Remo Powerstroke X Coated. Powerstroke X snare drumheads are constructed with a coated single-ply 14-mil polyester film with a 2-mil inlay ring for easy tunability and overtone control. PX heads have great durability, attack, and volume for contemporary rock, funk and R&B applications. Tonally, the Powerstroke X snare heads are perfect medium between the Coated and the Emperor X.