Hi Streetdaddy:
I have Rowland Model 6 amps, Rowland Coherence II preamp and Rowland Cadence phono.
I run Kimber Select all-silver 1030 interconnects and Kimber Select 3038 all-silver speaker cable with my Rowland equipment. Both Stereo Exchange in Manhattan and Advanced Audio in Cary, NC, use Kimber Select all-silver with Rowland as well. Really good silver, and it is safe to say that Kimber Select silver is "really good", does not, in my opinion, sound inherently bright or ring, etc. To the extent it sounds "off" in a system, it is because silver passes a lot more information from the midrange up than silver and will show grain and other garbage produced by mediocre source components. My Kimber sounds totally natural in my system and is not the least bit bright or colored.
Rowland evidently uses Cardas internal wiring and I also used Cardas Neutral Reference between my Coherence preamp and amps for several years. It sounded very good, but at least in my system, was not comparable to the Kimber Select silver (the latter is a real step up).
The only down-side to the Kimber Select is the high cost.
Good luck.