Hi guys. Lately I've been very interested in playing through a multiple amp setup, especially after watching That pedal show's episode on it. I just have a few questions about it though First of all, I have an AC15 and an Orange micro terror, and I want to play through both of them together (not switch between them). The last pedal on my signal chain is a Flashback delay with stereo outs, so I thought I could go out into both amps directly through this I do know about the noise issues that I would encounter, but I read some people talk about safety issues with using two amps, but that's only if I remove the ground from one of the amps, right? Basically, my first question is: if I want to just experiment playing through two amps, and both these amps are grounded (they both have the ground pin on the socket), and I connect to both amps from the Flashback stereo outs, it'll be perfectly safe? Second question is, what do any of you guys personally use to hook up your rig to two amps? I read about isolated ABY boxes etc. but any recommendations (especially on a budget) would be great! The GigRig Humdinger looks pretty good - the only thing is that it doesn't allow you to switch between amps, which would be a nice option to have in case I wanted to do that Oh one more question actually: The solution of using a device to isolate the second amp, using an isolating transformer...this has nothing to do with the way I plug my amp into the wall socket, right? It's simply using a transformer to isolate the signal? Thanks guys!