Wired IEMs
7Hz x Crinacle Zero: 2
83Outstanding
$25
Full review data7Hz x Crinacle Zero: 2 vs HZSOUND HEART MIRROR: which should you buy?
On aggregated review scores the 7Hz x Crinacle Zero: 2 comes out ahead with a HearWiki score of 83. The full breakdown - sub-scores, specs and what reviewers actually said - is below.
Our pick: 7Hz x Crinacle Zero: 2 - Outstanding overall at around $25.
Wired IEMs
HZSOUND HEART MIRROR
63Good
$49
Full review dataScore breakdown
Each axis is a 0–10 blend of what reviewers scored, not a lab measurement.
7Hz x Crinacle Zero: 2 leads on 4 of 4 measures.
- 7Hz x Crinacle Zero: 2
- HZSOUND HEART MIRROR
HearWiki score
83
63
Sound
8.1
6.9
Value
9.8
6.4
Price (USD)
$25
$49
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 7Hz x Crinacle Zero: 2 is 3 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 3 years between them, that is a thin return - treat this as a restyle rather than a new platform.
- x Crinacle Zero: 220233 yr newer
- HEART MIRROR2020
Specifications
x Crinacle Zero: 2HEART MIRROR
- Type
- Wired IEMs
- Wired IEMs
- Price (USD)
- $25
- $49
- HearWiki score
- 83
- 63
- Released
- 2023
- 2020
- Availability
- Still sold new
- Discontinued
- Driver
- 1DD
- 10 mm dynamic
- Driver type
- dynamic
- dynamic
- Driver configuration
- 1DD
- -
- Driver size
- 10 mm
- 10 mm
- Drivers per side
- 1
- -
- Impedance
- 32 Ω
- 32 Ω
- Active noise cancelling
- No
- -
- Detachable cable
- Yes
- -
- Connector
- 2-pin 0.78 mm
- -
What reviewers said
7Hz x Crinacle Zero: 2
The 7Hz x Crinacle Zero: 2 is a budget-friendly wired IEM that delivers a warm, fun sound signature with excellent tuning for its price. It's a highly recommended value pick that balances musicality with solid everyday performance, making it a worthy successor in the affordable audio space.
- Pro:Excellent price-to-performance ratio
- Pro:Warm, enjoyable tuning
- Pro:Detachable 0.78 mm 2-pin cable
- Con:No active noise cancellation
- Con:Not a technical showcase
- Con:Limited to wired use
HZSOUND HEART MIRROR
The HZSOUND Heart Mirror is a wired, budget-friendly IEM featuring a 10mm dynamic driver and a neutral-bright tuning that prioritizes vocal clarity and natural timbre over heavy bass. Its balanced, reference-leaning sound makes it a solid pick for monitoring-style listening, though achieving the best seal may require experimenting with different ear tips. With strong build quality and impressive value, it appeals to those who favor a clean, articulate presentation over a fun, V-shaped signature.
- Pro:Neutral-bright tuning with excellent vocal clarity
- Pro:Natural timbre and clean presentation
- Pro:Strong build quality for the price
- Con:Fit and seal can be finicky, requiring tip rolling
- Con:Not for listeners who want heavy bass or a V-shaped sound
Summaries are AI-condensed and paraphrased from published reviews and specs - not original hands-on testing. More on our method.
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