" I enjoy the liquidity and richness of the tubes, I do like the detail of the SS preamps also....tough call."
After reading that, I thought I'd comment on the Ayre K-5 a bit more. Liquidity in an audio component is difficult to define. But the first thing that comes to mind, at least for me, when listening to Ayre in general, is liquidity. Its the cleanest, purest, most liquid SS gear I've ever heard. There's a complete lack of anything that sounds mechanical or electrical. But you still need to listen to it first. While it does have some traits that tubes are known for, you wouldn't mistake it for a tube preamp. You wouldn't mistake it for a typical SS preamp either. I have yet to hear any other brand, tube or SS, that sounds like Ayre. Because of its unique sound, I would say the Ayre is a must audition before you make a decision.