FATFREQ x HBB Deuce 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.

FATFREQ x HBB Deuce
Kiwi Ears KE4

HearWiki score

Sound

8.2

8.6

Value

8.8

8.6

Price (USD)

$240

$200

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.

x HBB Deuce2024
KE42024

Specifications

x HBB DeuceKE4

Type: Wired IEMs; Wired IEMs
Price (USD): $240; $200
HearWiki score: 76; 84
Released: 2024; 2024
Availability: Discontinued; Still sold new
Driver: 2× dynamic; 2DD + 2BA hybrid
Driver type: dynamic; hybrid
Driver configuration: -; 2DD + 2BA
Driver size: -; 10 mm
Drivers per side: 2; 4
Impedance: -; 28 Ω
Active noise cancelling: No; No
Detachable cable: -; Yes
Connector: 2-pin 0.78 mm; 3.5 mm

Specification comparison of FATFREQ x HBB Deuce vs Kiwi Ears KE4
Spec	FATFREQ x HBB Deuce	Kiwi Ears KE4
Type	Wired IEMs	Wired IEMs
Price (USD)	$240	$200
HearWiki score	76 / 100 Great	84 / 100 Outstanding
Released	2024	2024
Audio
Driver	2× dynamic	2DD + 2BA hybrid
Driver type	dynamic	hybrid
Driver configuration	-	2DD + 2BA
Driver size	-	10 mm
Drivers per side	2	4
Impedance	-	28 Ω
Features
Active noise cancelling	No	No
Design
Detachable cable	-	Yes
Connector	2-pin 0.78 mm	3.5 mm

What reviewers said

FATFREQ x HBB Deuce

The FATFREQ x HBB Deuce is a wired dual-dynamic-driver IEM tuned for deep, physical bass impact, building on the brand's Basscannon lineage with a pronounced sub-bass shelf. It pairs that heavy low-end with clear imaging and a spacious soundstage, though it requires a bit more volume to shine and is best suited for dedicated bass enthusiasts rather than neutral listeners.

Pro:Powerful, tactile sub-bass response
Pro:Good imaging and soundstage for a bass-focused IEM
Pro:Dual dynamic drivers deliver strong dynamics

Con:Very bass-heavy tuning not for everyone
Con:Needs higher volume to reveal full performance
Con:No active noise cancellation or wireless features

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.

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New comparison FATFREQ x HBB Deuce Kiwi Ears KE4