Product Overview & Specifications
The Moondrop Chu II is an entry-level dynamic driver in-ear monitor (IEM) designed to deliver high fidelity, natural timbre, and refined resolution. Upgraded from its predecessor, the Chu II incorporates a 10mm high-performance dynamic driver paired with an Aluminium-Magnesium (Al-Mg) alloy dome composite diaphragm. By combining a rigid, ultra-lightweight dome with a flexible dual-polymer suspension surround, the driver extends treble bandwidth while maintaining controlled, punchy bass and ultra-low nonlinear distortion across the frequency spectrum.
Housed in a durable zinc-alloy acoustic cavity manufactured via precision alloy casting, the Chu II features a CNC-machined brass nozzle with a detachable front end. This user-replaceable nozzle design allows for easy cleaning or quick replacement of acoustic filters. Equipped with a standard 0.78mm 2-pin detachable cable interface and a 3.5mm single-ended termination, the Chu II provides versatile cable swapping and reliable daily usability.
KEY FEATURES & PROPRIETARY TECHNOLOGIES
- Aluminium-Magnesium Alloy Dome Composite Diaphragm: High-rigidity Al-Mg dome extends high-frequency detail, paired with a dual-polymer suspension surround for controlled low-frequency impact.
- Precision CNC Brass Acoustic Nozzle: Machined brass nozzle provides high structural density to stabilize acoustic resonance and refine vocal timber.
- Replaceable Acoustic Filter System: Detachable front nozzle tip enables quick filter replacement to maintain acoustic performance and cleanliness over time.
- Ultra-Low Nonlinear Distortion: Engineered to achieve under 0.05% total harmonic distortion for transparent, detailed signal reproduction.
- Cast Zinc-Alloy Cavity: Durable metal shell construction protected by a wear-resistant finish for long-term structural integrity.
- Detachable 0.78mm 2-Pin Cable Interface: Universal 2-pin connectors offer easy cable replacement or wireless adapter upgrading.
SPECIFICATIONS
| Specification | Detail |
|---|---|
| Product Category | In-Ear Monitor (IEM) / Dynamic Driver Earphones |
| Brand / Model | Moondrop — Chu II (Chu 2) |
| Driver Configuration | 10mm High-Performance Dynamic Driver |
| Diaphragm Material | Aluminium-Magnesium (Al-Mg) Alloy Dome Composite Diaphragm |
| Shell / Cavity Material | Cast Zinc Alloy with CNC Brass Nozzle |
| Frequency Response | 15 Hz – 38,000 Hz |
| Effective Frequency Response | 20 Hz – 20,000 Hz (IEC60318-4, -3dB) |
| Sensitivity | 119 dB/Vrms (@ 1 kHz) |
| Impedance | 18 Ω ± 15% (@ 1 kHz) |
| Total Harmonic Distortion (THD) | ≤ 0.5% (@ 1 kHz, 94 dB) / Nonlinear Distortion < 0.05% |
| Connector Type | 0.78mm 2-Pin Detachable |
| Plug Termination | 3.5mm Single-Ended Stereo Gold-Plated Jack |
| Included Accessories | 0.78mm 2-Pin Cable, Storage Pouch, Silicone Eartips (S, M, L), User Manual, QC Pass Card |
Customer Reviews
Moondrop
Est. 2015
Don't let the hassle of selling privately hold you back. We accept almost any trade-in (of lower value) to make your upgrade affordable. We even handle the logistics with our seamless courier service.
How it works:
The Offer: If you are happy with our quote, simply contact us to complete your purchase.
The Collection & Delivery: We will contact you to arrange the collection of your old equipment and delivery of your new equipment.
Ready to upgrade? Please complete the details below for a fast, accurate valuation. We will base your part exchange against the item you are currently viewing on the site.
MOONDROP CHU II In-Ear Monitors
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