Tweakers Advice Sought. Antivibration.

Hi Gents. Which components are most important to isolate from microvibrations? This is for my weekend house system which is: Apple TV feeding Arcam BlackBox DAC via optical, Blackbox to Yamaha RX-A3000 being used as preamp, which feeds a Classe CAV 75 amplifier. If I have only 1 set of antivibration pads, which component should I use them on for the best tweak? thank you.