Evans 13" Genera RES Clear Drum Head Genera Resonant Tom Reso Drumhead EVANS Genera Resonant Drum Head, 6 Inch EVANS Clear Genera Resonant drumheads produce a full, round sustain with strong upper-mids that increase projection without sacrificing sustain. These 10mil single ply drumheads are ideal for enhancing tone when combined with a 2-ply batter head. EVANS Level 360 Technology is incorporated for ease of tuning, extended pitch range, and optimum quality of sound. Read More Single resonant drum head made using a single ply of 10mil film A single ply offers an open and expressive sound Ideal for enhancing tone when combined with a 2-ply batter head Exclusive Level 360 Technology collar design ensures proper contact between drum head and drum shell