Overview Reviews Product Description The UV EQ4 Bass series features the same patented UV-cured coating and durable single-ply 10mil film from the UV1 series with the addition of a fixed internal overtone control ring to reduce sustain and focus the tonal response of the drum. Product Videos Custom Field Product Reviews Write a Review Write a Review × EVANS EVANS UV EQ4 Bass Head, 18 Inch Rating * Select Rating 1 star (worst) 2 stars 3 stars (average) 4 stars 5 stars (best) Name Email * Review Subject * Comments *