I have never owned any of their products. From what I can tell from a quick look on the web, the A/R Performance series looks to be a well-made, reasonably priced series of cables. It looks like they are foil-shielded RG-59 type coax cable, which is pretty common for high-flexibility interconnects. I couldn't find any specs, although I would imagine they would be the same as for a like-built product. If you are not having any problems with audio or video noise my guess it that there is no reason to swap them out.
