I only have one cab at this time but have 4 amp heads. Is there a pedal I could get to run all 4 heads into one cab and just switch between them when I want with pedal?
Couldn't find anything that would do all 4 but I did find one that will handle 2 at a time. You would need two of each of these and have to rewire the cab for stereo.
2 amps left, 2 amps right, then a mic for each side of the cab.
I've never seen more than 2 on one cabinet either. It does seem excessive but its your rig and that's what you want so cool. I have one of these. I use 2 heads and this works great. Sorry I couldn't be more help. Rock on!!