Auralex 4" Pyramid Studiofoam

4" Pyramids are recommended for larger spaces, rooms with pronounced low-frequency problems or where sonic accuracy is mandatory and stronger absorption is required. Having 4 sides exposed on each pyramid also yields more sound diffusion, which is desirable in some spaces. Generally, 4" Studiofoam Pyramids will yield less overall dryness than 4" Studiofoam Wedges.