Oh I have all kinds of acoustic panels, diffusers, absorbers, bass traps. Even on ceiling. You can get a good idea looking at my profile page here under Systems. Slowly but surely, my coverage percentage in my room got pretty high and satisfactory. Everything sounds AND measures (REW) very good.

Every room is different. As much as the GIK people can help remotely by seeing pictures and videos, one has to do this themselves, figure it all out by listening and measuring their room response, and get advice as the project progresses. There are no shortcuts. But the process is enjoyable, especially when the end result is good.

@bshaw :

if i had the option to hang the diffusors

Exactly which diffusers from GIK do you have? Maybe you can post a link. I don’t see how you cannot put them behind your listening chair, on the back wall. About 30-40 inches above floor level. Center.

Here is what I have on the back wall: 

Combination absorption/ diffuser/ bass traps

@riley804 : I was replying to @bshaw , but that’s OK, it sounds like you also have GIK diffusers you cannot put on wall. Below is the GIK diffuser page. Which one (s) of these you have?

@thyname

when i contacted GIK, they wanted pictures of the room so they could get an idea of what to recommend. if i was to put any kind of panel that they suggested on the side walls, it wouldnt be even as there is a window on one side and a panel would hit the light switch, so he suggested the diffusor that has a stand and can be moved around.

https://www.gikacoustics.com/product/2a-alpha-panel-diffusor-absorber/

mine is the black and white one, but its 2’ x 4’.

unless i get creative....these are not meant to be hung on a wall as there is no mounting hardware and would have to think of something.         not saying it couldnt be done.... 

i dont think moving 2 panels is going to change anything to be honest.

Those definitely can be put on wall. And come with all the hardware. I know, I have bought many Alphas. From the very link you posted, under Installation Guide tab:

INSTALLATION GUIDE

All (23″ x 45.5″) Alpha Series Panels come with two sawtooth hangers for easy wall mounting.

You have your choice of orientation. 
 

You will actually have to pay extra to buy the freestanding wood kits. If you lost those sawtooth hangers, they can be bought in any hardware store. Unless you don’t want to hang them, or you are not allowed. That’s another story, totally understandable though