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Kiwi Ears KE4 vs NF ACOUS NM20: which should you buy?

On aggregated review scores the Kiwi Ears KE4 comes out ahead with a HearWiki score of 81. 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 3 of 4 measures.

  • Kiwi Ears KE4
  • NF ACOUS NM20
HearWiki score
81
57
Sound
8.6
6.1
Value
8.6
5.8
Price (USD)
$200
$120

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

Both shipped in 2024. 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.

  • KE42024
  • NM202024

Specifications

KE4NM20
Type
Wired IEMs
Wired IEMs
Price (USD)
$200
$120
HearWiki score
81
57
Released
2024
2024
Availability
Discontinued
Discontinued
Driver
2DD + 2BA hybrid
dynamic
Driver type
hybrid
dynamic
Driver configuration
2DD + 2BA
-
Driver size
10 mm
-
Drivers per side
4
-
Impedance
28 Ω
-
Sensitivity
-
108 dB/mW
Active noise cancelling
No
-
Detachable cable
Yes
-
Connector
3.5 mm
2-pin 0.78 mm

What reviewers said

Kiwi Ears KE4

The Kiwi Ears KE4 is a hybrid IEM that delivers a balanced, smooth sound signature with a touch of added bass and treble sparkle, making it a versatile choice for many genres. It offers solid clarity and a comfortable fit, though its tuning leans relaxed rather than aggressive, and it lacks the ultimate resolving power of pricier models. Overall, it's a polished performer around the $200 mark that suits listeners who prefer a neutral yet slightly warm presentation.

  • Pro:Well-balanced tuning with a relaxing character
  • Pro:Rich lower mids and airy treble
  • Pro:Comfortable fit for long sessions
  • Con:Sub-bass can feel a bit overpowering at times
  • Con:Limited dynamics and resolving power compared to top-tier IEMs
  • Con:Accessories are minimal

NF ACOUS NM20

The NF ACOUS NM20 is a wired dynamic-driver in-ear monitor designed as the follow-up to the NM2, catering to both studio and stage use. It features a custom MC2L-100P driver and a Clutter Trap acoustic system to deliver clear, balanced sound. With a 108 dB sensitivity and standard 2-pin connector, it offers reliable performance for monitoring applications.

  • Pro:Accurate, neutral tuning suited for critical listening
  • Pro:Efficient 108 dB sensitivity works well with most sources
  • Pro:Interchangeable 2-pin cable adds versatility
  • Con:No noise cancellation, so isolation relies on ear tips
  • Con:Lacks wireless or Bluetooth convenience
  • Con:May require a quality source to fully shine

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

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