If you have a nice system why do you really need room treatments?

Treatments consist of corner base traps extending up to the ceiling, a couple absorption panels throughout the room, a 20 x 20 thick wool rug and an assortment of furniture.

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@immatthewj 

Is there a question? You probably do know most people just buy absorption panels and corner base traps and just stick them in their room.  Because everybody else does it.  They already have lots of furniture already in the room and that does enormous improvements to transmission of sound. some chairs and a sofa and a bookcase is extremely helpful to sound. The bookcase serves as a diffuser.

Most people don't need all this acoustical stuff in their room.

When you are sitting in a “modern design” restaurant with bare concrete walls, no baffles or absorption panels and cant hear anyone at the table because if all the noise, is this your ears issue or… 

There is a very good and not too complicated book on room acoustic treatments - “The Master Handbook of Acoustics” by Everest. It explains everything.

when i added acoustic treatment elements, i measured everything with microphone and PC software.

Using dirac, I did acoustical measurements and the original curve versus DSP were very similar.  It got a bit smoother. The original subwoofer curve looked normal.

These measurements were done in a room that had virtually no acoustical treatments other than corner bass traps it was a normal living room with furniture.

I wish I could attached the curve pictures but this forum don't allow photos to be attached I guess.

Would love to know if other people test their rooms before and after doing acoustical panels and how the curve changes.  Lots of the acoustical treatments are voodoo science with results that may not do very much most of the time and actually served to dampen the room sound quality