Hi Greg,
I have a pair of 632’s sitting on somewhat lightweight solid cherry stands.
I modified the speaker plate to more effectively fit the 632’S, which means a larger platform conforming to the size and weight distribution of the 632.
Due to the weight of the 632, I believe that you would knock over both speaker and stand if impacted, although I have not tested that and have no desire to do that test.
If you want a rigid mount, there is a ¼ /20 inch bolt mount on the bottom of the speaker.
If you decide on this then you would also need to fasten the speaker stand permanently to the floor to make the assembly as rigid as possible.
Jack