Belkin PureAV AV20500-25 25-Foot Subwoofer Audio Cable price : $12.67 See Detail Monster Standard THX-Certified Subwoofer Interconnect Cable (16 Ft) price : $16.72 See Detail Belkin PureAV AV20500-15 15-Foot Subwoofer Audio Cable price : $10.92 See Detail Monster THX Certified Subwoofer Cable price : See Detail