L7, I won't link any of the articles this time(they're all over the board), but just point out that this is an area of audio rife with charlatans preying on the gullible. On the results that you'd get from spending more money your "if at all" term would apply rather than "very minor". Whatever your present cables are, if they're of adequate gauge(well, might as well link the
article , after all)nothing can be improved. If you get any included cables with your equipment, use them; manufacturers don't sabotage their own products. For the sub cable, any cable with an RCA connector on each end works; a shielded coaxial cable is usually suggested, although it may be a bit of overkill in most situations. In any case, it should run less than a dollar a foot.
