I haven't decided on power. I was thinking about a 7ch Monoprice Monolith or just rolling with a new AVR and seeing if that did the trick. I had a Denon AVR-x4100 that I liked but I"m not in love with any one brand. I was thinking something similar? I figured if the 4100 could drive the Martin Logan 50xt, SLM XL (x2), ElectroMotion IC (x2), and FX surrounds (x2), then the newer version should be sufficient for a more efficient Klipsch setup. Thoughts?