The Best Isolation/ Vibration Footers per component - what's your experience?

@lalitk I inserted Marigo's new Orpheus platforms as well under the footers and further improvements to detail and noise floor. Amazing combo!

-Alex

I see below that a couple of years ago I was considering EVPs and other decoupling methods.  I have since stumbled on damped springs and believe they do a very good job of isolation, particularly with large loudspeakers but also with individual components.  I have taken a three part approach to my equipment isolation, first having a very solid and heavy base, whether a heavily reinforced wooden equipment rack or something even more solid like a steel Sound Anchor stand.  Second, provide a damping platform such as the constrained layer Zoethecus Z-slabs I use under my electronics, the SRA stands I use under my amplifiers, or the thick wood platforms I use under my preamp and volume control.  Finally, third use some sort of decoupling footer such as damped springs or something similar to EVPs or Herbies, or just plain sorbothane, which are all elastic and a type of spring.  Under speakers, it is a heavy damped platform (Sound Anchor stands, which are damped with sand filling) and then decoupling using damped springs.  The key to decoupling with springs is to have an appropriately matched spring for the weight supported, and to provide some form of damping such as a thin membrane around the spring or perhaps foam inside the spring.  While some things do cost money, such as the Sound Anchor stands, Z-slabs, and SRA platforms that I use - reinforcing/bracing of wooden equipment racks, constrained layer platforms, EVP type footers (made from Owens Corning materials), sorbothane, and/or damped springs can be implemented at a comparatively low cost.  This stuff doesn't need to be overly expensive, and just spending a lot of money doesn't guarantee the best results. 

You have omitted what in my experience are the world's two best from your list:

-Dalby Audio

-Wellfloat

@rareace : Agreed. Marigo Audio vibration control products are outstanding. I've been a very satisfied customer for over 20 years. Jeff

Interesting discussion. About a year ago I bought the Symposium Segue Iso for my turntable and was very impressed. Wanting to learn more about spring isolation, I read very interesting comments regarding Townshend products and eventually bought a set of Podiums for my stand mount speakers. Have never experienced this level of improvement due to any tweak or modifications. So this brings me to today where I recently added the Townshend Platform for my Simaudio 650D cdp. I am having a difficult time finding footers now that do not cause a strange resonance or frequency anomaly. First used Symposium Rollerblock 2+ and sound became very strident in the midrange. Then replaced these with cork/rubber Isolpads and things sounded much better but maybe a little softer muted. So pull out some Polycrystal cones that I’ve kept all these years and tried for a short time but went back to the Isolpads because the midrange was still not right. 
I am just curious what others have used.