Xi:
How big is your room? Be very careful not to OVER treat it! I used 15 of Michael Green's Pressure Zone controllers in solid cherry back at the old room. The old room was horrible!
My new room is smaller, and more rectangular with NOTHING in it but the system, and I can tell just how much ONE PZC takes away from the music. It's like they absorb a little too much for me. So, I took them all down, and left up only the corner ones.
Much better.
Treatments can help, but they can quickly lead down the slippery slope to a dull, lifeless sounding room. But then again, some folks like that. .
Just don't assume that more, or bigger is better. My only advice. .
B