Hi Tony, got your message about wobbly speaker stands but I’ll reply to you here.
That definitely isn’t normal.
What I do is have some of those rubber sticky “feet” that you can buy for furniture underneath and on the top of my stands – we have marble floor so that works for me. What you really need if you have, say, carpet is spikes on the bottom. The whole point of speaker stands is to isolate the speakers and stop vibration (and to get them to the right height of course) but it’s normal to have to spend some time getting this right. It’s also true that speaker stands are better the more you spend on them!
Finally, check in the instructions – you may be able to fill them with something heavy like gravel from the DIY store to get them more stable.