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Authorized dealers for Moondrop JIU

  • Apos Audio — online and in-store — Oakland, California, United States (website)
  • ARK Audio — online and in-store — Borensberg, Östergötlands län, Sweden (website)
  • Audio 46 — online and in-store — New York, New York, United States (website)
  • Audio Concierge — online and in-store — England, United Kingdom (website)
  • Audio Emotion — online and in-store — Glenrothes, Scotland, United Kingdom (website)
  • Audio Magic - EU — online and in-store — Wola, Województwo mazowieckie, Poland (website)
  • AUDIOPHONICS — in-store — Bordeaux, Nouvelle-Aquitaine, France (website)
  • Bloom Audio — online and in-store — Gibbsboro, New Jersey, United States (website)
  • Elise Audio — online and in-store — Paddington, England, United Kingdom (website)
  • GEEKWILLS — online and in-store — Beijing, Beijing, China (website)

and 13 more verified dealers

Moondrop JIU #1
Moondrop JIU variant 1

Moondrop JIU

China flag

The Moondrop JIU brings a natural, spacious sound to USB-C listening, pairing DSP convenience with impressively organized imaging and clear instrument separation. MajorHifi highlights its layered stereo field, while Headphonesty praises the comfortable fit and strong extension. Smooth treble, a balanced midrange, and an all-in-one Type-C design make it a particularly compelling budget IEM.

View at Moondrop
Specifications12 reviews & sources

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87/100
Rating for JIU

Nicely Roasted

Sound Quality

85/100

Fit Comfort Isolation

90/100

Build Accessories

89/100

Value for Money

92/100

Pros

Unusually capable imaging, separation, and layered staging for an affordable USB-C IEM.

Comfortable deep-fitting shells provide good isolation for long listening sessions.

Built-in USB-C DAC/DSP offers simple, consistent plug-and-play use with modern phones and computers.

Cons

Bass prioritizes texture and control over physical slam; mid-bass body can feel light.

Upper-mid and mid-treble energy can sound shouty or fatiguing on some units, recordings, or tip choices.

Fixed cable limits long-term serviceability and flexibility.

WATT RECOMMENDS

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What Reviewers Are Saying

"For the budget segment, these are the best earphones I have heard for listening to this kind of material."

— PortaFi

SOUND QUALITY PERFORMANCE 85/100

The JIU is widely described as a natural, balanced and technically capable USB-C IEM with clean spatial organization and respectable extension at its price. Its leaner low-end weight, occasional upper-mid shout, and some disagreement over treble refinement keep it from being an across-the-board crowd-pleaser.

Bass

84/100

MajorHifi and PortaFi hear a controlled, textured low end with good sub-bass reach, realistic tone, and useful punch rather than a heavy-handed boost. Headphonesty finds dense rumbles insufficiently physical and the mid-bass too light for convincing snares and male-vocal body; another reviewer considers it distinctly lean.

Midrange

84/100

Several reviews praise a natural or neutral midrange with clear vocals, realistic timbre, and a nicely balanced sense of weight. Headphonesty notes that sparse arrangements can expose shoutiness in high female vocals and thin male vocals, while Tone Deaf Monk found vocals muted and unconvincing.

Treble

84/100

PortaFi describes the treble as extended, even, smooth, and free from harsh spikes, with enough energy to sound natural and lively. Headphonesty hears a potentially fatiguing mid-treble peak and some upper-treble fuzziness, while one dissenting review wanted more articulation and detail.

Resolution Separation

87/100

MajorHifi reports clearly localized elements and good detail, while both PortaFi reviews find resolution respectable to slightly above average with appropriate tips. The JIU is not presented as a microdetail specialist, but reviewers generally find its separation capable for a $25 USB-C model.

Soundstage Imaging

88/100

Reviewers consistently find the stage and imaging unusually competent for the price, with organized layers, convincing depth, and instruments that retain their own space. Width is generally average to slightly above average rather than expansive, and Headphonesty notes that precise front-to-back placement can be somewhat fuzzy.

Dynamics Coherence

83/100

Headphonesty finds decent macrodynamic punch, above-average speed, and no major blurring in busy tracks, but wants more subtle microdynamic contrast. PortaFi similarly characterizes the presentation as relaxed rather than intensely micro-contrasty, though it praises the balanced signature's dynamics and emotional expression.

FIT COMFORT ISOLATION PERFORMANCE 90/100

The compact metal shells, long nozzle, and deep insertion are repeatedly said to provide a stable, comfortable fit with effective passive isolation. Tip choice remains important: one reviewer preferred Moondrop's original black silicone tips over the included Spring Tips for both fit and sound.

