Auralex Studiofoam Wedge 4-Inch is recommended for medium to large areas like concert halls, gymnasiums & churches, rooms with pronounced low-frequenc... More info »
Auralex Studiofoam Wedge 3-Inch is twice as absorbent as 2-inch wedges at 125Hz, and can even do many of the same things 4-inch wedges can do (especia... More info »
Maximum broadband absorption: Absorption coefficient of 0.81 @ 125 Hz; maximum NRC = 1.00 to 1.05 depending on installation Varying thickness: Foam th... More info »