Evans EMAD Resonant Bass Drum Head Black 18 in.

With accentuated low-end response, the EMAD Resonant is constructed using a 7.5-mil black film with a 6.5-mil fixed internal control ring. It comes with an Externally Mounted Adjustable Damping system installed around the 4" offset microphone port that allows the user to manipulate attack, tone and sustain without the need for internal damping.