2. analog
  3. 1318454380

Vibraplane: Should it be loaded close to limit?

I just bought a Vibraplane 2210. It has a maximum load of 275 lbs. I plan to put my unsuspended SME Model 10 turntable on it, replacing my Townshend Seismic Sink. My question is this: Because my turntable only weights about 30 lbs, should I preload the Vibraplane to get the total load with my turntable closer to the maximum load? Will this improve the isolation? If so, what do you recommend I use to preload it? I was thinking a sheet of steel, aluminum or granite. Any advice would be greatly appreciated.
peterayer
geoffkait's avatar
geoffkait
23,365 posts
 
The vibraplane is preloaded with 100 lb, so add that to the mass of the component when calculating system resonant frequency, which is the square root of the system spring rate/total mass.
avphile
15 posts
 
Where is all this different information coming from?
The Kinetic Systems website (which should be used as THE
information to work with!?) states a MAXIMUM OF 200 POUNDS NET @ 80 PSI for the 20x24 units. Correct?
peterayer OP
1,382 posts
 
AVphile,
The Kinetics website quotes a max load of 200, but the specification sheet for the unit quotes a max of 275. The performance graphs suggest the closer to the max load the better the isolation figures. I have emails going to both Sounds of Silence and to Kinetic Systems for some suggestions. I just thought Audiogon members who own this unit might have some insight on how to optimize its performance.
palasr
525 posts
 
I too recently picked up this unit (active version with compressor - 2212-01), and would also like to know the answer to this question. The instruction manual states 275 lbs as the maximum load.
avphile
15 posts
 
Pete, please post for us what you hear back.
Regards & Thanks.
More to discover