Hey TBers! I was wondering if anyone had the chance to try them all side by side. I've tried the MB500 for a gig (when my actual amp let me down) and loved it. My question is, how different is it from the MB fusion 500 and 800? I like my sound not too clean, and I got some pretty nice stuff out of the MB500 when I crank the gain from the second master. I have a SVT-VR right now, and I'm kinda sick of carrying it around. This amp could be a good alternative. Any thoughts?