• Evans Hydraulic drumheads are the only heads on the market with a thin layer of oil between two plies of film to suppress unwanted overtones. • Known for a fat, deep, short sound reminiscent of early rock n roll. • Hydraulics’ unique translucent frost coating delivers additional warmth, focus, and depth. | • All Evans drumheads feature Level 360 Technology to provide ease of tuning, extended pitch range, and optimum quality of sound. • All Evans drumheads are designed, engineered, and manufactured in the USA. |