how did you cut / drill the indentations into the marble? i didn't think a normal drill would be able to make any impression.
Could you expand on that?spxy said:You need a solid reference point for decoupling to work.
Hmmmm... I'd have thought the compressed air route would offer better damping/isolation? I have a suspended wooden floor if that affects your thinking.blakeaudio said:i have to say the (thick) layer of silicone sounded a much better idea to me....
Not quite with you there? Partly I think air is going to offer better isolation as there's going to be a greater acoustic impedence mismatch with the granite, than I suspect you'd get using silicone sealent? There will of course also be the rubber of the tyre wall but I'm hoping the air would be dominent (possibly a false assumption). As for it's damping properties I don't really know...blakeaudio said:i suppose with wooden floors you might want more compliance....
MartinC said:I'm toying with the idea of sandwiching a bike inner tube between a pair of granite slabs, with a wooden frame round the edge to hold thngs in place... I might get round to trying this over the Christmas break if I'm feeling keen.