My apologies but I am obsessing with the power to my RTiA9's. I have an Emotiva XPA-5 running my A9's, Csi A6 and the Fxi A6's. 200 WPC seemed like a solid number when I purchased the A9's knowing they are power hungry, however I have done a lot of research and it seems as though they may be a little underpowered... I am in no way dissatisfied with the way they sound, but I only have two ears. Those of you that have experienced the same thing please chime in.