DEMON XR Double Pedal. The Pearl Demon XR drum pedal, developed in collaboration with world-renowned drummer George Kollias, is an extreme gear item that achieves the ultimate smoothness and quickness. This model develops the three advantages (triple threats) of “speed, ” “rebound, ” and “accuracy” to deliver the best performance. The Pearl Demon XR allows drummers to freely control the pedal while playing at high speed and accuracy, expanding the possibilities of musical expression to the limit. This pedal was supervised and tested by George Kollias, who is known worldwide for his ultra-fast pedal work. Extreme Impact Beater (B-350XR). A newly designed beater with an aluminum beater head and a large, flat, hard resin striking surface for a sharp attack and enhanced low range. A direct link that always maintains the best rotational motion while transmitting the power of your footwork as it is, making the linkage between the footboard and beater as smooth as possible. A new low-friction, high-precision bearing based on a skateboard bearing is incorporated into the main shaft to achieve a smooth action with no friction. It can be said to be the hidden heart of a drum pedal.