MOONDROP CHU II 10mm Dynamic Driver Hi-Fi IEM – Black/Gold | 6972585501477

Experience detailed Hi-Fi sound, premium metal construction, and excellent everyday versatility with the MOONDROP CHU II 10mm Dynamic Driver Hi-Fi IEM – Black/Gold.

The CHU II is a second-generation entry-level Hi-Fi in-ear monitor featuring a 10mm high-performance dynamic driver with an aluminum-magnesium alloy composite diaphragm, a durable zinc-alloy shell, precision CNC-machined brass acoustic nozzles, replaceable acoustic filters, and a detachable 0.78mm 2-pin cable. MOONDROP tunes the CHU II around its VDSF Target Response, aiming for a natural and balanced presentation suitable for music, gaming, movies, and everyday listening.

The standard CHU II uses a 3.5mm single-ended connection, with a rated frequency response of 15Hz–38kHz, effective response of 20Hz–20kHz, impedance of 18Ω ±15%, sensitivity of 119dB/Vrms, and THD of no more than 0.5% at 1kHz / 94dB.

EAN 6972585501477 corresponds to the standard MOONDROP CHU II 3.5mm model, with retailers identifying this version with its Black and Gold appearance.

Key Features

• 10mm High-Performance Dynamic Driver – Full-range single-driver design provides coherent bass, mids, and treble reproduction.
• Aluminum-Magnesium Alloy Composite Diaphragm – High-rigidity, lightweight diaphragm material designed to improve responsiveness and high-frequency extension.
• VDSF Target Tuning – Tuned by MOONDROP's acoustic engineers to closely follow the company's VDSF reference response.
• Ultra-Low Nonlinear Distortion – Rated at THD ≤0.5% at 1kHz, 94dB.
• 15Hz–38kHz Rated Frequency Response – Wide manufacturer-rated frequency range.
• 20Hz–20kHz Effective Response – Rated using IEC60318-4 at -3dB.
• 18Ω ±15% Impedance – Easy to pair with many portable and desktop sources.
• 119dB/Vrms Sensitivity – Suitable for common portable DACs, PCs, laptops, handhelds, and compatible mobile devices.
• Durable Zinc-Alloy Housing – Metal shell provides a more premium and rigid construction than basic plastic IEMs.
• CNC-Machined Brass Nozzle – Separate precision brass acoustic nozzle improves manufacturing accuracy and gives the CHU II its distinctive Gold accent.
• Replaceable Acoustic Filter System – New-generation removable filters improve long-term serviceability.
• Detachable 0.78mm 2-Pin Cable – Makes cable replacement and compatible upgrades easier.
• 3.5mm Single-Ended Plug – Broad compatibility with standard analog headphone outputs.
• Multiple Ear Tips Included – S, M, and L sizes help users achieve a better fit and acoustic seal.
• Storage Bag Included – Helps protect and organize the IEMs during travel.
• No Battery Required – Pure wired design eliminates charging, pairing, and battery management.
• Black/Gold Design – Black zinc-alloy body with contrasting brass nozzle creates a premium appearance.
• Suitable for Music & Gaming – Balanced tuning and wired low-latency operation make the CHU II useful for both entertainment and gaming.

Specifications

MOONDROP's official specification confirms the 10mm dynamic driver, aluminum-magnesium diaphragm, zinc-alloy housing, 0.78mm 2-pin connector, 3.5mm plug, 15Hz–38kHz response, 18Ω impedance, 119dB/Vrms sensitivity, and ≤0.5% THD.

10mm High-Performance Dynamic Driver

The heart of the CHU II is its 10mm dynamic driver.

Rather than using several different driver types for separate frequency bands, the CHU II uses one full-range dynamic transducer to reproduce the entire musical spectrum. This helps maintain a coherent presentation across bass, vocals, instruments, and treble.

