Belden 8723 is used for audio control and instrumentation. This cable has a nominal impedence of 45 Ohm and comes with 2 pairs of 22 AWG stranded tinned copper conductors. This cable is protected from RFI and EMI interference by a 100% Aluminum foil-Polyester tape Beldfoil® shield. Each conductor is individually shielded and insulated with polypropylene. The jacket is CM rated PVC.