This Direct Burial rated speaker wire is also FT4 compliant. It is ideal for underground wiring because its outer and inner sleeve has been treated for exposure to soil and other underground elements. This is the same quality speaker wire used by professional installers to achieve high-fidelity audio when installing outdoor garden speakers.
Close-up of ThruSound Burial Series Speaker Wire:
Product Details:
Direct Burial Compliant Speaker Wire
FT4 Compliant: Yes
RoHS Compliant: Yes
Gauge Size (AWG): 14 Gauge
99.9999% Oxygen Free Copper Conductors
Conductors: 2
Outer jacket is premium grade, underground treated black PVC
Inner jacket is colour coded for easy installation (colours are subject to change)
Stranded conductors
Length: 50' (feet) / 15.24 meters
Incremental distant markers imprinted on outer jacket (subject to change without notice)