Binary Acoustics 1900 vs Kiwi Ears KE4: 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.

Wired IEMs

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.

Binary Acoustics 1900
Kiwi Ears KE4

HearWiki score

Sound

8.6

Value

8.4

8.6

Price (USD)

$230

$200

Specifications

1900KE4

Type: Wired IEMs; Wired IEMs
Price (USD): $230; $200
HearWiki score: 79; 84
Released: 2026; 2024
Availability: Sold new; Still sold new
Driver: 6-driver hybrid; 2DD + 2BA hybrid
Driver type: hybrid; hybrid
Driver configuration: -; 2DD + 2BA
Driver size: 10 mm; 10 mm
Drivers per side: 6; 4
Frequency response: 8 Hz - 40 kHz; -
Sound signature: bass-heavy; -
Impedance: 10 Ω; 28 Ω
Sensitivity: 124 dB/mW; -
Active noise cancelling: -; No
Detachable cable: Yes; Yes
USB-C: No; -
Connector: 4.4 mm balanced; 3.5 mm

Specification comparison of Binary Acoustics 1900 vs Kiwi Ears KE4
Spec	Binary Acoustics 1900	Kiwi Ears KE4
Type	Wired IEMs	Wired IEMs
Price (USD)	$230	$200
HearWiki score	79 / 100 Great	84 / 100 Outstanding
Released	2026	2024
Audio
Driver	6-driver hybrid	2DD + 2BA hybrid
Driver type	hybrid	hybrid
Driver configuration	-	2DD + 2BA
Driver size	10 mm	10 mm
Drivers per side	6	4
Frequency response	8 Hz - 40 kHz	-
Sound signature	bass-heavy	-
Impedance	10 Ω	28 Ω
Sensitivity	124 dB/mW	-
Features
Active noise cancelling	-	No
Design
Detachable cable	Yes	Yes
USB-C	No	-
Connector	4.4 mm balanced	3.5 mm

What reviewers said

Binary Acoustics 1900

The Binary Acoustics 1900 is a six-driver hybrid IEM that delivers a bass-forward yet coherent sound, with punchy lows, natural mids, and smooth treble. Its premium build with stainless steel and resin feels solid, and it offers strong detail retrieval and layering for the price. This is a great pick for listeners who want a musical, engaging tuning with good technical chops around the $230 mark.

Pro:Musical bass-heavy tuning that remains balanced and coherent
Pro:Strong resolution and instrument separation for the price
Pro:Premium build with stainless steel faceplates and resin shell

Con:Limited sub-bass extension may disappoint hardcore bassheads
Con:Fixed 4.4 mm balanced cable limits source compatibility without adapters
Con:10 ohm impedance may be sensitive to output impedance on some devices

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

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.

New comparison Binary Acoustics 1900 Kiwi Ears KE4