If you remove the feet from the combo, what will you do when you want to use it without the 210 cab? Anyway, I suspect that the coupling is acoustic.
I would use an amp stand on stage, and the combo sits on top of the 2x10 cab at home. I still have the feet, so I can reinstall them quickly, if I needed to. The combo sounds so good with the matching cab, I don’t think I’d want to play without it now. Hah.
It was "OK"-sorta. But I never got the sound out of it that I expected, esp. after shelling out those $$$. Shoulda kept the bucks and used the Kasino.