The driver is suitable for reproducing:

• Kick Drums
• Bass Guitar
• Electronic Bass
• Vocals
• Piano
• Guitar
• Cymbals
• Game Effects
• Movie Soundtracks
• Environmental Audio

Aluminum-Magnesium Alloy Composite Diaphragm

A major technical feature of the CHU II is its aluminum-magnesium alloy composite diaphragm.

MOONDROP uses this lightweight, high-rigidity diaphragm material to improve driver responsiveness. Linsoul specifically notes that the aluminum-magnesium dome and ultra-thin voice-coil design are intended to improve treble extension and deliver punchier bass response.

Potential acoustic benefits include:

• Faster Transient Response
• Improved Detail
• Cleaner Treble
• Better Bass Definition
• More Precise Instrument Attacks
• Reduced Unwanted Diaphragm Flex

Tuned to MOONDROP's VDSF Target

The CHU II is tuned around MOONDROP's VDSF Target Response.

MOONDROP describes VDSF as a target frequency-response curve developed using head-related transfer-function data and an ideal-room preference curve. The CHU II was tuned by experienced acoustic engineers and audiophiles to closely follow that reference.

In practical terms, the tuning is aimed at providing an enjoyable balance between:

• Bass
• Vocals
• Midrange Instruments
• Treble Detail
• Overall Tonal Naturalness

rather than exaggerating one part of the frequency spectrum excessively.

Ultra-Low Distortion

MOONDROP rates the CHU II at:

THD ≤0.5% @ 1kHz, 94dB.

Lower distortion means the driver introduces fewer unwanted harmonic artifacts when reproducing an audio signal.

This can contribute to:

• Cleaner Vocals
• Better Instrument Separation
• Improved Detail
• Less Congestion
• More Controlled Sound

Wide 15Hz–38kHz Frequency Response

The manufacturer-rated frequency-response range is:

15Hz – 38,000Hz.

MOONDROP separately lists an effective frequency response of:

20Hz – 20,000Hz (IEC60318-4, -3dB).

This gives the CHU II wide technical bandwidth covering low bass through upper-frequency information.

18Ω Impedance

The CHU II has a rated impedance of:

18Ω ±15% @ 1kHz.

Its relatively low impedance makes it practical for many everyday sources, including compatible:

• Smartphones
• USB DAC Dongles
• Laptops
• Desktop PCs
• Gaming Handhelds
• Portable Audio Players
• Game Controllers
• Portable DAC/Amplifiers

A powerful desktop headphone amplifier is generally not required for ordinary listening.

119dB/Vrms Sensitivity

MOONDROP specifies sensitivity at:

119dB/Vrms @ 1kHz.

Combined with its 18Ω impedance, the CHU II is designed to work efficiently with many portable audio devices.

Actual listening volume will still depend on the output power of the connected source.

Premium Zinc-Alloy Housing

Unlike many entry-level IEMs that use plastic enclosures, the CHU II uses a zinc-alloy metal cavity.

MOONDROP's alloy-casting construction is intended to provide:

• Better Structural Rigidity
• Durable Everyday Construction
• Premium Surface Feel
• Refined Appearance

The metal design gives the CHU II a noticeably more substantial build than many budget earphones.

CNC-Machined Brass Acoustic Nozzle

The CHU II uses a separate CNC-machined brass nozzle rather than forming the complete nozzle directly into the housing.

MOONDROP says the separate brass component provides higher precision and density.

The brass nozzle also creates the distinctive Gold accent against the darker zinc-alloy shell.

Replaceable Acoustic Filter

The CHU II incorporates a new-generation replaceable acoustic filter system.

This is useful because acoustic filters can gradually become affected by:

• Earwax
• Dust
• Moisture
• Debris

A replaceable design improves long-term serviceability compared with permanently integrated filters.

Detachable 0.78mm 2-Pin Cable

One of the major upgrades over the original CHU is the use of a detachable 0.78mm 2-pin cable connection.

This provides several advantages:

• Easier Cable Replacement
• Longer Potential IEM Service Life
• Compatible Aftermarket Cable Options
• Easier Repair if the Cable Is Damaged
• Potential Bluetooth Adapter Compatibility
• Different Cable-Length Options

For an affordable IEM, detachable cable support is especially useful.

