Warm, explosive response is fast and shimmering for increased projection and cut. A best-selling Core model, the Sabian 18" HHX Evolution Crash is a Killer Crash! Until HHX, it was impossible to project darkness. But the dark, simmering sound, agitated bite and "Tone Projection" design of HHX makes this series more effective than others. Other cymbals may generate darkness, but HHX stirs up more simmering heat, more musical dirt, more of what drummers want to hear