EMAD Coated bass drumheads balance power, punch, and low end, while letting you hone your tone with EMAD. EMAD heads feature a single ply of 10mil film, complete with EMAD foam rings to adjust the head’s attack, focus, and sustain. Sonically, this coated bass drumhead has a balanced attack, very short sustain, and moderate tone. This coated head also features Level 360 Technology.