Rotel amps go quite nicely with Klipsch speakers. I use a rb991 on my Klipsch Epics. 200 watts per side at 8 ohms & 330 watts at 4 ohms. If you find a good deal on the rotel 1090, you will have 380 watts per side. That should be enough juice for your RF7's which I have heard dip below 3 ohms at times. Thats why your reciever can't handle them.
Happy Hunting,
Happy Hunting,