I've done dweekie's mods to my Gizmo. Only have 1, so did the stereo mods. Much, much better than before. I'm using it right now w/ my modded Constantine DAC and GR Research Paradox 1's, and really enjoy it. Soundstage is deep and very tonally accurate. Not quite to the level of my Mini's and O-3 systems, but only a couple of percentage points behind. Also perfect for my computer and near field listening. However, keep in mind that even after mods, the Gizmo doesn't make everything sound superb. I recently tried my modded Gizmo w/ my Mini's. Sounded thinner than I'm used to. Probably not enough juice for the Mini's. Worth mentioning that the modded version did sound better than the stock version, which I didn't like the sound of at all.