I’m using 6 Gik 244 panels and then I have 10 other panels, 2’x4’ that Im not sure of the brand. I also removed 2 lights and 2 glass tables. You could actually make the lights ring just by clapping your hands. I also put up a bunch of curtains in order to cover a window and a big portion of the wall. I’ve got every wall treated now except for the ceiling. I’ve always had 4 gik 244 panels but that wasn’t nearly enough.
The imaging and bass response just goes through the roof when you get your room dialed!