Any decent cable should work fine.
If you use speaker level to sub, you could probably even get away with magnet wire....if you didn't use sub in 'pass thru' mode.
If an issue exists, it is that you shouldn't be worried about capacitance on a sub cable. Attenuating some highs couldn't possibly hurt.
If you use speaker level to sub, you could probably even get away with magnet wire....if you didn't use sub in 'pass thru' mode.
If an issue exists, it is that you shouldn't be worried about capacitance on a sub cable. Attenuating some highs couldn't possibly hurt.