Removing such a substantial amount of metal to create these holes reduces the weight of the cymbal and reduces tension in the metal, thereby accelerating its response rate, for faster, fuller crashing. And while AAX crashes are known for their bright, shimmering sound, the holes in the AAX O-Zone Crash introduce a degree of dark agitation to the sound, for a response that is a combination crash and Chinese cymbal.This AAX O-Zone Crash has a bright, shimmering sound with a darker undertone. This is the result of the holes in the cymbal affecting the movement of vibrations through the metal. This model, like the darker sounding HHX Evolution O-Zone, is so responsive as a crash and for crescendos that it can be played by stick, mallet or hand, making it ideal for drummers and percussionists playing any style of music.AAX SeriesPrecise. AAX delivers pure, bright shimmering tones. Like stainless steel, AAX is cool, modern, and extremely efficient. With its streamlined design and sound-shaping Auto-Focus Response feature, AAX is the ultimate breakthrough in modern cymbal making. Tap with your finger or thrash with a stick, Auto-Focus Response maximizes sensitivity, equalizes high and low pitch levels, and purifies sounds by filtering out conflicting overtones. AAX sounds are pure and accurate. Ideal in the studio, ideal onstage. AAX delivers the freedom to sound great in any music.