i will be meeting some folks to look over a rotelrb976 6 channel amp. it will be my first separate. i have found many good reviews online and they say it is in fine shape. anyone have opinions? will be getting an older yammy surround rec. with pre outs back soon from having some resoldering done. until then without a rec. with pre outs will i be using for stereo listening for now. also the manual online shows a sub being connected along with other speakers, can a powered sub be made to use in this way. i have no experience with any separates so any info would be appreciated.