Originally posted by SiClone
It should be Mono for your sub.
A couple question for you though: You're running your amp in bridged mode right?? What's the filter for (there's nothing about a filter in Crutchfield's description)??
If it's bridged, then it's already set to mono.
It actually wasn't set to mono. It is now though. I turned both the mono option and the filter on.