Wired IEMs
KZ Zenith
82Great
$47
Full review dataKZ Zenith vs TRN Earphone 4: which should you buy?
On aggregated review scores the KZ Zenith comes out ahead with an HearWiki score of 82. The full breakdown - sub-scores, specs and what reviewers actually said - is below.
Our pick: KZ Zenith - Great overall at around $47.
Wired IEMs
TRN Earphone 4
68Good
$87
Full review dataScore breakdown
Each axis is a 0–10 blend of what reviewers scored, not a lab measurement.
KZ Zenith
Sound8.5
Value8.0
TRN Earphone 4
Sound7.0
Value6.5
Specifications
| Spec | KZ Zenith | TRN Earphone 4 |
|---|---|---|
| Type | Wired IEMs | Wired IEMs |
| Price (USD) | $47 | $87 |
| HearWiki score | 82 / 100 · Great | 68 / 100 · Good |
| Released | 2024 | 2019 |
| Audio | ||
| Driver | Full-range ultra-linear Dynamic Driver X | hybrid |
| Driver size | 10 mm | 10 mm |
| Drivers per side | 1 | 4 |
| Frequency response | 20Hz-40kHz | 20Hz-40kHz |
| Impedance | 41 Ω | 22 Ω |
| Sensitivity | 128 dB/mW | 105 dB/mW |
| Wireless | ||
| Bluetooth | - | none |
| Codecs | - | LDAC, SBC, AAC |
| Multipoint pairing | - | No |
| Battery | ||
| Wireless charging | - | No |
| Features | ||
| ANC type | - | none |
| Transparency mode | - | No |
| Companion app | - | No |
| Custom EQ | - | No |
| Wear detection | - | No |
| Controls | none | - |
| Design | ||
| Weight | - | 7 g |
| Detachable cable | Yes | - |
| USB-C | No | No |
| Model code | - | TRN MT4 |
What reviewers said
KZ Zenith
The KZ Zenith is a wired, single-dynamic-driver IEM that delivers a balanced, non-fatiguing sound with punchy bass, detailed mids, and smooth treble. It's highly sensitive and easy to drive, making it a versatile choice for portable use, while its build quality and fit are praised. Despite a few minor caveats, it offers strong technical performance and competes well above its modest price point.
- Pro:Balanced, non-offensive tuning with textured bass
- Pro:Clear and detailed mids with refined treble
- Pro:Very easy to drive and highly sensitive
- Con:No active noise cancellation or controls
- Con:Cable is detachable but not USB-C
- Con:Minor caveats in overall technical refinement
TRN Earphone 4
The TRN MT4 is a hybrid in-ear monitor that pairs two Knowles balanced armatures with two dynamic drivers, delivering a clean, spacious, and highly detailed sound signature. It prioritizes technical performance—such as strong detail retrieval—over a warm or bass-heavy tuning, making it a solid choice for analytical listening. With a comfortable fit and lightweight build, it offers good value around its price point, though it lacks wireless features and app support.
- Pro:Excellent detail retrieval and clarity
- Pro:Spacious, clean soundstage
- Pro:Comfortable and lightweight fit
- Con:Not ideal for bass-heavy or warm sound preferences
- Con:No Bluetooth or app support
- Con:Limited control options
Summaries are AI-condensed and paraphrased from published reviews and specs - not original hands-on testing. More on our method.
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