How Good Is A Marble Slab at Deadening Vibration


I have a marbles slab that is approx. 42" X 16X 2". A left over insert from a coffee table. I would like to lay it on top of a plant stand table that is 50" X 18X 30" The slab weigh about 70 lbs. II think I have enough space laterally to position a Rega turntable, a Bel Canto line stage, and Rega Apollo CD player and a pair of Red Dragon monoblocks, that could easily be stack vertically if necessary.(Also could place them on the bottom shelf which has a slight V-shaped dip ...probably a run off channel. This would save me three feet of speaker cable on both channels is placed near the bottom)

The plant stand is made of wood and has fairly massive "L-shaped" legs. The table weight is about 40 pounds.

My thinking is that a marble slab should provide excellent isolation from vibration. The only drawback is the left side of table will only be a foot from the right speaker. So I would start the progression of components from right to left to increase the distance to the speaker in question. Would like opinions from members about the pros/cons of this set-up. Thanks, Jim
sunnyjim
To Nonoise, Many thanks, this stuff is alot cheaper than Mapleshades' cork and rubber Isoblocks. Will give them a call. Jim
It rings like a bell Try Symposium ultra shelf musical and neutral much better.
Most Vibration pads are 3/4" thick if it has cork. you can get them made of just rubber much thinner. I would recommend these is you need thinner. Remember you must add more for weight as they are 3.8 thick. here is a link for Amazon http://www.amazon.com/Mason-R18X18MSW-Natural-Vibration-Isolation/dp/B006W0P6Q0/ref=sr_1_11?s=industrial&ie=UTF8&qid=1372678548&sr=1-11
Hevacl. I am considering about 8 of the 3/4 inch blocks would sufficiently carry the weight. The slab is 42 inches L by 20 wide. Nonoise provided a link to a distributor that sells a variety sizes and thicknesses of these rubber cork blocks. They are relatively inexpensive. Check out the link from Nonoise Thanks
I suspect one will have much better results using slabs of marble, granite, etc. if he mounts the slab on cones and avoids the use of soft pliant materials like rubber and cork as those materials impede the rapid evacuation of energy out of the system. Damping the slab is better executed with Mpingo discs or similar devices that off load energy rapidly. When we try to Deaden vibration we often wind up trapping it instead. Tried and true mass-on-spring isolating devices usually improve upon such mundane devices as slabs of marble or granite on cones.