> Don't remember if this was answered before, but is the monster base
> wide enough to support two portable cases on top of it left and right
> (not stacked)

Please look at the monster base info page
http://www.doepfer.de/a100_monster_base.htm:

".... This has the advantage that even two standard suitcases or low cost
suitcases can be positioned on top of the A-100 base frame."

Best wishes
Dieter Doepfer