Skip to content
HearWiki

7Hz x Crinacle Zero: 2 vs KZ ZS4: 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.

Score 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 ZS4
HearWiki score
83
49
Sound
8.1
5.2
Value
9.8
-
Price (USD)
$25
$43

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 KZ ZS4 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: 22023
  • ZS420263 yr newer

Specifications

x Crinacle Zero: 2ZS4
Type
Wired IEMs
Wired IEMs
Price (USD)
$25
$43
HearWiki score
83
49
Released
2023
2026
Availability
Still sold new
Sold new
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
-
20 Hz - 40 kHz
Impedance
32 Ω
18 Ω
Sensitivity
-
101 dB/mW
Active noise cancelling
No
No
ANC type
-
none
Transparency mode
-
No
Companion app
-
No
Custom EQ
-
No
Wear detection
-
No
Controls
-
buttons
Weight
-
23 g
Detachable cable
Yes
Yes
USB-C
-
No
Connector
2-pin 0.78 mm
3.5 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 ZS4

The KZ ZS4 is an affordable hybrid IEM pairing an 8mm dynamic driver with a balanced armature to deliver a lively, bass-forward sound. It's built for listeners who enjoy energetic, V-shaped tuning with strong detail retrieval, though its emphasis on lows and highs can overshadow the midrange. With a comfortable fit and low price, it offers impressive value for those seeking a fun, engaging listen rather than a neutral one.

  • Pro:Very affordable for a hybrid configuration
  • Pro:Energetic, bass-forward sound with good detail
  • Pro:Lightweight and comfortable fit
  • Con:V-shaped tuning may not suit neutral listeners
  • Con:Bass can be overly assertive at times
  • Con:Bright treble can lead to occasional harshness

Summaries are AI-condensed and paraphrased from published reviews and specs - not original hands-on testing. More on our method.

Compare something else

Swap either side out, or start again from the picker.

New comparison7Hz x Crinacle Zero: 2KZ ZS4