Standard 3.5mm Connection

EAN 6972585501477 corresponds to the standard CHU II version using a 3.5mm analog connection.

The standard 3.5mm plug works with many devices including:

• Desktop PCs
• Laptops
• Portable Music Players
• Gaming Handhelds
• Compatible Game Controllers
• Smartphones with Headphone Jacks
• USB DAC Adapters with 3.5mm Output

Important: CHU II vs CHU II DSP

MOONDROP also sells a separate CHU II DSP version.

The standard model in this listing uses:

3.5mm Single-Ended Audio

The CHU II DSP instead uses:

USB Type-C.

EAN 6972585501477 is associated with the standard 3.5mm CHU II, so it should not be described as the Type-C DSP version.

Multiple Ear Tips Included

MOONDROP supplies the CHU II with:

• Small Ear Tips
• Medium Ear Tips
• Large Ear Tips

for a total of 3 pairs.

Choosing the correct ear-tip size is especially important with an IEM because the seal can affect:

• Bass Response
• Sound Isolation
• Comfort
• Stability
• Overall Tonal Balance

If the sound seems thin or bass-light, trying a different ear-tip size can often improve the seal.

Passive Noise Isolation

The CHU II does not use electronic Active Noise Cancellation.

Instead, the in-ear design reduces outside noise through the physical seal formed by the silicone ear tips.

This provides passive isolation without:

• Batteries
• ANC Electronics
• Charging
• Digital Processing

A secure seal is important for obtaining the best isolation and bass response.

Excellent for Music

The CHU II's VDSF-oriented tuning makes it a versatile affordable IEM for different music genres.

Suitable for:

• Pop
• Rock
• Hip-Hop
• Electronic Music
• R&B
• Jazz
• Classical
• Acoustic
• Metal
• Soundtracks

Its tuning aims to balance bass impact, vocal clarity, and treble detail rather than focusing exclusively on one genre.

Great for Competitive Gaming

Although the CHU II is primarily a Hi-Fi IEM rather than a dedicated gaming headset, it can also work well for gaming.

A wired IEM can reproduce useful game cues including:

• Enemy Footsteps
• Gunfire
• Reload Sounds
• Vehicle Movement
• Environmental Effects
• Character Dialogue
• Directional Stereo Cues

The wired connection also avoids Bluetooth audio latency.

Great for FPS Games

The CHU II is suitable for competitive games such as:

• Counter-Strike 2
• VALORANT
• Call of Duty
• Fortnite
• Apex Legends
• PUBG
• Rainbow Six Siege
• Battlefield
• Overwatch

Its lightweight IEM design may also appeal to players who find traditional gaming headsets too heavy or warm.

Great for PlayStation Gaming

The standard 3.5mm CHU II can provide game audio through compatible PlayStation controller headphone outputs.

This makes it useful for:

• PS5 Gaming
• PS4 Gaming
• Single-Player Games
• Competitive Multiplayer
• Racing Games
• Sports Games

Important: The standard CHU II does not include a microphone, so a separate microphone solution is required for voice chat.

Great for Xbox Gaming

The 3.5mm version can also provide audio through compatible Xbox controllers equipped with a standard headset/audio connection.

This makes it useful for:

• Xbox Series X|S
• Compatible Xbox One Controllers
• Forza
• Call of Duty
• EA Sports FC
• Racing Games
• Story Games

Voice chat still requires a separate microphone because this standard CHU II cable is audio-only.

Great for Nintendo Switch

The standard 3.5mm connection also makes the CHU II convenient for compatible Nintendo Switch systems with an analog headphone output.

Its compact form factor is particularly useful for portable gaming because it requires:

• No Battery
• No Wireless Pairing
• No Charging
• No USB Receiver

Great for Gaming Handhelds

The CHU II is also a strong companion for compatible handheld PCs and gaming devices.

