This is by far the best low cost cable I've ever tested. Use all 4 wires for a single cable run, if you want bi-wiring you'll need 2 runs or you'll lose bass. I used to use Chord Carnival bi-wire and it was weak in the bass with a very edgy mid and treble. I replaced them with the Audioquest in a single run. What a difference. The bass is very deep and punchy, smooth mid and treble. I've now changed to Audioquest for my centre speaker with the same smooth sound over previous QED cable. I've got a slightly bright system and this cable has tamed it very nicely. If you have a more 'normal' system, then these might seem slightly dull. I couldn't be more pleased. What HiFi award winner 2012/2013.