Wired IEMs
7Hz x Crinacle Zero: 2
83Outstanding
$25
Full review data7Hz x Crinacle Zero: 2 vs KZ ZSA: 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
KZ ZSA
39Weak
$48
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
- KZ ZSA
HearWiki score
83
39
Sound
8.1
5.1
Value
9.8
-
Price (USD)
$25
$48
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 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.
- x Crinacle Zero: 220234 yr newer
- ZSA2019
Specifications
x Crinacle Zero: 2ZSA
- Type
- Wired IEMs
- Wired IEMs
- Price (USD)
- $25
- $48
- HearWiki score
- 83
- 39
- Released
- 2023
- 2019
- Availability
- Still sold new
- Discontinued
- Driver
- 1DD
- 1DD + 1BA hybrid
- Driver type
- dynamic
- hybrid
- Driver configuration
- 1DD
- 1DD + 1BA
- Driver size
- 10 mm
- 8 mm
- Drivers per side
- 1
- 2
- Frequency response
- -
- 7 Hz - 40 kHz
- Impedance
- 32 Ω
- 18 Ω
- Sensitivity
- -
- 101 dB/mW
- Active noise cancelling
- No
- No
- Weight
- -
- 19 g
- Detachable cable
- Yes
- Yes
- USB-C
- -
- No
- Connector
- 2-pin 0.78 mm
- -
- Microphones
- -
- 1
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
KZ ZSA
The KZ ZSA is a budget-friendly hybrid IEM with a warm, energetic sound, highlighted by deep bass and crisp, detailed treble. Its sturdy metal build and detachable cable add value, though the forward treble and sometimes heavy bass may not suit all listeners. Fit can be inconsistent depending on ear shape.
- Pro:Sturdy metal construction
- Pro:Deep, impactful bass
- Pro:Clear mids and detailed highs
- Con:Bass can be overpowering for some
- Con:Treble may come across as sharp
- Con:Fit issues reported by certain users
Summaries are AI-condensed and paraphrased from published reviews and specs - not original hands-on testing. More on our method.
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