Well, ConstTraveler, I sure hope there are no downsides to that combo, because that’s precisely what I’m thinking of pairing to form the heart of a new system I’m planning. The Audion’s wattage seems in line with Clayton’s recommendations, the available reviews seem almost fawning over the Audions, and their 30A of current on tap per channel should be plenty for dynamic range, especially since the bass is self-powered.
I’m very hopeful an X5/X3 owner soon pairs their speakers with Audions and reports their results in this forum.
Best of Luck to you!