Need to know the best proccessor ...........

An even more complex install.

Another "best" question. Too many variables are omitted. Options range from the Integra DHC-80.3 to the DataSat RS-20i.

Mebbe the Datasat but that is not necessarily a useful recommendation since (1) I understand it is a real bear to set up without professional help and (2) the cost of it would better be reallocated to the rest of his system.

Almost any processor will mate well with the amp. The (old) 1570 lacks an EQ function but, if it sounds like the 1572 that I reviewed, it is a nice prepro. From the current crop, I would suggest you look at the Marantz 8801 which I have seen, at discount, under $3K or the Integra 80.3 which is even less.

Drew911, match the amps to your speakers. Any decent prepro will mate well with any decent amp.