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
Evans EMAD Onyx Bass Batter Drum Head 18 in. | Guitar Center
Evans EMAD Clear 22" Batter Kick Drum Head - TJ's Music