@ Jimbones
My personal experience - I have owned and loved playing an Ayre K-5xeMP preamp for many years. Eventually, I wanted to try a good tube preamp and bought a ARC Ref 6SE.
A used Ayre K-5xeMP now costs 1/10th of the new ARC, but is surprisingly good for the money. It is different than the ARC, but it has the clarity, tone and voicing of a high-end preamp, but different sounding than the ARC (SS has a little faster attach and decay).
At this level, you may want to demo a few to see which provides the best sound (to your ears, that day) with YOUR other gear. If I were buying a used SS pre, I would also look at Pass and Classe, yet knowing what I know, I expect that the Ayre outperforms, dollar-for-dollar.