Best tube preamplifier for under $15k

I am with @roberjerman--I bought an SP-6 for less than $1000.00 recently and it is awesome.

Of course, the new Audio Research stuff may be better, but you will pay a lot more for them.  I would certainly audition one in my system.  They started out with the best of the best pre-amps back in the 1970's, and continue to produce better pre-amps than most.

Cheers!

Bought my ARC LS 15 back in 1995 and still using today and love it's musicality  Can't really remember,  but I think I paid less than $3,000

Jadis DEFY 7 used

Audio by Van Alstine Transcendence 10 SLR - $1299. Replace the stock EH 6922s with a pair of platinum grade National/Matsushita 7DJ8s for $120. Enjoy.

Oops, I read it as best tube preamplifier under $1.5k.

I posted a power amp by Jadis in error but it's still a great amp and the one I would have.I remember Richie Favia's system in the 80's at Longplayer Stereo where hr had a Jadis preamp into a Defy 7 amp with Martin Logan CLS's with Kinnergetics subs which were six feet high.I think he had a Sota Sapphire turntable and I can't remember what CD player he had.Great sound.