Echobusters "to gap from wall' or not


I found 6 echobuster panels here on audiogon ( 2' by 4' by 2")and want to hang them mostly on my backwall behind the couch.

The room is 15.5' (widest) by 27' (couch in nook, closets on end make it 12.5 in narrowest area.

Near field setup with back of couch against wall (early cancelations too short delay to notice?)

anyway I have a small amount of echo to tame and was wondering if I should gap the panels from the wall with little wood blocks (2") to achieve slightly lower freq absorbtion and even filtering "from the back side"

does anyone have any suggestions on this?
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Showing 2 responses by audiotomb

Hello Sean

I've read Jon Risch's DIY 8" thick fiberglazz absorption panel instructions. I just am not one that is able to get burlap or whatever to behave that well. Plus it wouldn't really work with my room decor.

Tom
THanks Octopus

tell me more

I was thinking about putting circular styrofoam as the offsets blocks (predrilled)and then putting pillow stuffing or something behind it.

I didn't do the Risch thing because I am terrible at anchoring heavy stuff to the wall - any suggestions???

thanks
TOm