I'll measure  my speaker stand, but I think all you'd have to to is remove the top cap and the rope grommets. 
If it's the same size, it's a great idea. I was originally looking at an outdoor umbrella stand, then having to buy a 2" pipe to weld  on. 
 
I'll have to check the local  restaurant supply store next time I need a stand 
That is what I was thinking of doing anyway because the junction box seems to go over the pole so I don't need to worry about the cut part as much. I just thought it would be perfect and from what I saw on the internet the pole is 2" in diameter and that is what I was told I needed for both the meter and the speakers.