Those are some good speakers, and frankly they are good enough that they will reward you significantly more if you drive them with something better than a mass market AVR. If I were you, I'd focus the majority of my future audio dollars on a new preamp/amp or integrated amp. Toward that end, and since you don't currently have expensive speaker cables, I'd recommend getting a short run of decent speaker cable and cut it into two short lengths to use as jumpers -- just strip the ends and poke them through the holes in your speaker binding posts and tighten them down. Very cheap and easy, and they'll sound better than those awful stock jumpers. Hope this helps, and congrats on the speakers.