Construction: 18 AWG, 7 strand bare copper, 4 conductors twisted and jacketed.
Insulation: SR-PVC.
Color Code: Black, Red, White, Green.
Shield/Drain: Unshielded.
Assembly: 4 conductors twisted and jacketed.
Jacket: PVC.
Diameter: 0.182 Nominal.
UL Rating: CMR or CL3R or FPLR; For plenum rated version, see spec. No. P40031.
Capacitance: 25.4 pF/ft Nom.
Velocity of Propagation: 55%.
Impedance: 73 Ohms.
Resistance: 6.92 Ohms D.C. per 1000 ft @ 68 deg. F maximum.
Temperature/Voltage: 75C / 300V (up to 300V; power-limited systems per NEC Art. 725 or 800).
18 AWG 4-Conductor Speaker Wire - Gray