Diffuser Choice-Acoustics Forum-Acoustic Fields Forum

Hi Dennis,
I’ll be moving into a new home in the fall which has a room (18’L x 13’4”W x 8’H) that will be a two-channel listening room . I’ve been devouring your videos trying to learn how to set up and treat the room. Thank you for all the helpful information; it’s gotten me very excited about this move. I think I have a general understanding of the absorption needs for the side walls but I’m uncertain about diffusion on the front and rear walls. Unfortunately I don’t have any photos of the space yet but I anticipate the listening position and speaker placement to be approximately 6’ from their respective walls. Would P-13 be the appropriate diffuser for a room with this set-up? How many would you recommend for the front and rear walls? I’m at early planning stages so I’m not sure of my ultimate budget. If, for example, P-13 diffusers are outside my budget, would smaller diffusers (e.g. P-7) be helpful or would they violate the “do no harm” rule?
Thanks