Sabian HHX Evolution O-Zone Crash. The HHX Evolution Series is endorsed by Dave Weckl. An aggressive crash for powerful attack! The Sabian HHX Evolution Series crash is perforated by 2" holes and delivers an extremely nasty sound with a lot of aggressive bite. HHX combines the best of two worlds, Traditional Tone and Modern Projection. With HHX compromise is not an option. See www.Sabian.com for more information.