Soft squishy feet


Can anybody recommend a small soft rubber footer? I have a couple of small components, which don't have footers, that I wish to stack, but I don't want a footer that will leave a mark on the top of the unit. I was thinking about Herbies, but I don't know if they will leave a mark.

Thanks,
prpixel
I use the tenderfeet under a tube amp and I didn't hear a hint of difference in the sound. I will leave them of course for peace of mind, but I didn't hear a whole lot (if any difference) with them. Which may ultimately mean I need to further isolate.

Either way, shipping was fast, and overall great buying experience with Herbies.
Jc51373, it may also mean that you amp is very well designed and does not need any further isolation. On some equipment, isolation seems to make a difference, on others there is no or negligible difference.
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