Evans Drum Head EMAD Batter Coated BD18EMADCW 18"

"Evans™ EMAD™ series features a single ply of 10mil film providing an ideal balance of punch, power and low-end. The unparalleled industry standard Externally Mounted Adjustable Damping (EMAD) system allows the player to adjust attack and focus. The EMAD employs an externally mounted adjustable damping system with two interchangeable damping rings that allow the player to adjust attack and focus. On an empty drum and tuned high, the EMAD delivers a centered pitch that reinforces the bass line."