Evans EMAD Clear Bass Drum Batter Head - 18 inch | Sweetwater
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
EMAD2 Bass Drumhead | Evans Drumheads | D'Addario
Amazon.com: Evans EMAD Clear Bass Drum Head - 22 Inch : Musical Instruments
Evans EMAD Heavyweight - Bass Drum Head Review - YouTube