Tube Preamp Isolation

I just installed some 3M damping sheets in my Belles 21 that I bought thru AMUSICDIRECT.COM $20 for a set of 4, very cost effective IMO and I can hear a difference. I mounted them inside the removable top of the pre. I also use Vibrapods as well.

I have tried lots of things. And as my system changes so does the isolation.

Right now using Dh cones Jumbo's. But have also used symposium rollerblocks, symposium svelte shelf, and Symposium fat padz.

It's also on a Arcici suspese rack.

The rolleblocks bring out the detail, lower the noise floor, but at a expense of some warmth. DH cones keep the warmth... but don't seem to lower the noise floor much.

The symposium shelfs and padz are somewhere inbetween...

I use the Aurio 1.2 under my deHavilland Mercury preamp with a 1/4 " piece of maple between preamp and Aurio which took all the ringing out and is superb. I use the Sistrum under my amp which is fabulous and would probably be great under a preamp.

I have Aurios Pro under my ARC Ref 3 as well as all my other components including my Lamm ML 2.1's. I wouldn't have it any other way.

Go to an HVAC supplier and buy the rubber/cork/rubber blocks that are used under AC compressors. These are the same as the Mapleshade Isoblocks, but will cost you a lot less.