I recently bought Onkyo TX-NR676 installed 5 ceiling speakers 3 on front Acoustic R191 and 2 rear for surround Pyle PDIC60 so my question is I need to add a subwoofer to my receiver the receiver has 2 RCA On the back 1 says subwoofer and another says subwoofer PRE out. now I have a subwoofer laying around it’s a pioneer model TS-W309D4 it says 1400w max - 400w Nom the box has no power to it so I believe it’s a passive sub, is it possible to connect this sub to the receiver and use it as subwoofer or do I need to buy additional equipment, parts to use it or better to buy new power subwoofer