Hi Stereo5!
The Audible Illusions 3B is awesome. I've only owned two other preamps. A ARCSP6B and the older Quicksilver full function which I think is pretty good.
But, the 3B opens the doors on all my components. It makes my modest system shine as well. I just need a really good CD player and I think I'm good to go... I came close on a used Esoteric X05 but it was to much for me at the time.