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1 / 7Moondrop
Moondrop CHU High Performance Dynamic Driver
I choo-choo choose Chu.
MSRP
$21.99View on Amazon
Manufacturer's suggested retail price at launch. Check retailers for current availability.
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Key specs
Material Chassis Primary
Resin29%Plastic24%Aluminum18%Metal16%
Metal appears on 16% of the 49 in-ear monitors we've cataloged (of 38).
Connection Type
Wired-3.5mmMost commonWired-3.5mm95%Bluetooth5%
Wired-3.5mm is the most common — on 95% of the 37 in-ear monitors we've cataloged (of 38).
Ear Tip Material
SiliconeMost commonSilicone65%Memory foam20%Foam12%Others4%
Silicone is the most common — on 65% of the 51 in-ear monitors we've cataloged (of 38).
Has Microphone
YesFalse68%True32%
True appears on 32% of the 34 in-ear monitors we've cataloged (of 38).
Build
- Material Chassis Primary
- Zinc alloy, metal
Connectivity
- Connection Type
- Wired-3.5mm
- Cable Type
- 3.5mm single-ended
Design
- Ear Tip Material
- Silicone
- Ear Tip Sizes Included
- 10mm, 11mm, 13mm
- Earbud Form Factor
- In-ear
- Detachable Cable
- No
- Wearing Style
- Over-ear (cable up)
Microphone
- Has Microphone
- Yes
Sound
- Driver Size
- 10 mm
- Driver Count
- 1
- Driver Type
- Dynamic
- Frequency Response
- 10-35000 Hz
- Frequency Response High Hz
- 35000 Hz
- Frequency Response Low Hz
- 10 Hz
- Impedance
- 28 Ω
- Sensitivity
- 120 dB/mW
Features
- Inline Controls
- Yes
Identity
- Model Number
- Chu
Release
- Date
- 2022-04-08
- Msrp Usd
- 21.99 USD
- Year
- 2022
Lab data
How we test ›Objective measurements from the SoundGuys test lab — overlay other models to see how this one compares.
Moondrop CHU High Performance Dynamic DriverSoundGuys Headphone Preference Curve
Measured frequency response (dB relative) against the SoundGuys Headphone Preference Curve. When the measurement goes above the dashed line, that frequency is louder than our preference curve, and when it goes below: it's quieter. Use the curve for comparison purposes only, as your taste may vary.
| Frequency (Hz) | Response (dB) |
|---|---|
| 20 | 3.9 |
| 25 | 3.5 |
| 32 | 3.0 |
| 40 | 2.3 |
| 50 | 1.5 |
| 63 | 0.5 |
| 80 | -0.6 |
| 100 | -1.3 |
| 125 | -2.5 |
| 160 | -3.9 |
| 200 | -1.1 |
| 250 | -2.2 |
| 315 | -2.8 |
| 400 | -3.5 |
| 500 | -3.8 |
| 630 | -2.7 |
| 800 | -1.5 |
| 1000 | 0.1 |
| 1250 | 2.2 |
| 1600 | 4.7 |
| 2000 | 6.9 |
| 2500 | 8.9 |
| 3150 | 9.4 |
| 4000 | 7.9 |
| 5000 | 7.2 |
| 6300 | 5.2 |
| 8000 | 4.1 |
| 10000 | -4.0 |
| 12500 | -2.6 |
| 16000 | -3.0 |
| 20000 | -23.4 |
Moondrop CHU High Performance Dynamic Driver
Passive isolation (dB) with ANC off — how much ambient noise the fit blocks on its own. Higher on the chart means more attenuation.
| Frequency (Hz) | Attenuation (dB) |
|---|---|
| 21 | 11.1 |
| 26 | 11.6 |
| 33 | 5.5 |
| 41 | 5.5 |
| 52 | 6.5 |
| 65 | 5.7 |
| 82 | 6.6 |
| 103 | 4.8 |
| 130 | 2.5 |
| 163 | 0.7 |
| 205 | 9.1 |
| 259 | 12.5 |
| 325 | 15.3 |
| 410 | 20.1 |
| 516 | 13.0 |
| 613 | 11.3 |
| 772 | 17.7 |
| 972 | 15.4 |
| 1220 | 17.9 |
| 1540 | 19.6 |
| 1940 | 27.2 |
| 2440 | 33.8 |
| 3070 | 36.2 |
| 3870 | 32.4 |
| 4870 | 29.3 |
| 6130 | 32.2 |
| 7720 | 27.6 |
| 9720 | 31.0 |
| 12200 | 25.1 |
| 15400 | 30.8 |
| 19400 | 40.9 |
SoundGuys review
Isolation7.0
Comfort & fit6.8
Connectivity6.5
Design6.5
Portability8.0
Features5.7
The verdict
These budget buds put the pressure on those premium priced in-ear monitors to really justify the cost disparity. Offering excellent sound quality at any price, the Moondrop Chu is both a perfect entry into the audio enthusiast hobby, and an all around good pick for casual music fans. Beware of the sort of annoying over-ear cable sleeve, but once fitted in your ears you won't care.
✓Liked: Price to performance ratio is great, Fit is isolating and secure, Frequency response, Headphone jack
✕Could be better: Non-replaceable cable, Over-ear cable sleeves are annoying and hard to replace
Owners
How we verify ownersNobody who owns the Moondrop CHU High Performance Dynamic Driver has written in yet.
Owner reviews are not paid for, not solicited from specific owners, and not rewritten by us: at most we proofread typos, which is shown on the review’s own page and which the author can undo. The commission SoundGuys may earn on this page comes from retail links, never from owner reviews.
Own the Moondrop CHU High Performance Dynamic Driver?
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Questions from readers
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