Cables for KRELL TAS/HTS 7.1, B&W Nautilus 802

Hi, I was wondering which interconnects and speaker cables would go best with this set up for the most silkiness, airiness, smoothness, and bass slam. The midrange is quite detailed and forward and bass is pretty good already with standard cables.
When I had a HTS 7.1 and N802's I used Cardas GR bi-wire speaker cables and Cardas GC interconnects with very good results.
I used Transparent Reference throughout when I owned Krell KRC-HR and Krell FPB300 driving my old B&W801Matrix III. They were fantastic.