There is a slight difference in running 2 separate cables to the L/R inputs on the subwoofer vs. using a Y adapter at both your preamp and sub. On my system, the 2 separate cables sounded a little better. It's not a big deal and many wouldn't hear any difference at all. I was using a VMPS sub and VMPS ribbon speakers. They have very good definition.
Subwoofer cable question for those in the know...
My preamp has an extra set of line level outputs to drive a powered sub.
Would there be any advantage to running separate L/R cables since it is purely a bottom end booster, or can I Y the signal out/signal in and run just one cable between pre and sub?
Also, what is the difference in construction between "subwoofer cables" and ordinary shielded RCA cables?
I haven't seen anything definitive, and I assume they are designed to carry just a low frequency signal better, as opposed to full range signals?
Advice, of course, is greatly appreciated.