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7Hz x Crinacle Zero: 2 vs HiFiMAN RE400 In-Ear Monitor: 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 3 of 4 measures.

  • 7Hz x Crinacle Zero: 2
  • HiFiMAN RE400 In-Ear Monitor
HearWiki score
83
67
Sound
8.1
6.9
Value
9.8
9.4
Price (USD)
$25
$20

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

HiFiMAN RE400 In-Ear Monitor (2024) against 7Hz x Crinacle Zero: 2 (2023). 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: 22023
  • RE400 In-Ear Monitor20241 yr newer

Specifications

x Crinacle Zero: 2RE400 In-Ear Monitor
Type
Wired IEMs
Wired IEMs
Price (USD)
$25
$20
HearWiki score
83
67
Released
2023
2024
Availability
Still sold new
Discontinued
Driver
1DD
8.5 mm dynamic
Driver type
dynamic
dynamic
Driver configuration
1DD
-
Driver size
10 mm
8.5 mm
Drivers per side
1
1
Frequency response
-
15 Hz - 22 kHz
Impedance
32 Ω
32 Ω
Sensitivity
-
102 dB/mW
Active noise cancelling
No
No
Controls
-
buttons
Weight
-
12.9 g
Detachable cable
Yes
-
Connector
2-pin 0.78 mm
-
Model code
-
RE400 Waterline

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

HiFiMAN RE400 In-Ear Monitor

The HiFiMAN RE400 is a compact wired IEM that delivers a neutral, clean, and transparent sound with good control and detail, making it a strong budget option for audiophiles. Its small size and lightweight build ensure a comfortable fit, though the stock ear tips can limit sonic performance and cable noise is noticeable when worn cable-down. Overall, it offers impressive value for its price, with a precise and orderly presentation across the frequency range.

  • Pro:Neutral, transparent sound signature
  • Pro:Compact and lightweight design
  • Pro:Excellent value for budget price
  • Con:Stock ear tips degrade audio quality
  • Con:Cable noise noticeable when worn straight down
  • Con:No active noise cancellation

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

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New comparison7Hz x Crinacle Zero: 2HiFiMAN RE400 In-Ear Monitor