Herbie's is a place to contact. Steve is very helpful. I use various isolation devices of his under different components including speakers and turntable.
When I had an Aesthetix Calipso Audioquest Sorbogel "Big Feet" worked the best in combination with the rack system (bad) I was using. I tried Mapleshade Heavyfeet(to bright), BDR #3 & #4 cones good but there were still vibrations (hash). A Calypso owner with a Salamander Synergy rack used AQ Big Feet in front and maple blocks in back until he tried a SRA platform that he felt outperformed all prior tweeks. Grand Prix Audio uses Sorbothane pads between the rack and shelf, Project TT's have sorbothane pads in the feet! I only use sorbothane under my EP15A's and Direct TV DVR presently.
There have been many reports of great success with maple, but it seems I may be the lone dissenter. I tried 2 1/2" cutting boards under my components and they were terrible. Depending on the component, they either sucked the life out of the music or everything became fat and bloated. If it works in your system, that's great - but in my system maple was an abysmal failure.
Over the years I have used "seismic sinks", "brass points", "Aurios bearings", "stillpoints", and the latest Marigo "mystery feet". The "mystery feet" enhance the musical presentation better than all others. They are a must audition if looking for the ultimate in footers.
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