Just a hint -- try a sniff-test before you buy. If you can detect any PVC (like a new garden hose) smell at all, do not buy the cable for audio. PVC is a not a good-sounding dielectric. ALSO, that PVC smell is actually the out-gassing of chloride gas; guaranteed to corrode copper stranding over time.
Another speaker wire possibility at Home Depot???
As an alternative to the "decorative" orange and gray stripe 12 guage wire that has been discussed in several previous threads, I am wondering whether anyone has used another 12 guage wire from Home Depot under the brand name Carol Landscape Lighting Cable. It is low voltage for use with 12-volt outdoor lighting systems, black casing with one conductor ribbed for polarity identification and much more flexible than the orange/gray extension cord wire. I intend to give it a try and will report back to this thread at a later date. Meantime, would welcome any comments and/or any experiences others may have encountered with this cable.