What isolation feet under your amp with great result?

I had very slight woofer pumping when I was using my Manley Chinook phono stage playing over 80 decibels. I bought a Pass Labs XP-17 phonostage & the woofer pumping was out of control even at mid volume levels.  The floor to ceiling drapes behind the speakers were moving. I tried everything to contain the pumping because I liked the XP-17, but with no success. I then purchased a T+A phono stage (amp is T+A) and have no woofer pumping from playing vinyl. Sound is also even better. System synergy between matching components prevails. 

Absolute Sound just gave the Isoacoustic Orea and Gaia a Golden Ear Award. 80% of the performance of the really high end stuff at 20% of the price.
http://www.theabsolutesound.com/articles/2020-golden-ear-awards-matt-clott/

All the best,
Nonoise

Try these, which are one of the dirty little secrets in audio. They work perfectly, won’t break the bank, and don’t soften the sound. I use them under all of my components.

https://www.supplyhouse.com/DiversiTech-MP-2E-EVA-Anti-Vibration-Pad-2-x-2-x-7-8

rlb61,
Great suggestion trying these EVA's.  I am using them under some components and the 4"X4" cork-laminated ones under my heavy amps.  I can't honest attest to greater SQ, but the cost is a trifling so it is a sensible place to start on the quest for component isolation.

I put the GAIA Orea's under my Spatial Audio speakers and they perform exactly as advertised.  Frankly, they outperformed many component upgrades I have done in the past.  

@whitestix I used the cork ones for a long time. However, I have found that the EVA pads work a bit better than the cork. Either way, you’ll likely achieve the results you want at a fraction of the price of the "audiophile" sanctioned isolation footers.