I'd second the Blue Circle, you can get a used BC3 for about $1600 and you'll be hard-pressed to find better near that price point..if it's too lush for you, then look at Audio Research.
Best Preamp for under $1750.00
Seeking recommendations for a preamp in the $750 to $1750 range. Balance of system consists of Aerial 8's, Bryston 7B's, and CAL CL-15. Room acoustics and speakers would favour lean over lush; I'm looking for something musical without being on the "warm" side. Music preferences include acoustic, jazz, and rock. Will re-cable according to final selections