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Diffuser Choice
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Posts: 2
January 6, 2021 - 8:00 am

1

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

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Posts: 644
January 7, 2021 - 12:47 pm
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2

You can use a 13 on both front and rear walls. Start the diffusion sequence across the total wall beginning at 24″ above the floor. Make sure you have your low, middle, and high frequencies addressed properly before introducing diffusion. Diffusion will make your room sound worse if these issues are not addressed properly.

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Posts: 2
January 7, 2021 - 2:01 pm

3

Thank you Dennis.

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Posts: 3
November 12, 2021 - 1:16 am

4

Hi Dennis, I want to make the acoustic arrangement of my room. I’m planning to apply 12cm thick 120 density rockwool to the corners and side walls. But what should I do to the rear vertical wall and windshield area? Or is there another option you can suggest? Room dimensions: 292 cm L X 300 cm W X 221 cm H

Note: I can send you pictures of my room if you want.

Thanks, best regards.

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Posts: 644
November 12, 2021 - 5:30 am
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5

The corners of your room are not your problem. The entire wall is producing the issues. The definition of an axail mode is unwanted pressure between two parallel walls not two parallel corners. Building insulation is not a low frequency absorption technology.

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