Vibration control inside a cabinet

 
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.

FWIW, I recently received an email from The Cable Company offering Symposium Acoustics Isolation Platforms starting at $199.00.

N

@bdp24 that is a great idea. Thanks!

Actually the high carbon chrome steel bearings require the extremely hard surface of the top thingies that are provided to perform properly. The underneath surface of the component doesn’t quite cut it, it’s not hard enough and tends to flex. The other problem is without the two upper pieces the component will tend to roll. All three bearings need their top constraining pieces. This constraint forces the bearings to move very slightly up the concave inside of the bottom cup when forced by external uh, forces. All three bearings must be free to move freely in their bottom cups. Otherwise you lose all the isolation. The component must obviously be leveled precisely on the roller bearings and the roller bearing just be in located precisely such that mass is uniformly distributed.