Line Diffusers Panels - Set of 126 | 1 Sqft, 2" Thick | 50 Density | Premium Grade | 3D Structure Broadband Sound Absorber - Periodic Groove Structure | BLACK Pyramid 6'x3' Sheet Eco-Friendly Product: Eliminates low frequency

Eco-Friendly Product: Eliminates low frequency standing waves

NRC is Noise Reduction coefficient means it will absorb 70% sound it encounters

High Density and Eco-Friendly - Made from 100% Polyurethane foam

6'x3' of 2" thick acoustical foam and are a great solution for spot treating sound studios

The Professional Rockwool Acoustical Panels are Superior in sound absorption with NRC = 1 providing clearer

Line Diffusers Panels - Set of 126 | 1 Sqft, 2" Thick | 50 Density | Premium Grade | 3D Structure Broadband Sound Absorber - Periodic Groove Structure | BLACK Pyramid 6'x3' Sheet Eco-Friendly Product: Eliminates low frequencySIZE: 12'' X 12'' X 2'' DENSITY : 50kg M3 MATERIAL: Polyurethane REMARKABLE ACOUSTIC PERFORMANCE: Innovative Periodic Groove Structure for Much Better Broadband Absorption Ability High NRC: 0. 75 MULTIPURPOSE: Reverb Control Echo & Standing Wave Cancellation Clarity Improving Noise Reduction , etc. Perfect for recording studio, isolation shield, home theater, office, etc YGM Acoustic Line Diffusers are the great solution for small flutter echo problem