My question was actually for the OP in an effort to question his process. He bought an amp and now is wondering what speakers and pre will be a great match.
IMO you want to start with your speakers and match the amp accordingly. The amp he has can probably drive 99% of the speakers out there so the question is a bit irrelevant. Also, no goals were stated by the OP in terms of what type of sound he desires.
So this seems to be a fairly random exchange of info.