Acoustic diffuser 46 x 19 x 10.75 QR Diffusion panel studio treatment Quadratic

These are 7 well QRD diffusers, Handmade in my shop here in rural Indiana. The over all dimensions are 46 x 19 x 11 1/8" inches, the maximum well depth is 10.75 inches, and each well is 2.25 inches wide. Weight is around 42 lbs. These are designed to diffuse frequencies from 360hz to 3000hz (and should scatter frequencies as low as 180 hz). minimum distance to seated position is about 70 inches These are a useful tool in your arsenal for acoustic treatment. They can help a small room feel larger and tame flutter echo's without killing all the natural ambience in the room, and these larger units can reach down low enough to help with the low mids.  Unlike the smaller units which have a solid wood fin, these, the largest unit we make, require a plywood fin. This does not affect the performance of the diffuser at all, but as you can see in the photos it does affect the aesthetics, as you can see the laminations of the plywood along the front edge.  these can be mounted to the wall (no mou