Potential uses include:

• Steam Deck
• ASUS ROG Ally
• Lenovo Legion Go
• Gaming Laptops
• Portable PCs

Its wired connection offers simple low-latency audio without adding another device that needs charging.

Lightweight Alternative to Gaming Headsets

Traditional gaming headsets can become warm during extended gaming sessions.

The CHU II offers a much smaller alternative with:

• No Headband
• No Large Earcups
• Compact Storage
• Lightweight Ear-Level Design
• Wired Low-Latency Audio

This can make it particularly appealing during longer competitive gaming sessions.

Great for Movies & Streaming

The CHU II is not limited to gaming and music.

Its wide frequency response and balanced tuning make it useful for:

• Netflix
• YouTube
• Movies
• Anime
• TV Shows
• Streaming
• Podcasts

Clear midrange reproduction can also help dialogue remain easy to follow.

No Battery Required

The standard CHU II is fully wired.

That means:

• No Charging
• No Bluetooth Pairing
• No Battery Degradation
• No Wireless Codec Selection
• No Wireless Receiver

Simply connect the 3.5mm cable to a compatible audio source.

Black/Gold Premium Design

The CHU II combines a dark zinc-alloy housing with a contrasting precision brass nozzle, creating the Black/Gold aesthetic associated with EAN 6972585501477.

The design works well with:

• Black Gaming Setups
• Gold Accessories
• Minimalist Desks
• Gaming Handhelds
• Portable DACs
• Hi-Fi Audio Setups

CHU II vs Original CHU

The second-generation CHU introduces several practical upgrades over the original model.

The original CHU uses a titanium-coated diaphragm and 28Ω impedance, while CHU II moves to the aluminum-magnesium diaphragm, detachable 2-pin cable, brass nozzle, and 18Ω electrical design.

Perfect For

• Hi-Fi Beginners
• Budget Audiophile IEM Buyers
• Music Listening
• PC Gaming
• PS5 Gaming
• PS4 Gaming
• Xbox Gaming
• Nintendo Switch
• FPS Gaming
• Competitive Gaming
• Gaming Handhelds
• Steam Deck
• ROG Ally
• Legion Go
• Portable DAC Users
• Laptops
• Desktop PCs
• Movies
• Streaming
• Everyday Listening

Why Choose the MOONDROP CHU II?

• High-performance 10mm dynamic driver.
• Aluminum-magnesium alloy composite diaphragm.
• Tuned around MOONDROP's VDSF Target Response.
• Wide 15Hz–38kHz rated frequency response.
• Effective 20Hz–20kHz response.
• 18Ω ±15% impedance.
• 119dB/Vrms sensitivity.
• Low ≤0.5% THD.
• Premium zinc-alloy housing.
• Separate CNC-machined brass nozzle.
• Replaceable acoustic filter system.
• Detachable 0.78mm 2-pin cable.
• Standard 3.5mm connection.
• S, M, and L ear tips included.
• Storage bag included.
• Passive noise isolation.
• No batteries required.
• No Bluetooth latency.
• Suitable for music and gaming.
• Great for portable gaming devices.
• Premium Black/Gold design.
• EAN: 6972585501477.

Package Contents

MOONDROP's official package specification includes:

• 1 × Pair of MOONDROP CHU II IEMs
• 1 × Detachable Cable
• 1 × Storage Bag
• 3 × Pairs of Ear Tips – S / M / L
• 1 × User Manual
• 1 × QC Certificate Card
• 1 × Wearing-Method Card

Important

Microphone: The standard CHU II identified by EAN 6972585501477 is the standard wired 3.5mm IEM configuration and does not include an inline microphone. A separate microphone is required for gaming voice chat.

Connection: This model uses a 3.5mm single-ended plug. It should not be confused with the separately sold CHU II DSP, which uses USB Type-C.

ANC: The CHU II does not feature Active Noise Cancellation. Noise reduction is passive and depends on achieving a good seal with the supplied ear tips.

Compatibility: Phones and tablets without a 3.5mm headphone port require an appropriate USB-C, Lightning, or other compatible DAC/audio adapter.