Wired IEMs
KZ ES4
Not yet scored
$10
Full review dataKZ ES4 vs KZ Ling Long: which should you buy?
Specs, scores and condensed review verdicts for the KZ ES4 vs KZ Ling Long, side by side. Where a product has no HearWiki score yet, not enough reviews have been aggregated to rate it.
Wired IEMs
KZ Ling Long
72Good
$16
Full review dataScore breakdown
Each axis is a 0–10 blend of what reviewers scored, not a lab measurement.
KZ ES4
No sub-scores yet - not enough rated reviews.
KZ Ling Long
Sound7.0
Value8.0
Specifications
| Spec | KZ ES4 | KZ Ling Long |
|---|---|---|
| Type | Wired IEMs | Wired IEMs |
| Price (USD) | $10 | $16 |
| HearWiki score | Not scored | 72 / 100 · Good |
| Released | 2019 | 2024 |
| Audio | ||
| Driver | 1 balanced armature + 10mm dynamic driver | XUN-6 external magnetic dynamic unit |
| Driver size | 10 mm | 6 mm |
| Drivers per side | 2 | 1 |
| Frequency response | 20-40,000Hz | 20Hz-40kHz |
| Impedance | 25 Ω | 25 Ω |
| Sensitivity | 104 dB/mW | 103 dB/mW |
| Wireless | ||
| Bluetooth | none | - |
| Multipoint pairing | No | No |
| Features | ||
| Active noise cancelling | - | No |
| Controls | - | none |
| Design | ||
| Weight | 20 g | 83 g |
| Detachable cable | Yes | Yes |
| USB-C | - | No |
What reviewers said
KZ ES4
The KZ ES4 is an affordable hybrid in-ear monitor that pairs a 10mm dynamic driver for low-end punch with a balanced armature for detailed upper frequencies. Its sound signature leans heavily toward bass emphasis with a crisp, forward treble, all housed in a lightweight plastic shell with replaceable cables. While it offers impressive clarity for the price, the tuning may feel overly aggressive to those seeking a neutral response.
- Pro:Strong, impactful bass for the price
- Pro:Clear and detailed treble presentation
- Pro:Detachable cable allows easy upgrades
- Con:Bass can overpower midrange at times
- Con:Treble may be harsh for sensitive listeners
- Con:Plastic build feels less premium
KZ Ling Long
The KZ Ling Long is a budget-friendly wired IEM with a compact bullet-style shell and a warm, engaging sound signature. It offers solid build quality and good value, though its technical abilities are modest and it can get congested on complex tracks. Its open-back-inspired design gives a notably spacious soundstage for the price, but clarity and refinement are not its strengths.
- Pro:Very good build quality for the price
- Pro:Warm, enjoyable tuning with solid bass
- Pro:Spacious soundstage for an inexpensive IEM
- Con:Average technical performance and detail retrieval
- Con:Can sound congested on busy, dense music
- Con:No inline controls or microphone
Summaries are AI-condensed and paraphrased from published reviews and specs - not original hands-on testing. More on our method.
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