Audio diffuser

@knighttodd - perhaps we understand the naming of the walls a little differently?
The front wall to me, is the wall I am facing when listening to music coming out of my speakers. The back wall is behind me, which sees the most on axis first reflection from the loudspeakers. The ceiling and floor gets a fraction of the energies the wall behind me sees. As my speakers are toed in, these waves will bounce back and forth between both the front and back walls from what I’ve read.

From what my wife and I already can hear, diffusion on the front wall behind the speakers in the working frequency range of the diffusers I have built have somehow made the bass sound more defined and faster.

I do have currently two normal diffusers that are 17" deep based upon prime number 17 and there will be four of them, replacing the strict higher frequency absorption I did have in place behind the speakers on the front wall respective to listening position. I intend on building diaphramatic carbon low frequency absorbers as well, underneath and on top of the diffusers as well as the corners. So that not just in the corners, but the top edge and bottom edges of the front and back walls have low frequency absorption.

I have to purchase a measurement system anyway, I’m currently investigating which version of Clio for the task. I’m working on flutter echo first (and yes doing it this way is a compromise, based upon both limited room size and budget) then I will have to read a whole lot more and implement some brain cells on the math to get the room sorted.

I will post results in my thread. Please do the same Knighttodd :-)

@ghdprentice and @rocray - yes, I will report once I’ve done what @tomic601 said, cut trail…try it out…

@knighttodd - you may not have the tools right now, but a straight edge and a jigsaw or a power saw and straight edge, will get timber cut up cheaply. Some inexpensive clamps from your local hardware and tightbond glue, screws or nails and you're in business!

Obviously, only if this experiment leaves you wanting to try something else.

ATS Acoustics have some affordable diffuser products. I recently bought a custom 62” x 17” x 2” fire rated absorber from them - order to delivery was < 10 days… No business relationship, just happy customer….

@rixthetrick we are on the same page. Front wall behind the speakers 

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With the trays it would be about 54 inches tall and 36 inches wide behind each speaker.

What is the size and layout of your room? Is it dedicated for listening and where is your listening position? 

I think you have a great plan. How did you determine the size of the diffusion panels? I started with 2 panels behind speakers and i used absorbion in both corners. My room isn't very wide and I found that one panel between the speakers worked better.