Quicksilver Interconnect & Speaker Wire

I am looking into the purchase of Quicksilver Audio V4 monoblocks and their preamp. Both Mike at Quicksilver and a dealer I have been speaking with highly recommend the quicksilver cabling. The speaker wire is "pure silver" and retails for $340 for a 4 ft. pair. The interconnect retails for $90 per meter pair. The reasonably low pricing tends to scare me... I currently have decent up to date Synergistic Research (sig 10x & phase two looking glass) and am hesitant if I will be taking a step backward by going with the quicksilver wire.

Anyone have any experience with Quicksilver speaker cable or interconnect?

Thanks for any help.