DIY project QRD 17 (plans from Acoustic Fields)

About the DIY project QRD 17 (plans from Acoustic Fields)

The Acoustic Fields DIY Sound Diffuser QD-17 is a set of construction plans for building a wooden quadratic diffuser based on the prime number 17. The completed diffuser is specified to diffuse sound energy from approximately 225 Hz through 3,450 Hz. The plans include step-by-step assembly instructions with photographs, a tool list, material list, cut sheet, and build drawings. The diffuser uses wells of varying depths derived from a quadratic-residue sequence and is intended for professional or home-studio room treatment. These are plans for a DIY diffuser rather than a factory-assembled acoustic product.