Evans EQ3 Resonant Smooth White Bass Drum Head, 22 Inch - Walmart.com
A Demonstration of the Evans EMAD Bass Batter Head - YouTube
Evans Emad Bass Drum Head - 24" | eBay
Evans EMAD Resonant Bass Drum Head Black 22 in. | Guitar Center
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