Mine are all General Electric - which is one of the big guys, I guess, but not so big in HiFi.
I buy the 15' length so I can cut it in half and make two 7-1/2 foot speaker wires.
And, I can buy these neat little RCA plug thingies and put them on the end of the wires and connect my CD player or 8 track up to my amplifier.
Sounds Great