Jim, to be more helpful, I re-read your goal and it sounds like what I am doing right now. Think of Silenzio/NAS and Esoteric K-03X as replacing your Sony CD Player and you got it. It is a big, big upgrade. You can do it in two bites, first K-03X, then add Silenzio, but then you lose the discounts. The Stillpoints can come later. Only you can decide if the money makes sense. I can tell you that my Silenzio/K-01 combo sounds epic.
