Most rooms don’t need acoustical treatment.


Why?  Because acoustical treatments presented are in virtually empty rooms. Unrealistic.

my rooms have furniture and clutter.  These rooms don’t really have a need for treatment.  It’s snake oil, voodoo science.  
So why is accoustical panels gonna help?  No one can answer this, most have no clue.
jumia
Electronics and speakers are at most 50% or less and the other 50% or more is easily the room. But, we seem to have ’know it alls’ like the OP who seem to think the room doesn’t matter. It is kinda funny when guys spend thousands of dollars on power cables and such, but refuse to spend a dime on the room. For instance, if the upholstery on your big couch is leather or something else will have a much bigger impact on the sound than if your power cable cost 40 bucks or 4000 bucks (facepalm!).
Power cords in a stable supply of power seem like snake oil.  Other things are better pursued.
@millercarbon - @jumia has not heard many power cords in even a middling quality audio system.  Sheesh.  Why are there so many posters who don't believe that cabling sounds significantly different?   Don't they have something better to do in their lives?