Made from high density 6 pound per cubic foot high density fiberglass, these larger 24"x48" absorptive panels have an increased panel surface to maximize absorption. This makes them particularly effective in larger installations and in rooms where the reverberant field and echo is excessive. Broadband Absorbers can be 'butted-up' for complete wall coverage and maximum absorption or spread in an array to leave a sense of 'air' or natural ambiance. The large panel design also lends itself to other installations: To control bass in studio and home theatre, thicker 2" and 3" Broadband Absorbers are combined with Corner or Offset Impalers to create an air cavity in behind the panel. For general office noise, thinner 1" panels are easily flush mounted on the wall surfaces using Surface impalers to attenuate the reverberant field. These same panels offer an effective 'upgrade' for drop ceilings as the 2 foot x 4 foot panel size ideally suits standard T-bare grid layouts. This can be particularly effective in commercial installations such as noisy offices, call centers and for boardrooms that need added sound control. 3 Inch SQ EDG 24X48 BLK 4 pcs per pack from Primacoustic is 100% original and is available at NMK Electronics. Speak to our expert for booking a live demonstration. After sales customer service is an integral part of our business ethic and is taken very seriously.