Question: Sound Treatment behind the Listener?

People often seek to apply a solution when they don't know what the problem is. Diffusion and absorption each help resolve different issues applying the wrong one makes them worse. 

@bdp24 

Careful.

Google will lead one to AN answer.

Probably a lot more than one.

Got a reply from GIK. I need more info.

"OK, yeah that's a fair amount of space to work with. It will really come down to tolerance of thick panels and of course budget. If you can fill the entire wall with sound blocks that will work very well but that's a bit of a space commitment. 

If not getting Alpha 6As for that wall will help quite a bit still, and take up less space. 

We can also mix things up a bit, using Range Limited bass traps low near the floor and high near the ceiling, with the Diffusors (Alphas or others) in the middle at ear level."

ozzy

@ozzy  makes sense I think. You have a decent size room so they’re recommending abfusors.
FWIW, for my room, which is smaller, Mike recommended absorbers on the sides for early reflections and tri traps with range limiter in corners behind speakers. 

Thanks,

I'm not sure how many of the Alpha 6a's would need to be acquired. 3 of them with shipping is $763.

ozzy