![Amazon.com: BXI Wood Sound Diffuser - 24 X 24 X 2.8 Inches Thick Acoustic Diffusion Panels Add Listening Room Musical Liveliness, Quadratic Residue Diffusor for Wall and Ceiling Acoustical Treatment (2D) : Musical Instruments Amazon.com: BXI Wood Sound Diffuser - 24 X 24 X 2.8 Inches Thick Acoustic Diffusion Panels Add Listening Room Musical Liveliness, Quadratic Residue Diffusor for Wall and Ceiling Acoustical Treatment (2D) : Musical Instruments](https://m.media-amazon.com/images/I/81lHX9Myw8L.jpg)
Amazon.com: BXI Wood Sound Diffuser - 24 X 24 X 2.8 Inches Thick Acoustic Diffusion Panels Add Listening Room Musical Liveliness, Quadratic Residue Diffusor for Wall and Ceiling Acoustical Treatment (2D) : Musical Instruments
![Quadratic Acoustic Diffuser Panel, QRD Sound Diffusion, Sonic Studio Treatment 13 x 46 Audiophile | Reverb Quadratic Acoustic Diffuser Panel, QRD Sound Diffusion, Sonic Studio Treatment 13 x 46 Audiophile | Reverb](https://images.reverb.com/image/upload/s--kPDSzgwv--/a_0/f_auto,t_large/v1685729742/et6t5w4xiskue6undsvi.jpg)
Quadratic Acoustic Diffuser Panel, QRD Sound Diffusion, Sonic Studio Treatment 13 x 46 Audiophile | Reverb
![͑ a ͒ One period of a quadratic residue diffuser ͑ QRD ͒ of well width... | Download Scientific Diagram ͑ a ͒ One period of a quadratic residue diffuser ͑ QRD ͒ of well width... | Download Scientific Diagram](https://www.researchgate.net/publication/5455689/figure/fig1/AS:280760452960260@1443949916843/a-One-period-of-a-quadratic-residue-diffuser-QRD-of-well-width-w-and-depth-of-the.png)