Fostex, "PM641", 3-way monitor speakers driven by independent amplifier for each unit

"PM641", in 3-way bass reflex method, 
to drive dedicated designed 16cm woofer / 10cm midrange / 19mm tweeter
 by amplifier of each independent rating output 50W/18W/18W 
Adopted a Kevlar to a diaphragm of woofer and mid-range to enhance the strength
 by Fostex own technology to keep a moderate internal loss.

 Adopted UFLC Soft Dome to tweeter diaphragm. Playback frequency band 55Hz - 25kHz.