Auralex Studiofoam Wedges 6-Pack Burgundy

Recommended for medium-to-large areas, such as concert halls, gymnasiums and churches, those rooms with pronounced low-frequency problems and for those rooms where sonic accuracy is mandatory and maximum absorption is required. 4" Studiofoam provides excellent low-frequency control (3x that of 2" Studiofoam) and can make rooms very dry. In some instances, using 4" on your walls can negate the need for significant bass trapping.

Recommended for medium to large areas like concert halls, gymnasiums & churches, those rooms with pronounced low frequency problems and for those rooms where sonic accuracy is mandatory & maximum absorption is required 4 inch Studiofoam provides excellent low frequency control (3X that of 2 inch Studiofoam) and can make rooms very dry In some instances, using 4 inch on your walls can negate the need for significant bass trapping