Description When Porous Absorber Bass Traps here no worries of room Acoustic. They reason they are so adaptable is they work well across the entire frequency spectrum. The triangular corner bass traps has the advantage of more mass which helps effectively to tam low end frequencies. Porous Absorber are commonly referred to as Velocity Based Absorber. It work by converting sound energy into heat, and then by absorbing and dissipating the heat. It is also called as broadband absorber. It is commonly suggested as the go to absorber for studios, home theaters,  control and listening rooms. Package Dimensions: 10 x 10 x 10 cm Size: Set of 2 pcs Item Weight: 700g