You are in no way at all going to over power your speakers with that receiver. Those power numbers are a bit over rated, and your speakers aren't going to get that much power. Besides, you are more likely to damage your speakers by underpowering them than overpowering them. Klipsch speakers are also very efficient, so they don't need as much power as some other speakers, so you are good to go. Just hook them up and enjoy, and don't be afraid to crank it up either.