We've been looking into this theatrical apparatus for a while with my AC/DC band.
Now that we have cannons, a 4 foot tall bell, trigger pads for bell and cannon sounds, backdrops, etc.
We want to move things yet another notch up.
The cheap alternatives...welll...look cheap.
I've seen some nicely built fake double stacks where one of the bottom straight one
needs to be real...That's the one that gets miced up.
THe whole thing is made out of the same actual materials than real cabs:
Tolex, wood, piping, grilled cloth...etc.
They're only like 2 inch thick.
But these things aren't selling for cheap either.
For now (You can see in the videos) we use 2 angled cabs each that we stack sideways,
because obviously there is no room to stack them atop each other.
At least it's real cabs even if the arrangement looks a little uncommon.
Straight Marshall cabinets are hard to come by and people sell them at ridiculously high prices around here.