Evans EQ1 Resonant White Head. Warm with focus, depth, and ample sustain, the EQ1 resonant head combines a 7mil solid front, internal overtone control ring, and dry vents to produce a round and balanced sound. Tuned low, it produces an absolutely cavernous rumble that is microphone friendly, but with an earthy and organic ambiance. The coated version delivers additional warmth, focus, and depth.