Since getting our greedy mits on an oscilloscope XSR has been back in full swing with PSU reviews, or at least half a PSU review. Today we'll be doing the same with a couple of Thortech units, part of Thunderbolt Plus range. One's 800w, the other 1000w. While our test rig can't pull anywhere near the maximum of these units, let's see if we can stress them a little.