Gingko Isolation platforms

I love using $1.25 a pop butyl rubber chemical bottle stoppers, size 10.
I use them all over the place.
For a buck each they cannot be beat on glass shelving. (unless you are an audiophile with buckets of money)

LOL... I don't have buckets of anything, lol. I have used sorbothane pucks in the past on my tube gear and they worked well. Whenever I've tried home made vibration devices, I've lost bass or soundstaging etc.... I think that there is something to them tuning them to specific frequencies. Heck, I work with wood and can easily make a Mapleshade shelf and I may do that still for some other components.

Elizabeth, you don't find that you lose something by using the stoppers? Just curious. Thanks.

I think there is this knee-jerk assumption by audiophiles that components can't sit on their own feet. As you have experienced, adding aftermarket footers can cause you to lose bass or whatever. If the system is muddy, this can be a blessing, but I personally believe that most people who actually listen to music would prefer a system with a bit more "padding" or richness in the lower end. As you are doing, you have to try them and decide if they are genuinely making the listening experience more pleasurable on the whole.