Cables for Speaker level Inputs for Sub from mono amps ?

Just wondering if i should use the same cable as my speaker cables which are Jps Labs SC-3, Hard to find and expensive. My sub is Martin Logan B 212 with ESL 13A. I think it is better than running from preamp. Anyone using different cables or it really does not matter. I have connectors just need 2pr. unterminated cable.. Any suggestions on what cable would be good with that combo. Do not think i seen any forums about this. Thanks for the help.
Be Well. Mike