I have not heard verification of this but common sense tells me that a solid piece of hardwood, combined with the weight of your speakers should couple to the hardwood about as well as the hardwood flooring couples to the subfloor. If true then it would sure make positioning speakers a lot easier! Say a Boos butcher block cut in half and the handle indentions trimmed off and edges routed. Or there are guys on the Gon who would make to spec and match your speakers I bet. Hope that helps.
