THE NEXT LOGICAL EVOLUTION OF THE CYMBAL. SURGE Cymbal Pack with Choke contains a full setup of SURGE Cymbals the world's first cymbals with built-in electronic triggers. Made from genuine cymbal brass-alloy SURGE Cymbals have centuries of cymbal craftsmanship in their DNA cross-bred with Alesis' decades of experience in electronic triggering technology. SURGE Cymbals are the world's most realistic-looking accurately responding and most importantly natural-feeling cymbal triggers i