I went to 2 "high-end" speaker shops in town yesterday to buy a new sub. $700 bucks later, I got the sub, but it came with a rather flimsy, cheap looking line-level cable. When I asked the the salespeople about cables for the sub, one person told me to just use a regular, good quality gold-plated RCA audio cable, the other told me to use a Monster cable specifically designed for subs. He explained to me that the Monster cable is designed to enhance certain (low) frequencies. I'm not sure if this is the job a cable is suppose to be doing, or if I should just stick with an normal RCA and let my sub and receiver figure out the frequencies. Any suggestions? Thanks.