Which receiver for better sound with vinyl?

I have an old stereo system from the '70's: Nikko NR-515 stereo tuner/amp, Marantz TT 1060 turntable. I also just put together a new home theatre setup: big Samsung plasma TV, Denon 1910 avr receiver, and Jamo 606 5.1 speaker system with Jamo 250 sub. I'm trying to figure out if I'll get better sound for music (vinyl) with a phono preamp and hooking up my tt to my new denon receiver, or keeping the two systems separate. If I keep them separate and continue using my old stereo receiver with the tt, could I hook it up to my new Jamo speakers, since they have two sets of speaker clips on each speaker to permit bi-amping? Would my Jamo speakers likely sound good with vinyl? Obviously, I would only use one input at a time!