How does good sunwoofer cable differ from a standard phono cable. Would a digital co-ax be better than a standard phono. Would there be anything wrong with using a single phono cable from a stero pair? Just I see specalist sub-woofer cable for £50 (well its in dixons but i think its from ixos) and i have to ask myself is there really a difference. I'm currently using one of a stero pair QED cable (as the other is involved for bi-amping my centre).