Pearl P932 Longboard Double Bass Drum Pedal with Sprocketless Double, Chrome. Perfect Circle Cam w/ Removable Eliminator-style Eccentric Cam. Demon Style Power Shifter Function Longboard. Dual Surface Beater w/ Control Core. Infinitely Adjustable Beater Angle. The Demonator is a single-chain drive pedal, equipped with a Demon Style Power shifter long-footboard. An interchangeable cam US Pat. #6172291 and infinitely adjustable beater angle allow you to customize the pedal to your preferred feel and power. #7754953 and Control Core Beater US Pat. #7626108 give the finishing touches to this amazingly versatile pedal. The Demonator single pedal is included in Pearl’s new 930 and 830 Hardware Packs.