48 Pack (12x12x3)" Pyramid Foam Acoustic Panel for Soundproofing Studio/Home Theater

48 Pack of (12x12x3) Inch Acoustical Pyramid Foam for Soundproofing Studio/Home Theater Model 48P-12x12x3 Capable of soundproofing any size room, 3 inch pyramid foam is fantastic all-around sound absorbing foam. When used in conjunction with corner bass absorbers and male/female broadband absorbers, it performs even better.   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 = 3 Inches Overall NRC: 0.50 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 0.43 0.46 0.54 0.35 2" Pyramid 0.19 0.22 0.45 0.55 0.60 0.76 0.45 3" Pyramid