 dB, and housed behind a zinc-alloy faceplate. Street pricing sits around $26.99, placing it firmly in the ultra-budget category. Specs and materials are consistent across listings and product pages.
Tonal balance is broadly V-shaped: a sub-bass-biased shelf provides weight, while a noticeable dip around 700–800 Hz recesses lower mids before the BA adds presence from ~1 kHz. This yields punchy low-end for EDM and pop, clear enough upper-mids for vocals, but a slightly muffled midrange on dense mixes; treble is smooth rather than biting. These traits are documented in product measurements/impressions and align with the published specs.
Technicalities are competitive for the price: it’s easy to drive and offers acceptable imaging and stage for casual listening and budget gaming, according to community impressions. Fit/isolation are decent thanks to the shell geometry and metal nozzle, but micro-detail and macrodynamics remain average versus higher-tier sets. Overall value is solid in the sub-$30 bracket, with strengths in bass impact and comfort offset by recessed lower mids and only modest resolution.
KZ Duet Details
Driver Configuration:
Tuning Type: n/a
Brand: KZ Top KZ IEMs
Price (Msrp): $30
Support our free service! Buying through our affiliate links costs you nothing extra:
CCZ Harmony Details
Driver Configuration: 1DD+1BA
Tuning Type: V-Shaped
Price (Msrp): $26.99
Support our free service! Buying through our affiliate links costs you nothing extra:
KZ Duet User Review Score
Average User Scores
Average User Score: n/a
Based on 0 user reviews
No user reviews yet. Be the first one who writes a review!
CCZ Harmony User Review Score
Average User Scores
Average User Score: n/a
Based on 0 user reviews
No user reviews yet. Be the first one who writes a review!
KZ Duet 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
BCCZ Harmony Gaming Score
Gaming Score & Grade
- The gaming score is prioritizing technical capabilities of the IEM (Separation, Layering, Soundstage) and good value.
Gaming Score
5.8Gaming Grade
B-KZ Duet Scorings
Average Technical & Tuning Grades
Average Tunign Grade
B-- Tonality is generally agreeable, though a few bumps remind you of its limits. Certain tracks spotlight its tonal quirks.
Average Technical Grade
B- An honest, middle-of-the-road performance preserves structure without chasing micro-detail. It's respectable for everyday listening sessions.
CCZ Harmony Scorings
Average Technical & Tuning Grades
Average Tunign Grade
B-- Expect a friendly tonal balance that could use polish but remains inviting. Great for casual listening, less so for purists.
Average Technical Grade
B-- Technical ability is serviceable, keeping basic detail intact across simpler tracks. It keeps up with acoustic tracks without much fuss.
KZ Duet User Reviews
"This is an example review"
Pros
- Example pro 1
- Example pro 2
Cons
- Example con 1
- Example con 2
Share your experience and build your personal ranking list.
You need to be signed in to write your own reviewCCZ Harmony User Reviews
"This is an example review"
Pros
- Example pro 1
- Example pro 2
Cons
- Example con 1
- Example con 2
Share your experience and build your personal ranking list.
You need to be signed in to write your own reviewFind your next IEM:
IEM Finder Quiz
newIEM Comparison Tool
newVS