This coaxial cable is used for antenna cables of mobile phone base stations. It is for outdoor use and is very hard and not suitable for audio.I want to add something to this very valuable debate about cables. As usual, debates about cables belong to those most valuables.
I am using as RCA cable a coax one with operational frequency up to 18 GHz, DC Test Voltage 1600 V, Insulation Resistance 100000 Mohms•km, Jacket Spark Test Voltage (rms) 5000 V, Peak Power 6.4 kW etc. I compared really many RCA cables by ear and this one IMO beats many cables costing hundreds of dollars. It costs bargain per meter, but they want to sell you kilometers. Highly recommended!
FSJ1-50A, HELIAX® Superflexible Low Density Foam Coaxial Cable, corrugated copper, 1/4 in, black PE jacket, MFR: Andrew / Commscope
FSJ1-50A, HELIAX® Superflexible Low Density Foam Coaxial Cable, corrugated copper, 1/4 in, black PE jacket, MFR: Andrew / Commscopewww.rfparts.com
If you want to use such a communication coaxial cable, we recommend the RG type Teflon coaxial cable.