Wired IEMs
7Hz x Crinacle Zero: 2
83Outstanding
$25
Full review data7Hz x Crinacle Zero: 2 vs Sennheiser CX 100: 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
Sennheiser CX 100
46Weak
$32
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
- Sennheiser CX 100
HearWiki score
83
46
Sound
8.1
5.8
Value
9.8
5.8
Price (USD)
$25
$32
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 9 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 9 years between them, that is a thin return - treat this as a restyle rather than a new platform.
- x Crinacle Zero: 220239 yr newer
- CX 1002014
Specifications
x Crinacle Zero: 2CX 100
- Type
- Wired IEMs
- Wired IEMs
- Price (USD)
- $25
- $32
- HearWiki score
- 83
- 46
- Released
- 2023
- 2014
- Availability
- Still sold new
- Discontinued
- Driver
- 1DD
- dynamic
- Driver type
- dynamic
- dynamic
- Driver configuration
- 1DD
- -
- Driver size
- 10 mm
- -
- Drivers per side
- 1
- 1
- Frequency response
- -
- 17 Hz - 21 kHz
- Impedance
- 32 Ω
- 28 Ω
- Sensitivity
- -
- 119 dB/mW
- Sensitivity (dB/Vrms)
- -
- 119
- Active noise cancelling
- No
- No
- ANC type
- -
- none
- Transparency mode
- -
- No
- Companion app
- -
- No
- Custom EQ
- -
- No
- Wear detection
- -
- No
- Controls
- -
- none
- Weight
- -
- 10 g
- Detachable cable
- Yes
- No
- USB-C
- -
- No
- Connector
- 2-pin 0.78 mm
- -
- Model code
- -
- 508591 Black, 508592 White
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
Sennheiser CX 100
The Sennheiser CX 100 is a wired, lightweight in-ear model from 2014 that delivers a punchy, balanced sound with good clarity for its budget price. It performs well with pop, hip-hop, and rock, though its lack of controls and occasional muddiness in the lower mids may limit its appeal for some listeners. Its high sensitivity and broad frequency range make it a straightforward, no-frills option for casual use.
- Pro:Lightweight and comfortable fit
- Pro:Punchy, balanced sound with good dynamics
- Pro:Strong isolation for a wired IEM
- Con:No inline remote or controls
- Con:Lower mids can get muddy on bass-heavy tracks
- Con:Treble can sound bright and thin at times
Summaries are AI-condensed and paraphrased from published reviews and specs - not original hands-on testing. More on our method.
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