Wired IEMs
7Hz Eternal
43Weak
$250
Full review data7Hz Eternal vs CrinEar Reference: 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
CrinEar Reference
86Outstanding
$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.
- 7Hz Eternal
- CrinEar Reference
HearWiki score
43
86
Sound
5.5
9.1
Value
3.0
8.9
Price (USD)
$250
$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
The CrinEar Reference is 4 years newer, but it is 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. For 4 years between them, that is a thin return - treat this as a restyle rather than a new platform.
- Eternal2022
- Reference20264 yr newer
Specifications
EternalReference
- Type
- Wired IEMs
- Wired IEMs
- Price (USD)
- $250
- $350
- HearWiki score
- 43
- 86
- Released
- 2022
- 2026
- Availability
- Discontinued
- Sold new
- Driver
- 14.5 mm dynamic
- 2DD + 3BA hybrid
- Driver type
- dynamic
- hybrid
- Driver configuration
- -
- 2DD + 3BA
- Driver size
- 14.5 mm
- 10 mm
- Drivers per side
- -
- 5
- Impedance
- 30 Ω
- 16 Ω
- Sensitivity
- -
- 104 dB/mW
- Weight
- 6 g
- -
- Detachable cable
- -
- Yes
- Connector
- MMCX
- 4.4 mm balanced
What reviewers said
7Hz Eternal
This wired IEM uses a single 14.5 mm dynamic driver with an LCP diaphragm, housed in an aluminum shell topped with a sapphire-glass faceplate. At just 6 grams per earpiece, it's built for long, comfortable sessions, making it a solid pick for desk or home use. With a 30-ohm impedance and MMCX connectors, it pairs easily with most sources and allows for cable swapping.
- Pro:Very lightweight at 6g per ear
- Pro:Durable aluminum and sapphire-glass build
- Pro:Single dynamic driver offers coherent sound
- Con:No noise cancellation for noisy environments
- Con:Wired-only design limits portability convenience
- Con:LCP diaphragm may require burn-in for optimal sound
CrinEar Reference
The CrinEar Reference is a wired in-ear monitor that combines two dynamic drivers with three balanced armatures in a hybrid setup, offering a detailed and engaging sound signature. Its secure fit provides good passive noise isolation, making it a reliable choice for critical listening at its price point. The detachable 4.4mm balanced cable adds versatility for audiophiles with compatible sources.
- Pro:Effective passive noise isolation from a snug seal
- Pro:Hybrid driver configuration delivers a rich, layered sound
- Pro:Detachable balanced cable for enhanced audio quality and durability
- Con:Requires a source with a 4.4mm balanced output for full benefit
- Con:No active noise cancellation, so ambient noise may be present in louder environments
Summaries are AI-condensed and paraphrased from published reviews and specs - not original hands-on testing. More on our method.
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