Footers What components Need Them

I have a Monster Power Center that is sitting on a wood floor? Do I need to elevate this off the floor? Also I have a VPI SDS which sits on glass shelf? Do I need to put this on footers? Basically is isolation necessary for these componenets?

Yours is a controversial topic, but my opinion is that you need footers when you can actually hear a difference. In my system, they aren't much use, but I heard equipment over the last few days that was so revealing that any flaw whatsoever was exposed. The short answer, in my opinion, is that it depends. That's not much help I'm afraid, but that's how I see it.