Vibration control inside a cabinet

Ya, and since springs isolate vertically very well, but laterally not-so-well, a set of roller bearing somewhere. I prefer them directly under the component where possible. So, the component, the roller bearings, the maple platform, the springs. Roller bearings provide no lateral isolation, acting as a coupler in that plane, transferring energy just as do cones, if you believe in that sort of thing ;-).

I second the roller bearing idea. The concave shape of the base is a very shallow angle so there is some isolation horizontally I think. They also are good in the twist and the other two rotational directions due to the concave shape of the roller bearing bases. Can’t recall if I mentioned it already but Super Balls on Snaple bottle caps is a faux roller bearings for those DIYers out there.

Not a bad idea, Geoff! Except it will make me want some better made, metal roller bearings and cups.. then I'd have to spend 💰.

 
toddverrone
Not a bad idea, Geoff! Except it will make me want some better made, metal roller bearings and cups.. then I'd have to spend 💰.

Ah, the timeless audiophile predicament. 😀😀

Roller bearings can be had from Ingress Engineering in Canada for as little as $85 for a set of three. If you use only one of the two bearing cups at each location instead of two (look at them to understand what that means!), with the ball bearing directly in contact with the bottom of the component being isolated instead of the top cup, buy three more ball bearings and that set of three becomes two sets of three. Much cheaper than some other high end isolators, and not much more than Sorbothane half-spheres.