indranilsen, I think you know where I was going with this but, in view of other comments I thought I'd amplify for what ever that may be worth.
Needfreestuff is absolutely correct - 1)Wood floors can be lossy (as hell) and 2) I too would never place a turntable on a wooden floor. That said...
My thought was, starting out as I suggested, you would find out if the combination of carpet and pad under the 'board' sufficiently reduced vibrations from the floor. If so you might not need (as opposed to want) to use mass loading onto the floor. You might want to introduce some vibration reduction (insulating) materials under the board supporting the table(as in a boxed enclosure, like a sand box, with sand or thick latex foam) directly on the carpet. And don't be shy, jump up and down a couple of times and see what happens. If the arm doesn't jump out of the groove you might be good to go. What I'm getting at is trying to isolate the TT from the floor.
If it does the first thing I would explore would be shoring up the floor under the TT. A pier or shim might do it and it would be cheap (if you can crawl under your house). If that works then you could mass load to your heart's content. Hell if you want you can even play with springs, although I must say I think springs introduce more issues/problems than other forms of isolation.
I'm probably just a cheapskate but I find little on the market that has ever interested me, although highly touted (and overpriced). I think TT set up is the last great DIY opportunity. Enjoy. :-)
Needfreestuff is absolutely correct - 1)Wood floors can be lossy (as hell) and 2) I too would never place a turntable on a wooden floor. That said...
My thought was, starting out as I suggested, you would find out if the combination of carpet and pad under the 'board' sufficiently reduced vibrations from the floor. If so you might not need (as opposed to want) to use mass loading onto the floor. You might want to introduce some vibration reduction (insulating) materials under the board supporting the table(as in a boxed enclosure, like a sand box, with sand or thick latex foam) directly on the carpet. And don't be shy, jump up and down a couple of times and see what happens. If the arm doesn't jump out of the groove you might be good to go. What I'm getting at is trying to isolate the TT from the floor.
If it does the first thing I would explore would be shoring up the floor under the TT. A pier or shim might do it and it would be cheap (if you can crawl under your house). If that works then you could mass load to your heart's content. Hell if you want you can even play with springs, although I must say I think springs introduce more issues/problems than other forms of isolation.
I'm probably just a cheapskate but I find little on the market that has ever interested me, although highly touted (and overpriced). I think TT set up is the last great DIY opportunity. Enjoy. :-)