Which cone's or platforms have helped?

Hey Bob, please let me know how the Nordost work out.
J.D.

I just read about a tweak using Styrofoam instead of platforms or cones, so I tried a solid block of 3" thick Styrofoam the exact size of my CDP and DAC (preamp and amp also).

I placed each component on it's block and the clarity increased dramatically. Passages that were entirely unintelligible, I can now understand every word clearly. The difference was hard to believe.

Try it, its cheap. If it doesn't work for you try something else. But don't be surprised if the results are as good as the most expensive options.

Fiddler, if I go to local Home Depot I can buy various sheets of foam insulation that have different densities and thermal properties. Do you have a more detailed description of type of foam you used....color, density etc. Some are quite dense/stiff and some are much softer.

What were you previously using under gear? Are component feet resting on foam, or just underside of case?

I can add this to JD's bubble pack tweak and get it all with one trip to Home Depot, heh heh.

Trip to home depot at lunch shows that 4x8 sheets of polystyrene foam (for insullation) are two basic types:
-white foam, less dense softer foam
-pink foam, rigid dense foam

Got a sheet of the 1.5" pink foam @$13, thickness available are 1/2, 1, 1.5 inch (no 3" foam) The pink foam is preferred I believe, if you check the foam inside Nueance or
Symposium platforms it is closer to pink foam density. Cut some bricks 8 inch x 4 inch with razor knife to position under gear and avoid feet or any vents which must remain clear. The 1.5 thickness is good because it easliy clears existing feet without raising too much (I could double up bricks for 3" height)

I am happy with existing brass cones and bearings, but this is a cheap, easy thing to try for reference, although will not win any interior design awards.

CDC, the Russians built the ALFA subs out of titanium because its strength allowed them to dive to greater depths. FWIW, the Alfa subs were notoriously noisy, hence the need to operate at greater depths. My point is that I have not seen any scientific evidence that indicates that titanium controls resonances r vibrations better than other metals.