I hope someone here can help. I'm building a bottom 4x12 for a friends B'day surprise, and have pretty much finished it , however I need the measurement of where the caster cups go on top. He has a Marshall 1960a cab with standard casters. The cab I've made will match in size to the Marshall. If anyone can help out with measurements from back and side and front and side, it would help me heaps.
I'd *really* find a way to quietly have someone double check HIS cabinet.

Or you could email someone at Marshall.