This is a all in one collection. It is enclosed with 2 subs. Each of these sub can handle 400 watt of RMS power. It is also packaged with a 1500 watt amplifier. It has a cone made of mica-injected molded resin. So it stays on size after hours of playing. It is fully enclosed with two 12 inch subs. So you dont need to look for any other things. Just buy this pakage, connect the wires and you are ready to play it and have a next level experience. visit us: https://outdoorsumo.com/best-mtx-subwoofer/