I bought a Marantz at Goodwill and now I have a few questions


Got a SR-18U Amp at Goodwill this afternoon. I know this is a highly outdated HT Amp but better than the Onkyo I have now (I think). I am looking for help on the best way to wire this behemoth. My main question is the best way to set up my turn table. I listen to vinyl 75% of the time. My Onkyo has a dedicated Phono port with a ground screw. How should I try this with the Marantz? I have a CD player which is easy but I also have bi wired Sonus Faber speakers and a powered subwoofer to move over as well. All opinions (including throw it out) are appreciated. Just thinking those 140Wpc could really make my room. 
telemarcer
Yes, the inexpensive Project is an excellent sounding phono stage. The only thing lacking is an extra 0 in its price (for snob appeal)!
Great, thanks. I think the Onkyo will find space in one of my sons rooms. They tend to get most of my hand me downs.
That SR-18 was TOTL in 20002 and cost around $2K! You got a bargain for sure! Use and enjoy it as a 2-channel amp!
I appreciate your help. Any additional input in regards to the speakers/subwoofer? 
Keep the Sonus speakers for now. Bi-wiring IMO does nothing! If you can, run your sub using long rca ICs from the "sub out" jacks on the Marantz.