I've read in many sites that the RA 1062 integrated amp and the 1072 CD player are built so they are in effect, a mated set. Provides dynamic range etc. My question, because I'd be using the 1060 as a pre, as a point of comparison, how do you think the RC 1090 (or 1070) pre performs with the 1072 vice the intregrated? Thanks, Dave.