48 Pack (12x12x2)" Pyramid Foam Acoustic Panel for Soundproofing Studio/Home Theater

48 Pack of (12x12x2) Inch Acoustical Pyramid Foam for Soundproofing Studio/Home Theater Model 48P-12x12x2 2 inch pyramid foam is effective against standing waves and flutter echoes in most small-to-medium sized rooms like vocal booths, control rooms and studios. It also functions as a full-frequency bandwidth absorber for any size room when used in conjunction with corner bass absorbers and male/female broadband absorbers.   The 48 packs of pyramid foam are available in the following colors:  Charcoal, Red, Orange, Rosy Beige, Brown, Burgundy, Blue, Purple, Plum, Teal, Kelly Green, and Forest Green. Specifications Quantity = 48 Pieces Size = (12 x 12) Inch Thickness = 2 Inches Overall NRC: 0.45 Flammability Test Results Class A 25 Flame Spread Index 250 Smoke Spread Index   The overall NRC rating is the calculated average of frequencies 250Hz, 500Hz, 1000Hz and 2000Hz. > 125 Hz 250 Hz 500 Hz 1000 Hz 2000 Hz 4000 Hz Overall 1" Pyramid 0.14 0.13 0.31 0.