TWL is correct. Not all cones/spikes/points are created equal. And as far as I know, if the cone is a metal material, then labeling it as an isolation cone should minimally be considered a misnomer but is more likely an oxymoron.
Regardless, the ideal placement for your cones should be to place one directly underneath the power supply of the given component and the two where ever to stabalize the component. Power supplies generate a hum/vibration and by placing your cone directly underneath it, you are giving that internally generated vibration the greatest opportunity to exit the component before it spreads around the chassis.
As for the speakers, I've tried several different methods and different cones. Not one of them made a different until I obtained the proper sized AudioPoints that thread and tighten into my speaker stands which are threaded into the speaker cabinet. Only then was there a difference and the difference was incredible after settling.
-IMO
Regardless, the ideal placement for your cones should be to place one directly underneath the power supply of the given component and the two where ever to stabalize the component. Power supplies generate a hum/vibration and by placing your cone directly underneath it, you are giving that internally generated vibration the greatest opportunity to exit the component before it spreads around the chassis.
As for the speakers, I've tried several different methods and different cones. Not one of them made a different until I obtained the proper sized AudioPoints that thread and tighten into my speaker stands which are threaded into the speaker cabinet. Only then was there a difference and the difference was incredible after settling.
-IMO