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