Hmmm, perhaps drained is not the right word, but I think it is more likely that the chassis is dampened than the resonance frequency is being altered...
I haven't really experimented with isolation platforms per se, and I have previously tried sorbotane feet from Audioquest without noticing any effect...
Well, there's a chicken-and-egg problem here. Hearing your system certainly got me interested in surround, but as long as selection is so limited, I...