
According to this video , you have to choose a diffuser by counting the distance from listening position to the unit. I would add another question – if “elchamaco” wants to use diffusion on rear and front walls, can he use diffusers with different prime numbers? For example, if he would sit 6feet from rear wall = use P-13 https://www.acousticfields.com…..it-qrd-13/ for rear and P-23 for front to cover more frequencies??
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