Auralex CornerFills are sections of flat-cut Studiofoam corner acoustic absorbers that are beneficial in two ways. Aesthetically, they give you smooth, clean edges against which to butt your acoustic wall treatments and acoustic foam bass traps for a more professional appearance. Acoustically, they smooth out the excess low frequency energy that congregates in room corners.

12" foam CornerFill Cubes are a terrific way to improve acoustic sound and finish out trihedral corners where three LENRD Bass Traps come together. Great noise insulation material for gyms and larger rooms.