EVANS Emad bass drum heads offers the biggest punch and durability of all the Evans bass drum head range. Featuring a single ply of 10mil, this bass drumhead delivers an enhanced attack, focused tone and plenty of low-end. Tailor your preference of dampening and tone by exchanging the outer foam rings to suit the sound you are looking for. The Evans Emad is one of OXYGEN Music'c best selling drumheads...EVER! OXYGEN Music are proud to stock of a huge range of Evans Drumheads, including this very popular EMAD 24 Inch Clear Bass Drumhead. BD24EMAD. Ask instore for expert advice on choosing and tuning to right drumhead for your sound.