Most rooms don’t need acoustical treatment.

@sandthemall.....
Another ’off no wall in particular’....

sand them all -or- sand the mall? Either makes sense to me, but just obliquely curious....*G* ;)

'asv', for me, is just my variant on AVL (thinking that all caps would be too big of a hint....*L*)

geof3, you are right, I reread the original statement.

Sum all untreated rooms and they average out to have random placements of objects made of random materials.

Ampa style setups need close to nothing. No back wall and tapered side walls and ceiling, no reflection points..

Setting up kitty corner, eliminates a lot of the normal treatment ideas and again the reflection points diminish. Room decay rates are much quicker.

Clutter counts :-) There are ways to reduce the UGLY as$ wall treatments diffusers, dust collecting stuff. Foam is hard to keep clean.

CURTIANS work and look the best to me..

It's easy to tune a room and liven it up just a bit with a curtain pulled open or closed a little more.. No studio looks for me.. 

Regards

"So why is accoustical panels gonna help?"   

Are trying to say :

So, why are acoustical panels going to help ?