No I'm not talking about beach volleyball. A couple questions that seem somewhat related. I've read of some people using spikes on the bottoms of their speakers. What exactly does this do...it seems bass related but I'm not sure what it does. The other question is about the front stages(I assume) that some people use for their home theatres and putting sand in them. Is this another bass improvement trick? My front speakers are B & W CDM 9NTs and I'm just currently starting to do the research into making my own home theatre in the basement and wonder if these are things I should consider for mine.