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Astell & Kern Michelle Limited In Ear Monitors (Universal IEM)

US Sales Only at Moon Audio

In Stock & Ready to Ship! Michelle Limited, a special edition product produced in Korea, is the result of a dedicated collaboration between Astell&Kern, a universally respected audio technology company, and Jerry Harvey Audio, an industry leader in customized earphones.

Expanding beyond the existing Siren series, which is loved by audiophiles worldwide, Michelle Limited lets more price-conscious listeners experience the rich, vivid sounds Astell&Kern and Jerry Harvey Audio are known for.

Michelle Limited features freqphase technology by Jerry Harvey Audio, and an adopted 3-way, 3-driver to deliver all ranges of sound.

Market-proven technologies from Astell&Kern coupled with the experience of Jerry Harvey Audio, a trailblazer in the custom earphones industry, created Michelle Limited to connect audiophiles everywhere.

Michelle Technology

Astell&Kern Michelle Siren Series Freqphase
Jerry Harvey Audio has developed a whole new Balanced Armature Driver to offer reference quality IEMs for mastering and mixing works. The high-range drivers are designed to deliver everything with minimum distortion, the ultimate mid driver offers perfect, flat sound from 10Hz to 5kHz. 

The bass driver was designed for an even steeper low-pass effect with no distortion.
Freqphase™ Time | Phase Waveguide
Most Multiple Driver IEM's suffer from phase and timing issues. Low, Mid, and High drivers all have different impulse times. The higher it is, the faster the impulse time of the BA Driver. The lower it is, the slower the response speed. This causes improper arrival times and Phase shifts.

The "Michelle" applies Jerry Harvey Audio's patented "Freqphase" technology, which uses precisely cut tube lengths for each driver to minimize the phase shift of each frequency. This allows for the High, Mid, and Low drivers to be aligned to 1/100ms for the most ideal phase curve. It ensures the correct time alignment and phase of all drivers resulting the most accurate music reproduction in the industry.

3Way 3BA Drivers

Michelle’s balanced amateur driver boasts a much smaller size and amazing efficiency compared to conventional dynamic drivers. 
Enjoy the full range of sonic details, thanks to the sophisticated 3 balanced amateur driver design, fused with Freqphase technology.
Exploded view of structure
Astell&Kern Michelle Structure View 

Ergonomic Shell design with 3D printing technology

A proper "seal" is essential to the the performance of any universal IEM.

The design of the "Michelle" represents an exhaustive research and development project on the ergonomics of IEM fit.
The new state of the art 3D printed shell gives "Michelle" an advanced fit that represents a significant breakthrough on IEM shell shape and the angle of the nozzle, resulting in unprecedented comfort and acoustic seal.

The "Michelle's" performance now shares the performance characteristics of IEMs costing 3 times as much.
Astell&Kern Michelle Ergonomic Shell Design 

Silver Tinsel Cable with detachable 2pin connector

The cable used in the Michelle is not common copper. Instead, it is a copper cable plated with silver. 
The cable is manufactured by first compressing the silver plated copper wire, which is then flattened and rolled into a steady interval that is then used to wrap around the Kevlar. This newly developed cable has astounding tensile strength and delivers the full dynamic range of music. There are two different types of cables provided - a 3.5mm Unbalanced and 2.5mm Balanced cable. 

Conventional straight cables do not handle the frequent bending of cables and often short out. The intertwined cable disperses the stress to the cable and offers better resilience. It's also easier to wear around the outer ears as the cable shape can be easily adjusted for the best fit.
Astell&Kern Michelle Silver Tinsel Cable Kevlar


The brand name of Aramid fiber that DuPont USA manufactured.

It is very lightweight and more durable than nylon, and has the advantage of being very tough. Because it is made of light weight organic polymers such as carbon, nitrogen and hydrogen, allowing it to be 5 times more stronger than steel. Kevlar is particularly strong against friction and is commonly used for body armor and aircraft tires due to its excellent shock absorption.

Product Reviews

Newly developed custom BA driver is installed in 3 way configuration (high frequency x 1, medium range x 1, low frequency x 1)
Adopted unique tube wave guide "freqphase technology"
Custom IEM 2 pin type adopted, newly developed earphone cable
Ergonomic Shell design with cutting-edge 3D printing technology
3BA (Balanced Armature) Drivers in each IEM
Hand Crafted IEM
Detachable 2Pin Connector Cable
Twist with Silver Tinsel Cable and Snug Fit
Type Universal fit IEM
Driver Unit   3way 3Drivers (High, Mid, Low) [3BA per side]
Impedance   18 ohm
Noise Isolation   -26dB
Sound Technology   Freqphase™ Time | Phase Waveguide
Carrying Case and Wax Tool
Additional 2.5mm 4pole Balanced Cable
3 Sizes of silicon ear tips(S,M,L)

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