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Kumitate Lab REF 5-Driver Hybrid Custom In-Ear Monitor

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Kumitate Lab REF 5-Driver Hybrid Custom In-Ear Monitor

  • 5-driver Hybrid (2x Fostex Dynamic Driver (9mm) + 3x BA Driver) custom-fit IEM model

  • Less than 1% THD with the 2x Dynamic Drivers arranged in tandem

  • Mountable Volume knob to control woofer option available

  • Special housing design for Dynamic Driver

  • 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.



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.

KL-REF : Hybrid model of 2x Fostex Dynamic Driver (9mm) + 3x BA Driver

High 2 BA Driver
Mid 1 BA Driver
Low 2 Driver

2 Dynamic Drivers could succeed to create the less THD woofer sound that is usually difficult to create sound with BA driver.

KL-REF has reached to be a result below 1 % THD arranged 2x Dynamic Drivers in tandem.

Option: Mountable Volume knob to control woofer

This model has an option to mount a volume knob that can control massive feeling of a woofer sound.

This option can control to be a wider range of woofer sound that shows a bouncing woofer sound up to the range where does not disturb a sensitive twitter sound.

Please enjoy finding your favorite woofer area with this option.

Special housing design for Dynamic Driver

The housing for 2x Dynamic Drivers is a special design used with 3D Printer.

Low pass filter as a physical structured inner part and a vent resulted in a creation of only Kumitatelab’s special original design.

A vent function works being out of air pressure on Dynamic Drivers when you wear IEM.

it prevents diaphragm deformations and also provides you comfortable music listening atmosphere.  

Technical Specifications

Additional Information

Colour Customisable
Warranty 1 year (local)
Availability Discontinued
Product Type Earphone
Style/Type Custom In-Ear (CIEM)
Driver Configuration 5-Drivers Hybrid (3 Balanced Armature + 2 Dynamic)
Headphone Design Closed-Back
Microphone None
Cable Style Detachable (Customisable, IM, E/LS, others)
Input Connectivity 3.5mm stereo
Cable Length (cm) 120cm
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