Whats the best Tube Preamp

The Thor T-1000 is great (own one). I listened long and hard. Heard many includeing Jadis,CAT, ARC, Audio Note and several very good solid states. When you get into this level of difference though it becomes a personal taste issue.

The best two tube pre-amps are the CJ ART and Premier 16. Miles ahead in a high class system. If you've heard either and not been impressed, then the tubes were worn out.

As Trindle notes, c-j 16ls is tough to beat in any system and at that price point.