Acoustic Research PR-136 Pro II Series 5.1 Sacd/DVDa Audio Cable Set (Discontinued by Manufacturer) Corrosion-free, 24K gold-plated connectors for improved performance, each connector color coded using CEA color standards along with RF, LF, RR, LR Precision machined CNC metal connectors with precise and secure fit ensures minimal signal loss Larger 22 gauge 99.97% pure, oxygen-free, copper conductors for the most accurate audio signal transfer Shielded with 100% overlapped mylar foil and 95% braiding for isolation from noise/interference Twisted pair balanced-conductors specially designed for audio to insure signal integrity