Seal Stability

90/100

PortaFi reports that the compact shells, long nozzle, tacky silicone tips, and supplied ear hooks help the JIU sit securely and seal well. The deep-fitting design is broadly praised, although inToit Reviews preferred alternate Moondrop silicone tips to the Spring Tips.

Comfort

91/100

Headphonesty says the JIU can be worn for hours without issue, and MajorHifi calls it very comfortable in multiple wearing styles. PortaFi also finds the compact housing naturally suited to a wide range of ears and comfortable for extended listening.

Isolation

89/100

Headphonesty considers isolation good and says foam tips improve it further. PortaFi attributes the effective outside-noise blocking to deep insertion and inward-facing vents, while Tone Deaf Monk likewise reports very good isolation.

Assessments of Build Quality, Usability, and Overall Propositions.

Build Accessories

89/100

The zinc-alloy shells are described as compact, dense, and nicely finished, and one reviewer reports that the cable held up to abuse. Included Spring Tips, a storage pouch, and ear hooks offer practical ownership value, though the supplied tip sizing is not fully comprehensive and reviewers say little about long-term connector durability.

Value for Money

92/100

At roughly $25, reviewers repeatedly call the JIU affordable, easy to recommend, and an impressive entry point for listeners wanting a simple USB-C solution. It is praised for delivering unusually capable staging, comfort, and overall sound quality for the money, even if its leaner bass and occasional treble roughness will not suit every preference.

Reviews & Sources

Professional reviews and sources for this product's Watt'n Potatoes analysis.

Online Reviews & Mentions

YouTube Reviews

Forum Mentions

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Specifications

Model
JIU In-ear Monitors
Housing
Zinc Alloy
Driver
10mm High-performance Dynamic Driver
Diaphragm
Titanium-plated Diaphragm
Coil
0.035mm Ultra-thin - Black CCAW
Magnetic Circuit
N52 Magnetic High-performance Internal Magnetic Circuit
Acoustic Filter
Patented Anti-blocking (Anti-imbalanced) Filter
Sensitivity
110dB/Vrms(@1kHz)
THD
THD@1kHz≤1%
Frequency Response
10Hz -35kHz (IEC61094, Free-field)
Effective Frequency Response
20Hz-20kHz (IEC60318-4, -3dB)

Manufacturer's Description — Moondrop

1. Alloy casting housing 10mm dynamic driver composite cavity structure Nano-crystalline coating composite diaphragm.


2.JIU, the successor of the well-praised entry-level in-ear headphone, CHU.As a new generation of an entry-level killers, CHU has obtained countless positive feedback, while Jiu is an earphone that has been further optimized by digital signal processing through DSP.


3. The diaphragm utilizes PVD (Physical Vapor Deposition) technology, in which titanium metal is deposited on polymer film to form nanometer-sized crystals on its surface layer and then integrally molded.


4. Adopting the Aria's decentralized dynamic structure, the high-performance 10mm composite cavity with high-frequency phased waveguide leverages a N52 Nd magnet internal magnetic circuit and 0.035mm ultra-thin imported CCAW sound coil to obtain high energy conversion efficiency, and deliver outstanding performance with full dynamic range and rich details.


5. Relying on the excellent physical acoustic design and optimized DSP, Jiu produces an incomparable frequency response curve in line with the VDSF Target Response[1].


6. The metal outer cavity is manufactured from alloy materials using melting and injection molding technology, thus creating a stable, precise, and esthetically pleasing cavity that is both durable and reliable.


7. JIU adopts a versatile USB-C port, and it can be easily connected to phones, laptops, or computers to meet a variety of needs.


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Verified Dealers

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Authorized dealers for Moondrop JIU

  • Apos Audio — online and in-store — Oakland, California, United States (website)
  • ARK Audio — online and in-store — Borensberg, Östergötlands län, Sweden (website)
  • Audio 46 — online and in-store — New York, New York, United States (website)
  • Audio Concierge — online and in-store — England, United Kingdom (website)
  • Audio Emotion — online and in-store — Glenrothes, Scotland, United Kingdom (website)
  • Audio Magic - EU — online and in-store — Wola, Województwo mazowieckie, Poland (website)
  • AUDIOPHONICS — in-store — Bordeaux, Nouvelle-Aquitaine, France (website)
  • Bloom Audio — online and in-store — Gibbsboro, New Jersey, United States (website)
  • Elise Audio — online and in-store — Paddington, England, United Kingdom (website)
  • GEEKWILLS — online and in-store — Beijing, Beijing, China (website)

and 13 more verified dealers

Apos Audio logo
ARK Audio logo
Audio 46 logo
Audio Concierge logo
Audio Emotion logo
Audio Magic - EU logo
AUDIOPHONICS logo
Bloom Audio logo
Elise Audio logo
GEEKWILLS logo