Westone ES40
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At a glance
- Brand
- Westone
- Type
- Wired IEMs
- Fit
- -
- Connection
- Wired
- Noise cancelling
- -
- Released
- 2018
The Westone ES40 is a custom in-ear monitor (IEM) designed for professional audio use, offering a personalized fit and high-fidelity sound reproduction.
The HearWiki takeAI-condensed
The Westone ES40 is a premium custom-fit in-ear monitor tailored for professional audio work, delivering detailed and accurate sound through a quad balanced-armature setup. Its personalized shell ensures comfort and isolation, while the 28-ohm impedance and 112 dB sensitivity make it easy to drive from a variety of sources.
What works
- Custom-fit comfort and isolation
- Detailed, balanced sound from four drivers
- High sensitivity for use with portable devices
- Wired connectivity with inline controls
What doesn't
- Premium price point
- Requires custom fitting process
- Limited to wired use only
Paraphrased from published reviews & specs - not an original hands-on test. Our AI disclosure.
Specifications
| Driver | 4× balanced armature |
|---|---|
| Driver type | balanced-armature |
| Drivers per side | 4 |
| Frequency response | 10 Hz - 20 kHz |
| Impedance | 28 Ω |
| Sensitivity | 112 dB/mW |
Audio
| Driver | 4× balanced armature |
|---|---|
| Driver type | balanced-armature |
| Drivers per side | 4 |
| Frequency response | 10 Hz - 20 kHz |
| Impedance | 28 Ω |
| Sensitivity | 112 dB/mW |
Features
| Controls | buttons |
|---|
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