Boy, Oh Boy! Towshend!

@sokogear
I will look into Symposium for rack component isolation for sure. I just need to get my thoughts together on the Townshend isolators first. But I think I have.
Speaker bars with pods under my Mezzo Utopia's and isolation corners under my Sound Anchors rack(thanks tvad). That knocks vibrations to everything down to 3Hz. Just need individual component isolation next.

My left Rowland Model 12 monoblock amp behind my left Mezzo and near my sub is on its own Sound Anchors amp stand with spikes. The amp and the connected separate power supply are both made of solid, machined alumunum. 30 pounds each. Do they need isolation? If so, I could remove the stand spikes and put each stand leg bottom on a Pod? That would be half the price of 4 isolation corners. I don't think amps vibrate on their own, do they?
Isolation platters under the turntables I'm not sure what to do there. Because of the dimensions of my 2 t.t.'s and their dustcovers, they may be the last thing I do.

Thanks to everyone who help me coalesce my pathway. Almost there.

If you have the budget for it I think you will find Pods make a big difference under the amp. My Melody is on a 150lb slab of granite, which in turn is on BDR Cones, and it has BDR Round Things screwed into both sides of the chassis, and the whole thing is on a BDR Shelf. Pretty darn good I thought. Then I replaced one set of Cones with Nobsound. This was a lot better. Then I upgraded from Nobsound to Pods. This was hugely better! 

So even though already on a lot of really good vibration control the Pods still made a really nice improvement. 

Went through pretty much the same course of upgrades with my phono stage and motor controller, with pretty much the same results. They were all extensively tweaked out and in good shape yet Pods made them all even better.  

I don't think amps vibrate on their own, do they?

They do. Everything does.

@steakster - wow- you know a hell of a lot more than me about Symposium. My thoughts with my speakers on Segues are two fold- 1) they get rid of/drain internal speaker noise while providing some isolation, and 2, I did not want my speakers being unstable in any way as they are tall and thin. I don’t want them to float like my components do. Peter had to custom size my Segues to have about 2-21/2 “ around the bottom to add stability.

Not sure what you mean by air borne vibrations. The internal vibrations of components are drained by roller blocks or platforms as are external vibrations from the floor.

@vinylshadow- glad to hear you will check with Peter at Symposium. IMHO though, the turntable isolation should be addressed first, but as MC says, it’s and and and and and......you can never correct noise emanating from the source. That noise just gets magnified down the chain.