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How to isolated stand from springy floors?

I currently have a relatively heaving stand with a couple tube amps and a turntable on it. My big issue isn't really sound quality but my concern over tube life. My Manely Stringray II makes an audible tube rattling sound when ever my fairly light self walks by and I hoping I can come up with a fairly simple and hopefully cheap solution to this.

What would you guys suggest? Damping the underside of the shelf the amp is on comes to mind or possibly some sort of iso feet for the whole rack to cut down on vibration.
ohnofiasco
ohnofiasco OP
49 posts
 
Thanks for the quick response man. I haven't really looked much into tube rings/dampeners, do they alter sound much?
czarivey
4,494 posts
 
Usually bad tubes are more sensitive to mechanical disturbance.
brf
1,699 posts
 
Foot fall vibration on a sprung floor is tough to eliminate. Use a wall shelf rack attached to a load bearing wall will help isolate your equipment off the floor and away from foot fall vibration.
lowrider57's avatar
lowrider57
3,018 posts
 
Regarding tube damper rings on small tubes found in preamps, I have noticed tighter bass and reduction in microphonics from airbourne sound waves.

http://herbiesaudiolab.net/rx.htm
elizabeth
6,726 posts
 
More mass. Add a few hundred pounds of mass around under the rack. Bricks will do. Get heavy ones. Concrete like.
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