I currently have cheap Infinity front and center speakers, and Orb Mod1's for the back surround sound speakers. We mostly watch movies and stream Pandora for music. I was just about ready to buy Orb Mod2 for R/L/C, and the Orb subwoofer to upgrade my system. The room is large (30x20x11) although the main TV area is about 15x15x11. I'm wondering of the Orbs are big' enough for a room this size. I started looking at Polk RTi A3 + Polk Center and sub as an option. Any advice or opinions on Orbs vs Polk, or other options around $1000 for R/L/C and sub would be appreciated!