Need help picking subwoofer cables interconnects

I'm about to pick up a pair of ACI Force XL subs and need ICs to hook them up to my preamp's second set of outputs. I want to keep it under $100 used each. Doesn't make a whole lot of sense to me to spend a lot just for ~45 Hz and below when most of the details and spacial cues are in the mids and highs. Plus I just went a little over budget on the subs, a new amp, and a new DAC, and still want to upgrade my amp PC, get a Monarchy DIP, replace fuses on the amp, upgrade the power outlet ... well, you know how it goes.

Thanks!