6" marching drum head with a 7mil and 7.5mil film combinationOpposing film combination provides enhanced attack and projectionSound Shaping Technology (SST™) controls resonance opposite the playing zonePlaying zones are depicted by the clear, unprinted portion of the drum headAdvanced hoop design prevents film pull-outAll Evans drum heads are designed, engineered and manufactured in the USA
Evans System Blue marching tenor drum heads feature a gradient of Sound Shaping Technology (SST) to control resonance opposite the playing zone. With a 7mil and 7.5mil film combination, the System Blue tenor drum head offers enhanced attack with increased durability. Evans System Blue tenor series was developed with the DCI World Championship winning corps the Blue Devils. Featuring a unique film combination and sound control technique, the System Blue series offers enhanced attack, tonal clarity and projection with increased durability and tuning stability.