The Xcon is in a different class than the Q. The Q is in the same class with the Icon, among other subs. If you want some thing that's Fi related in the class of the xcon, find a dealer and, get a Ascendant Audio Havok. I have an Icon and love it, truth be told I would of bought a Q and a Cadence amp if there hadn't of been a package deal with an Icon and a Sundown amp. If I had the $ to spend out of the two, I'd pick the Xcon, your going to have to upgrade your electrical. You'll be happy either way.