Stack Audio Auva Isolator

Personally, I noticed improvement immediately. As time went on, my system got a little better - smoother mostly and better soundstage and clarity as well. But improvement was immediate. 

Ozzy I have the AUVAs under my Legacy Audio Signature SEs. I am also using the spikes. My experience is very close to Wig’s. Wider soundstage, smoother yet more detail. I really like them. Sorry I can’t compare to any others as after researching these were the ones I went with. I also got the EQs for components. Liked what I heard with those as well.