RCA terminated subwoofer cable

I’ve been searching for a single 20 foot subwoofer cable (or interconnect if you prefer) with double RCA termination (left & right) at both ends. I’ve seen many single end cables which would make it necessary to buy 2. Does anyone make such a cable? Prefer to pay under $300 used. Also interested in a pair of XLR interconnects. Prefer an interconnect that DOESN'T lean toward the warm sound of neutral. (Sold off a pair of Audeze LCD-X's because I didn't like its warmth). Neutral cable recommendations.  Thanks.