I've been using the Exact2 with the 5.3, and I'm completely satisfied. I previously had the LP3 in my system and did experience some overload, specifically on passages where a singer cut loose in the upper register. This still occurred at times (though less often) with the 5.3, but when I added the outboard power supply and both units were fully broken in (this does take some time), I finally had all the headroom I needed. At this point, there appears to be nothing this combo can't handle with ease.
