Currently my CJ Premier 8As are on the bottom two levels of a BCD 1100 rack, but I am planning to move them off the rack and onto the floor so that :

a) they can breath a little easier as they put out a decent amount of heat and
b) so I can use the shelves for other gear.

My floor is what I believe is referred to as a suspended wooden ground floor ( though there isn't very much if any bounce ) with carpet on top. I have ordered two 19 inch by 21 inch by 3 inch slate slabs as an initial starting point.

So my question is - would I benefit from anything additional that goes under the slate slabs by way of footers, spikes and in the same way is there anything that would help on top between the slabs and the amplifiers ?

Thanks - Andrew