400EX Monitor Speaker System
born in Japan with a sophisticated design for near-field monitoring
400EX, is a new active speaker system with very unique technology produced by Koane-sha staff members with years of
experiences in professional recording. 400EX features cocoon-like enclosure which enables transmission of sound waves
iwithout any stress so that your sound control room turns into a sound stage.
Ko-On-sha introduces its own 4D system*, which makes 400EX free from distortion. 4D system needs an enclosure of
monocoque structure, which is made of special aluminum alloy that eliminates resonance and standing wave and plays a
role as magnetic shield. Its heavy shell supports each driver to perform at its full potential.
4D system makes 400EX reproduce every nuance in recording and gives a broad listening field. Its 3-way drivers are tuned
accurately to perform the note in the middle of music staff to be flat in response over entire range thanks to the
drivers’ convex diaphragms and parabolic cavity behind the drivers .
*4D stands for Direct Diffusion Dome Device System (TM) and also means four dimensions which consist of space and
time.

Specifications | ||
Type: | Passive monitor with 4D system of 3-way drivers | |
Crossover Freq: | 600Hz & 6kHz | |
Drive Units: | Woofer of 6.5”, Squawker of 2”, Tweeter of 3/4” | |
Sensitivity: | 86dB | |
Impedance: | 6 Ohms | |
Handling Power: | 200 Watts | |
Freq response: | 35Hz-25kHz | |
Dimensions: | H 420mm, W 300mm, D 400mm | |
Weight: | 17.0kg/pc. |
Manufactured by: KO-ON-Sha LLC
Exported by: SIBATECH, Inc. - Tokyo, Japan
