Dayton Audio SW-12 Subwoofer Cable 12 ft.
Excellent cable
This is a great-looking, well-made, and high-quality cable.  It could be used for any RCA-RCA connection, if you need 12 feet.  I actually used it for my new subwoofer.  Dayton makes all kinds of cables and other audio accessories that are high quality, and very reasonably priced.  There's no need to buy the stunningly expensive stuff from Monster or other such vendors.