Why waste money on cable. Get the Optical Tosklink. They sound best, if yours available.
Here is the order from the best to worst.
1) ST GALSS OPTICAL (little cable dependent, mean you could buy cheap optical cable)
2) TOSLINK (little cable dependent, 6 feet for $14.99 at Fry Electronics)
3) XLR - (cable dependent, from cheap to very expensive)
4) RCA - (Cable dependent, from cheap to very expensice, or use could use your regular anlalog interconnect. Be experimental !!!
Hope that help.
Regards
William