For the price, Crystal Clear Audio Cables are the only cables that I know uses the beat purity 5N on the Master Class model and 6N on the Magnum Oppus model. I have listened and compared them to lots of different brand like MIT, Kimber Cable, Audioquest, Transparent, and Nordost. To me, Crystal Clear is more refine, very clear, better sound stage, and very fast. The built quality is very heavy duty, durable, presentable, and very quiet.
