Wired IEMs
CrinEar Reference
86Outstanding
$350
Full review dataCrinEar Reference vs EPZ K9: which should you buy?
On aggregated review scores the CrinEar Reference comes out ahead with a HearWiki score of 86. The full breakdown - sub-scores, specs and what reviewers actually said - is below.
Our pick: CrinEar Reference - Outstanding overall at around $350.
Wired IEMs
EPZ K9
72Good
$350
Full review dataScore breakdown
Each axis is a 0–10 blend of what reviewers scored, not a lab measurement.
CrinEar Reference leads on 3 of 4 measures.
- CrinEar Reference
- EPZ K9
HearWiki score
86
72
Sound
9.1
7.6
Value
8.9
6.9
Price (USD)
$350
$350
Generation & platform
The scores rank quality. This is the other question: is the newer one actually newer technology, or the same platform in a new shell?
Same generation
CrinEar Reference (2026) against EPZ K9 (2025). These are the same generation of hardware - nothing in the radio, the codecs or the noise cancelling separates them. Nothing separates them on convenience features either, so the choice comes down to tuning and price.
- Reference20261 yr newer
- K92025
Specifications
ReferenceK9
- Type
- Wired IEMs
- Wired IEMs
- Price (USD)
- $350
- $350
- HearWiki score
- 86
- 72
- Released
- 2026
- 2025
- Availability
- Sold new
- Sold new
- Driver
- 2DD + 3BA hybrid
- 1DD + 8BA hybrid
- Driver type
- hybrid
- hybrid
- Driver configuration
- 2DD + 3BA
- 1DD + 8BA
- Driver size
- 10 mm
- 8 mm
- Drivers per side
- 5
- 9
- Impedance
- 16 Ω
- -
- Sensitivity
- 104 dB/mW
- -
- Active noise cancelling
- -
- No
- Detachable cable
- Yes
- -
- Connector
- 4.4 mm balanced
- 2-pin 0.78 mm
What reviewers said
CrinEar Reference
The CrinEar Reference is a wired in-ear monitor with a hybrid 2DD + 3BA driver setup, offering a balanced and detailed sound signature. It features a detachable 4.4mm balanced cable and relies on a tight seal for passive isolation, making it a strong choice for critical listening at its price point.
- Pro:Hybrid driver configuration delivers rich, layered sound
- Pro:Detachable 4.4mm balanced cable for flexible connectivity
- Pro:Good passive isolation from proper eartip seal
- Con:No active noise cancellation, so external noise isn't fully blocked
- Con:Requires a balanced source to fully utilize the 4.4mm connector
- Con:Fit may be finicky for some users to achieve optimal seal
EPZ K9
The EPZ K9 is a wired hybrid IEM that pairs a single dynamic driver with eight balanced armatures to deliver a smooth, warm, and musical signature. It offers strong detail retrieval, a wide soundstage, and a versatile balance that suits a broad range of genres, all wrapped in a distinctive design with quality accessories. While its treble sparkle and spatial precision aren't class-leading, it stands out as a refined, coherent listen for the price.
- Pro:Warm, balanced, and highly versatile tuning
- Pro:Strong detail and airy presentation with good bass impact
- Pro:Wide staging and lush mids
- Con:Treble sparkle is not its strongest trait
- Con:Spatial cleanliness could be better
- Con:May not suit listeners seeking aggressive or bright signatures
Summaries are AI-condensed and paraphrased from published reviews and specs - not original hands-on testing. More on our method.
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