Wired IEMs
Kiwi Ears KE4
84Outstanding
$200
Full review dataKiwi Ears KE4 vs Tanchjim Oxygen: which should you buy?
Specs, scores and condensed review verdicts for the Kiwi Ears KE4 vs Tanchjim Oxygen, side by side. Where a product has no HearWiki score yet, not enough reviews have been aggregated to rate it.
Wired IEMs
Tanchjim Oxygen
Not yet scored
$280
Full review dataScore 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
- Tanchjim Oxygen
HearWiki score
84
-
Sound
8.6
-
Value
8.6
-
Price (USD)
$200
$280
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 5 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. For 5 years between them, that is a thin return - treat this as a restyle rather than a new platform.
- KE420245 yr newer
- Oxygen2019
Specifications
KE4Oxygen
- Type
- Wired IEMs
- Wired IEMs
- Price (USD)
- $200
- $280
- HearWiki score
- 84
- Not scored
- Released
- 2024
- 2019
- Availability
- Still sold new
- Discontinued
- Driver
- 2DD + 2BA hybrid
- 10 mm dynamic
- Driver type
- hybrid
- dynamic
- Driver configuration
- 2DD + 2BA
- -
- Driver size
- 10 mm
- 10 mm
- Drivers per side
- 4
- 1
- Frequency response
- -
- 10 Hz - 40 kHz
- Impedance
- 28 Ω
- 32 Ω
- Sensitivity
- -
- 110 dB/mW
- Active noise cancelling
- No
- No
- Controls
- -
- buttons
- Water resistance
- -
- IPX0
- Detachable cable
- Yes
- Yes
- USB-C
- -
- No
- Connector
- 3.5 mm
- 2-pin 0.78 mm
- Microphones
- -
- 1
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
Tanchjim Oxygen
The Tanchjim Oxygen is a wired in-ear monitor that uses a single 10mm dynamic driver with a carbon nanotube diaphragm to deliver a wide 10Hz–40kHz frequency response. With a 32Ω impedance and 110dB sensitivity, it's easy to drive from most sources, and its detachable 2-pin cable adds versatility for audiophiles.
- Pro:Wide frequency range for detailed sound
- Pro:Efficient 110dB sensitivity for easy driving
- Pro:Detachable 2-pin cable for customization
- Con:No active noise cancellation
- Con:No USB-C or wireless connectivity
- Con:Lacks water resistance rating (IPX0)
Summaries are AI-condensed and paraphrased from published reviews and specs - not original hands-on testing. More on our method.
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