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Kiwi Ears KE4 vs Westone MACH 20: which should you buy?

On aggregated review scores the Kiwi Ears KE4 comes out ahead with a HearWiki score of 84. The full breakdown - sub-scores, specs and what reviewers actually said - is below.

Our pick: Kiwi Ears KE4 - Outstanding overall at around $199.

Score breakdown

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

Kiwi Ears KE4 leads on 4 of 4 measures.

  • Kiwi Ears KE4
  • Westone MACH 20
HearWiki score
84
48
Sound
8.6
6.2
Value
8.6
4.4
Price (USD)
$200
$300

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 Kiwi Ears KE4 is 2 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.

  • KE420242 yr newer
  • MACH 202022

Specifications

KE4MACH 20
Type
Wired IEMs
Wired IEMs
Price (USD)
$200
$300
HearWiki score
84
48
Released
2024
2022
Availability
Still sold new
Discontinued
Driver
2DD + 2BA hybrid
2× balanced armature
Driver type
hybrid
balanced-armature
Driver configuration
2DD + 2BA
-
Driver size
10 mm
-
Drivers per side
4
2
Frequency response
-
20 Hz - 18 kHz
Impedance
28 Ω
96 Ω
Sensitivity
-
110 dB/mW
Active noise cancelling
No
No
Weight
-
6 g
Detachable cable
Yes
-
Connector
3.5 mm
-

What reviewers said

Kiwi Ears KE4

The Kiwi Ears KE4 is a wired hybrid IEM that offers a balanced, relaxing sound with a distinct twist on the popular 'New Meta' tuning, adding extra bass and treble sparkle. It delivers solid midrange clarity and a comfortable fit, making it a versatile choice for many genres, though its smooth presentation may not excite those seeking aggressive or highly dynamic sound.

  • Pro:Well-balanced hybrid tuning with rich lower mids and airy treble
  • Pro:Comfortable fit and broad genre versatility
  • Pro:Good resolution and clarity for its price
  • Con:Sub-bass can get overpowering at times
  • Con:Limited resolving power and dynamic impact
  • Con:Smooth tuning may feel less exciting than V-shaped alternatives

Westone MACH 20

The Westone MACH 20 is a wired, dual balanced-armature IEM that offers a neutral, studio-oriented sound with clear mids and controlled bass. It's a comfortable, competent performer for monitoring and vocal-focused listening, though its treble extension and overall excitement are modest rather than class-leading.

  • Pro:Neutral, balanced tuning
  • Pro:Clear and forward mids
  • Pro:Lightweight and comfortable fit
  • Con:Limited treble extension
  • Con:Not an exciting or dynamic sound
  • Con:Average tonal tuning

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

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