Evans MX2 Black Marching Bass Drum Head Black 30 in.

The two-ply (7.5mil each) MX2 Marching Bass head is equipped with the same unique tone damping system as the MX1...enhancing articulation and focusing the low-end. The second ply adds focus and attack, while making it the most durable bass head available.You may also like Evans REMAD Resonant Bass Drum Head, 22 Inch.