Dismalonyx, if you're looking for a completely natural presentation possessing good speed, agility and tonality without sacrificing dynamics or the "life/energy" associated with great music, you should consider Blue Circle's BC8 monoblocks. They're very fast and are one of the most musical amps I've listened to! Regarding a preamp match, I think your musical preferences would need to be known before making a good match... the good news is that there are a number of solid state and tube preamps out there that sound great with the 8s.
Let me know if you'd like to discuss!
Kevin Allen
Let me know if you'd like to discuss!
Kevin Allen