I was able to hear the difference on a modest Systeme Audio/Primare system at CES this year. The talented demo guy changed out the SPM reference for the Valhalla and everyone in the room was taken aback. These are the best cables in the industry regardless of cost and they are quite attractive, too. Check out Absolute Sound. Myles Astor gave them a "Golden Ear" award in what might have been the February issue.
