Use conduit and solder the connections @ the speaker.
This topic came up not to long ago, Larry suggested the low volt lighting cable, but cautioned that it is most likely not CL 2-3 rated, I would also agree with that.
Use direct burial cable, class rated and will withstand the elements.
my .02
What part of "A well regulated Militia, being necessary to the security of a free State, the right of the people to keep and bear Arms, shall not be infringed." do you not understand?
