Do you have hardwoods or carpet? I had my M22's on homemade speaker stands and was concerned because they were top heavy. Having twin boys that were learning to walk made me very nervous. I had hardwood floors and used the Blue-Tack putty that you use to hang pictures and posters on walls to anchor the stands and speakers. It worked like a charm. The stuff sticks like glue and doesn't mar the vinyl on the speakers or the hardwoods.

M22's, VP150, QS4's, HK 630, HSU VTF3-MKII