Get another L7 and then run the 2k watts. I personally believe 2k will do some damage to the sub. If you set your gains and everything so you're sending a clean, unclipped signal, you're not going to be taking full advantage of 2k watts. You'd be much safer, louder, and better off with 2 L7s off 2k watts if you can do the space. Otherwise, checkout an mtx 1501d, or another solid 1500 watt amp @ 2 ohms. When I called Kicker a while back about L7s (I was either going to do 2 15s or 4 12s L7s), they told me 3600-3800 watts was too much for 2 15" L7s and would do damage obviously. They recommended 4 12s not only because it will be louder, but because it's better power wise. Hope that helps...