Agree with sleepwalker65, Belden 1696a is a twisted pair with drain, CM rated. Another similiar choice would be Belden 1800F, which is CL2 rated.
Retired now, but worked over 25 years in the A/V industry with ~15 years of designing and supervising install of home theater. Have listened to many subwoofers connected with quality RG6 and twisted pair audio cable. Twisted pair sounds better and also, there is an advantage that the shield is not used in the path of the signal like RG6.