Evans EMAD Clear Bass Drum Batter Head - 22 inch | Sweetwater
Evans 26" EMAD Calftone Bass Drum – Thomann United States
Amazon.com: Evans EMAD System Pack, 22” (2pc) – Includes Batter Bass Drumhead and Resonant Drumhead -Externally Mounted Adjustable Damping System Allows Player to Adjust Attack and Focus Without Removing Drumhead : Everything Else