Probably a stupid question, but trying to avoid buying a new turntable. I have an old Sony PS-LX285 connected to a Sony TA-AX285 via RCA. The TA-AX285 only outputs using speaker wire. I'm looking to go from speaker wire to RCA to 3.5mm line in on a speaker. Can I just buy a speaker wire to RCA adapter (like this) then and RCA Y adapter {like this) for the line in or do I need to be worried about using a line level output converter too?