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Isolation Devices, Something to put on top of unit

Hello, I need to find a good device(s) /or/ method to kill the airborne vibrations that attack the top of my cd player and preamp... Basically the shelfs under the components are completly dead, you can not feel anthing coming thru the rack or the bottom of the units, its just the top plate of the unit, which is the largest and weakest surface area anyway... but again the rack is excellent, it has 3" thick maple shelfs and with full bass in the room does not show a hint of vibration. Don't get me wrong the system sounds excellent and never skips or does anything funny because of the top plates dancing to the music, but of course I would like to eliminate this.
-Should I just get some 2" solid maple blocks that fit on each unit and do it this way as this is how the shelfs are, with like a sheet of fabric inbetween or something?
-I would like to keep this situation as CHEAP as possible, again I would like the benifits but really the system performs flawlessly.

--I have a turntable in the system too, it never skiped once at full output so its good, the plater does not vibrate, just the dustcover(so I just leave it open

--Wadia CD player never has a problem but would like to put something on top. It does not get hot.

--Mcintosh Pre-amp like to put something on top, it does not get hot.

Thanks fellow audio people
matrix
the_kid's avatar
the_kid
465 posts
 
Matrix,

I will make a BOLD statement here. I have tried almost everything under the sun and have had some success and also anything but with some products. I now use these devices and will NEVER look elsewhere. Monument Reference www.monref.com is the company and they produce devices out of Brazilian Rosewood, Cocabolo, and other various tonewoods which are treated with a Violin like varnish.

They make coupling devices and mass loading devices. Call them and take them up on their 30-Day money back. You will be shocked at the musicality. You can see my system here on Audiogon as I use them under my Cary SLI-80 Signature Amp and my XA-777ES CD player. Good luck to you.

Chris
matrix OP
305 posts
 
Sounds good guys, I'll take a look, yeah you can only do so much I know that, just want to do something rather than nothing you know what I mean? Thanks
tbg
5,263 posts
 
As I said, put something heavy on top, not iron.
matrix OP
305 posts
 
I have a couple marble tiles, that I put back to back weight around 10 lbs, they seem to do something decent, I have some isolation pucks that I set them on, but can still feel the top vibrate a little, so should I dump the pucks and go with a fabric or something to just lay them flush on the top of the player? thanks
theaudiotweak
2,804 posts
 
When properly grounded mechanically you want to provide only one surface for vibration to exit. By having something on top you are disrupting the energy flow at the bottom of the chassis which can be grounded more easily and effectively. If you are concerned with quieting the chassis yet still want to couple properly try using all brass hardware to mount the lid, circuit boards,transformers etc. within the component itself. The brass has superior sound quality does not ring like the typical steel hardware used and is non ferrous so it is less disruptive to signal flow within a component or speaker.Tom
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