I had trouble with wood floors for many years and despite a Brightstar sandbox and airmass, my TNT would respond quite audibly to footfalls. I finally decided to get some metal brackets made (by Mike at VPI himself) and place the VPI on the wall. I also have plaster walls on a brick house, but the beautifully finished brackets went into studs inside the wall. I then put screws in the top of the brackets to level a 2 inch thick piece of maple (made by Mapleshade) ontop. Without the four screws for leveling, the platform could not be leveled no matter how careful you are with the brackets. The turntable immediately sounded much more stable, bass was more extended, and best of all, I no longer have to worry about my daughter or anyone else disturbing my listening!
Randy
Randy