I started using Herbie's products years ago with tube dampers. They WORK; even this tin-eared audiofool could hear the differences, mostly reductions of harshness. Bought a bunch of equipment footers of various colors and types; what I like best are the TenderFoots, and I use them under everything electronic. (The Big Tall Tenderfoots work
really well under Class-A and/or tubed amps, which run hot.)

Notice the
grungebuster dots under the steel plates; am now using larger ones under 1"-thick plates (and only single plates).
Have been using the RCA-connector dampers for months; I can't hear the differences they may be creating, but I know that my system gets more transparent and better sounding in every way.
Keep up the good work, Herb.
