choice of ref pre amps

I'd suggest not getting hung up on tubes vs. SS and just listen to the top candidates, once you've narrowed down your list. At this level I think it's silly to think any one technology is superior to all others. IME, as you get higher and higher up the chain the differences between technologies narrow dramatically.

Dave

Plataman,
There are many fine preamp recommendations offered above and I am sure you will be able to find one that matches your equipment and musical taste. We each have our own preferences and would suggest that there is no "hands down" solution. I read where earlier in the year that you were considering a used tube preamp in the $2500-4000 range. If your budget has changed, then I would second Bar81's recommendation to consider the BAT REX. It has elevated the level of my system considerably. The Tron would also be worthy of your consideration. Good luck with your search.

Another recommendation for the BAT/REX. I feel it very well may be the best audio purchase I've made. Good luck in your decision.

Enjoy,
Tom