For over 60 years, Evans has been an innovator in drumhead manufacturing and design. As the creator of the first synthetic drumhead and other revolutionary products such as EMAD, Hydraulics, and the UV1 series, Evans drumheads are designed with the intent of solving problems for drummers. Regarded for high quality and consistency all UNO drumheads are designed by Evans in the USA .
UBD22EQ4 drumheads designed by Evans™ features a single ply of 10mil film. A fixed internal overtone control ring focuses the tonal response of the drum.