I’m thinking about replacing my surrounds. You can see my current Polk FXi5's in the picture below. These are already backed by Outlaw 200W monoblocks. I would need something that can mount in the same spot. One of my problems is that the FXI5's already match all of my other Polk speakers (rti12, rti8, csi5). I’m looking for a better speaker but would like to keep it under $1000. As time goes on, I would prefer to start swapping the other speakers to that new brand. Any ideas?