In regards to cables. Tell the dealer you will use your existing cables, then call Iconoclast as they will offer a 30 day money back guarantee. I borrowed the Try cables from a local video dealer I purchased from to do the compare. Turned out to be a good move as I saved enough to help pay for a better dac. As for power cables, I think improvement is dependent upon your setup and the house/rooms electrical wiring. I plan to investigate/upgrade power cords last.