Last week, I bought a Voodoo Labs Amp Selector because I wanted something easier than my tuner for running two amp heads, or switching to a clean amp or my talk box amp, or anything of the things I've been experimenting with lately.
This thing cost a small fortune...well, to me, anyway: $160 used on Ebay (they're $240 new). But oh, my! Silent switching, the ability to run
four amps at once, no ground loop hum on anything, "grouping" capabilities, and a bunch of other features--this thing is the last amp switcher or a/b/y box anyone could want.
http://www.voodoolab.com/ampselector.htmI have a Voodoo Labs Micro Vibe, too, another great pedal.
J