Tough call. The Axioms look pretty sensitive according to their specs. I guess it really depends on how large of a room you have, and how loud you want to listen? I have an HK AVR125 driving some Klipsch towers in a 2 channel setup in a 12'x10'x8' room, and it drives them to ear splitting levels. The Klipsch are 95db though.
Just to be on the safe side, I might look at a more powerful receiver if you're looking to run 5 channels off your AVR. Then again, if you're getting such a good deal on the 135, you might want to try it out. You can always sell it and make your money back.