Anyone know how to setup a sub?

No, I got it working guys. I didnt realize the sub was a DVC because it was already in the box from when my brother had taken it out of his car. I took the sub out and man what a wiring mess my brother and his friend did. It was wired at 4 ohm. So I just did all new wiring and wired it at 2 ohms. The amp actually isnt bad, the sound quality is fantastic, no noise, and the sub bumps even on the lowest gain, when I turn the gain up to half way it hits HARD, I didnt even turn it up all the way because there was no need. I am not trying to win a bass contest just want to have good sound quality so this amp will do. I am not sure if this amp is 2 ohm stable so I am just going to run it until it blows up or something, I have no complaints about this amp though other than the fact that you need a DVC or more than one sub (in which case it wouldnt have enough power to power both), but for my case its perfect. Thanks for the help guys.