What isolation feet under your amp with great result?

@squeak_king_77 - thanks for posting that info on the carpet discs.

@mitch2 - your system page look great. Is that a woolen rug on your wall behind the speakers? Did it make a reasonably significant difference in room sound?
I was thinking of doing the same thing, but also maybe having it stood off the wall a few inches so sounds can pass through, bounce off the wall behind and make a second pass.

I'm using the Symposium Acoustics Ultra Platform under my integrated amplifier with very noticeable results.  The sound is more focused and the background though very good to begin with seems slightly darker and the tonal focus seems better.  

I also have Symposium footers underneath my CD transport and speakers.

Any of you try these?https://www.amazon.com/Nobsound-Aluminum-Speakers-Isolation-Amplifiers/dp/B07K9ZYP84/ref=cm_cr_arp_d_product_top?ie=UTF8

Been poking around a bit and these look even better visually since the springs are enclosed in black or silver CNC’d aluminum footers.  It seems the top stud could be rethreaded as needed so they could be connected/threaded directly to the speaker base or, in my case, to my Sound Anchor stands.  A little tall for my situation but inexpensive and might be worth a try.
https://www.aliexpress.com/item/4000590928789.html?gps-id=pcDetailBottomMoreOtherSeller&scm=1007.14976.157518.0&scm_id=1007.14976.157518.0&scm-url=1007.14976.157518.0&pvid=11102f24-cd15-4a4e-ac19-de9b31b2c1e6&_t=gps-id:pcDetailBottomMoreOtherSeller,scm-url:1007.14976.157518.0,pvid:11102f24-cd15-4a4e-ac19-de9b31b2c1e6,tpp_buckets:668%230%23131923%230_668%23808%233772%23984_668%23888%233325%234_4976%230%23157518%230_4976%232711%237538%23214_4976%233104%239653%2310_4976%233141%239887%235_668%232846%238109%23246_668%232717%237565%23783_668%231000022185%231000066056%230_668%233422%2315392%2369