@douglas_schroeder has it correct.
If you want an easy and inexpensive, but good upgrade to the leads between the amp and the subwoofer, go to Lowes or Home Depot and pick up a couple of spools of Southwire 10 gauge THHN stranded copper wire, red and black. On each run, wind the cables around each other (twisted pair) at maybe one to two complete turns per foot.
The 12 gauge stranded version of this stranded wire wound two to four turns per foot is really quite good for amp-to-main speaker runs.
If you want an easy and inexpensive, but good upgrade to the leads between the amp and the subwoofer, go to Lowes or Home Depot and pick up a couple of spools of Southwire 10 gauge THHN stranded copper wire, red and black. On each run, wind the cables around each other (twisted pair) at maybe one to two complete turns per foot.
The 12 gauge stranded version of this stranded wire wound two to four turns per foot is really quite good for amp-to-main speaker runs.