I have had good experience with NAD amps used with PSB speakers. Very good combination. They once were, or maybe still are, sister companies. I used the PSB Imagine B speakers with a NAD C375BEE integrated. Not sure how your combo would work with your preamp. The Imagine B may be out of production now but some of other PSB bookshelves may fit your taste. As always....audition the speakers with your setup if you can.