Please recommend a good Tube preamp.

Banter check out the Supratek. The Chenin which is the model I have sells for about $3500.00 new and includes a world class phono stage, remote and HT pass thru. These pre amps are hand built by Mick Maloney in Australia. Ive had mine since December and IMO this pre stomps all over the VTL 5.5 which costs a lot more. I think it is better than the 7.5 as well. These are the only two tubed pre I have experience with besides the Supratek. Check out "preamp deal of the century" under amps pre amps here on AG. I believe its the only thread with over 1600 entries. I bought mine strictly from input I read about here on AG and e mails with Mick. They are very transparent excellent speed, base, slam, air, detail, tone, huge sounstage, liquid, on and on and on. I was running direct from Wadia 861 and now I actually have more detail than running direct. Its definately worth checking out. Good luck

If you can afford it the Joule Electra LA150 at about $5,200.00 is an "end of the quest" pre-amp. Used you can probably get it for around $3,000.00.

OR the Joule LA100 Mk III for 1800 or less.

I will respectfully disagree with Tonryan. I had the Joule Electra LA150 in my system (mated with Joule's OTL amps), but proceeded to sell it shortly after getting a DeHavilland UltraVerve w/remote. The UV did everything better, imho. Perhaps it's the 6h30 tubes that I do not like, since the Joule was the second preamp with that tube (the BAT VK-51SE was the first), and I did not care for the sonics of either.

Or even a Joule Electra LA-100 Mk III. Not as good as the LA-150, but a fantastic preamp nonetheless. I love mine.

Used for around $2000 with remote. You will see a lot of Mk I's that were upgraded to Mk III status. But a "real" Mk III with remote is fantastic (this is what I have).

Best of luck.