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Kumitate Lab Lakh 6-Driver Custom In-Ear Monitor

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Kumitate Lab Lakh 6-Driver Custom In-Ear Monitor

  • 6-driver BA custom-fit IEM model

  • Sound signature that focuses on the outline and depth of the sound image

  • Low distortion ratio of each band creates immersive feeling

  • Equipped with "VESPER" module

  • Equipped with pressure-discharge mechanism

  • Made in Japan

Note: Kumitate Lab CIEM orders will require a build time of at least 6 weeks. If you are unable to drop by for a ear impressions session, or if you're ordering from overseas, please see the instructions on this page.


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USEFUL INFORMATION for ordering Kumitate Lab Custom Monitors (Japan)
>> Kumitate Lab Design Book (2017-2018)
>> Kumitate Lab Colour & Faceplate Option Samples
>> Kumitate Lab CIEM Gallery

- Due to the extremely high demand worldwide and Kumitate Lab's limited production, please kindly allow at least 6-8 weeks for the completion of every Kumitate Lab CIEM order.

A model pursuing the outline of the sound and the depth of the sound image that carries original technology and listens as it listens

In order to enhance the immersive feeling, smooth connection and low distortion ratio of each band are realized.

Equipped with "VESPER" module

The back vent which is often found in drivers for low frequencies weakened the regulation of diaphragm operation and achieved high efficiency, however, large distortion was a bottleneck. 
On the other hand, recent custom IEM realizes a low distortion factor by installing multiple drivers for low frequencies, but it can lead to a problem that it can not be implemented depending on the price rise or the shape of the ear. 
Therefore, we developed a technology "VESPER" that keeps the amplitude symmetry by optimizing the back vent of low frequency drivers, preventing excessive amplitude, and modularized it. 
To manufacture the module, we use a 3D printer and prepare an appropriate filter inside, greatly reducing the distortion of low-frequency drivers.

Equipped with pressure-discharge mechanism

When inserting the custom IEM, the air in the ear canal is compressed, so pressure is applied to the eardrum and the diaphragm.
KL-REF developed and installed a pressure-discharge mechanism to suppress the influence on this dynamic driver due to this pressure. 
We received the user feedback that this pressure-discharge mechanism is effective even when it is in normal use or when the atmospheric pressure changes significantly, so we designed a new module for the BA driver and installed it in this model as well. 
In this model, we are greatly reducing ear clogging feeling and oppressive feeling that I feel when wearing earbuds.

Driver configuration

High 2 BA Driver
Mid 2 BA Driver
Low 2 BA Driver
Technical Specifications

Additional Information

Colour Customisable
Warranty 1 year (local)
Availability Available
Product Type Earphone
Style/Type Custom In-Ear (CIEM)
Driver Configuration 6-Drivers (Balanced Armature)
Headphone Design Closed-Back
Microphone None
Cable Style Detachable (Customisable, IM, E/LS, others)
Input Connectivity 3.5mm stereo
Cable Length (cm) 120cm
User Reviews