The new marching tenor EC2S was designed specifically for use with marching quads/tenors. The specially designed hoop profile was engineered to withstand the tension and durability requirements of the marching activity. Sound Shaping Technology controls overtones and allows the fundamental pitch to cut through. This focused sound is becoming increasingly popular in both indoor and outdoor marching environments. Two identical plies of 7mil film provide pronounced attack, durability and optimal resonance that projects well on the field.