Buy another sub and you can, not too sure if that amp is 2ohm stable(parellel/parellel single sub will give you 2ohms,2 subs like this will give you 1 ohms,series/parellel 2-subs will give you 4ohms,series/series 1 sub will give you 8ohms.)Prob any way you go,it will possibly cost you pretty much the same if you buy a decent amp, or another sub..Its up to you,if you want a pair of subs, or just run a single sub.I also have an amplifier that I should be retrieving back that will bang the living crap out of that sub for like $130, and is 500rmsx1 at 4ohms and at 12.9v Zed Made amp US Acoustics 2150.My buddy at work needs it but havent yet seen the bread..lol Pm me if you need ask anymore questions, I have several amps that I wont rake you on that may work just fine, and have real power that the RF cant touch.Your choice though.Sub or amp, or new sub for 4ohms load?//content.invisioncic.com/y282845/emoticons/biggrin.gif.d71a5d36fcbab170f2364c9f2e3946cb.gif