7Hz x Crinacle Zero: 2 vs KZ EDX ULTRA: which should you buy?

On aggregated review scores the 7Hz x Crinacle Zero: 2 comes out ahead with a HearWiki score of 79. The full breakdown - sub-scores, specs and what reviewers actually said - is below.

Our pick: 7Hz x Crinacle Zero: 2 - Great overall at around $25.

Wired IEMs

Score breakdown

Each axis is a 0–10 blend of what reviewers scored, not a lab measurement.

7Hz x Crinacle Zero: 2 leads on 3 of 4 measures.

7Hz x Crinacle Zero: 2
KZ EDX ULTRA

HearWiki score

Sound

8.1

5.8

Value

9.8

5.7

Price (USD)

$25

$22

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

7Hz x Crinacle Zero: 2 (2023) against KZ EDX ULTRA (2022). These are 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.

x Crinacle Zero: 220231 yr newer
EDX ULTRA2022

Specifications

x Crinacle Zero: 2EDX ULTRA

Type: Wired IEMs; Wired IEMs
Price (USD): $25; $22
HearWiki score: 79; 53
Released: 2023; 2022
Availability: Discontinued; 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; 26 Ω
Active noise cancelling: No; No
Detachable cable: Yes; Yes
Connector: 2-pin 0.78 mm; -

Specification comparison of 7Hz x Crinacle Zero: 2 vs KZ EDX ULTRA
Spec	7Hz x Crinacle Zero: 2	KZ EDX ULTRA
Type	Wired IEMs	Wired IEMs
Price (USD)	$25	$22
HearWiki score	79 / 100 Great	53 / 100 Average
Released	2023	2022
Audio
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	26 Ω
Features
Active noise cancelling	No	No
Design
Detachable cable	Yes	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 dynamic IEM that delivers a warm, engaging sound signature with impressive tonal balance for its price. It stands out as an easy recommendation for everyday listening, offering strong performance and value without trying to be a technical marvel.

Pro:Excellent tuning for the price
Pro:Warm and fun sound presentation
Pro:Removable cable with standard 2-pin connector

Con:No noise cancellation
Con:Not a technical showcase
Con:May lack detail for critical listeners

KZ EDX ULTRA

The KZ EDX Ultra is a budget-friendly wired IEM with a lively, bass-forward sound signature that offers solid build quality and comfortable fit for its low price. It delivers good value for casual listeners, though its tuning can feel uneven, with recessed mids and occasionally harsh treble that limit its technical performance compared to slightly more expensive options.

Pro:Very affordable price point
Pro:Solid build quality for the cost
Pro:Comfortable fit for extended listening

Con:Mids can sound recessed or distant
Con:Treble may become fatiguing or rough
Con:Limited resolution and soundstage depth

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

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