Radius-ed Mini QRDs w/ Absorption

August 18, 2015By HendrikAcoustic Treatment, Installs & Custom, Products No Comments

Another treatment option is this hybrid absorber / polycylindrical diffuser. A QRD pattern is cut into softwood fir 2x stock (similar to RPG’s Flutter-Free) and then arranged on a large radius similar to a large polycylindrical diffuser. Air spaces are left between the mini-QRDs to allow low frequencies to pass while scattering mids and higher frequencies. The … Read More