vibration control

It is useful to use isolation devices under every component. There are countless types, they all sound different, and you will definately have to experiment to decide what works for you. Start with cheap things like small myrtle wood blocks. There are so many good things. The brass cones by Mapleshade are also very good.

Useful yes but most of the time way over done...just my take.

I use some form of vibration control or tuning under just about every piece of equipment. ( Many times people use the term "vibration control" when the item in question actually just varies resonant frequencies.) As Roxy54 says, they all sound different. Plus, every piece of equipment is different as far as how much vibration control or tuning affects it. My Marantz Sa11S1 is greatly improved by the Boston Audio xl tuneblocks I use, but they make only a slight improvement under my other gear. I also use three maple plinths, one under my turntable, phono stage gain stage, and phono stage power section.

Yes SYMPOSIUM Ultra,Rollerblocks etc the BEST by far..