Anti-Vibration pads: which component most?

Source then pre-amp. I am guessing your amp and speakers are probably well isolated due to their weight and positioning within your system.

Make sure you have your signal and power cables up off the floor and separated as well. As usual YMMV.

I am not familiar with those..there are lots on the market...I"ve tried Symposium Fat Padz before...easily can hear. I suspect once you start, you'll be buying more ;-)

The moment I put them under my pre amp Jolida 5t, I noticed an immediate improvement.

Agree with Tom6897, source first. Try Black Raviolis, they worked best for me after having tried lots of others

And: What pads are the best? Are some pads better than others? Do some components respond to pads better than others? Do some pads work better on different shelf materials? All these questions are the same. There just ain't no way in HAYell of knowing the answer until you try it for yourself and see. Not trying to discourage you - on the contrary, feel free to jump right in. BTW, welcome to the Kingdom of Tweak!!

Regards. John