After KOIDE CYMBAL with cooperations from groups of researchers from Japanese metal company, Japanese local government and University of Fukui had achieved to manufacture their own cymbal blanks, they registered their first 2 patents with their unique cymbal metal materials, called B21ZT and B23ZT. The ZT stands for "zirconium" and "titanium". By adding those extra metal elements in their bronze, they can manipulate the sound of cymbals, making it more clean, bright, sweet, etc. and also be able to manipulate the length of sustains.
ABSOLUTE series is using B21ZT material. It is designed to emphasize the stick definition and less wash or sustain for better ride control. It sounds clean and powerful but it's not PING sound as it sounds deeper than PING. The ride plays reliable and it never gets in your way of the focus of the music and playing.