Wired IEMs
Kiwi Ears KE4
81Outstanding
$200
Full review dataKiwi Ears KE4 vs NF ACOUS NA20: 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.
Wired IEMs
NF ACOUS NA20
78Great
$120
Full review dataScore 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 NA20
HearWiki score
81
78
Sound
8.6
8.0
Value
8.6
8.2
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
NF ACOUS NA20 (2025) against Kiwi Ears KE4 (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
- NA2020251 yr newer
Specifications
KE4NA20
- Type
- Wired IEMs
- Wired IEMs
- Price (USD)
- $200
- $120
- HearWiki score
- 81
- 78
- Released
- 2024
- 2025
- Availability
- Discontinued
- Sold new
- 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
- -
- 109 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 NA20
This wired IEM features a dynamic driver with a beryllium-coated diaphragm, designed for immersive music listening and extended sessions. It prioritizes a natural, engaging sound signature over technical extras, making it a straightforward choice for those who value comfort and musicality. With a high sensitivity and standard 2-pin connector, it pairs easily with a wide range of sources.
- Pro:Warm, musical tuning ideal for long listening
- Pro:Efficient driver works well with most devices
- Pro:Comfortable fit for extended use
- Con:No noise isolation or cancellation features
- Con:Requires a wired source, no Bluetooth option
- Con:Beryllium coating may not suit all tonal preferences
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.