I have 2 kicker L5's 12" subs that are rated 1200/2400watts, Kicker 1500.1 amp specs for that can be found on Kicker.com. Also included is a 5 farad tsunami cap, 50feet of kicker 0/1 gauge wire ( for those who dont know wire size its the biggest you can get for cars... it its like a cable..rca's also come with this. This fits in the mazda 3's in the trunk with room. The system was used for about 45 hours, no flaws and the box is still under warrenty, its a brand new box from kicker renforced because the last box broke because the subs were hitting to hard for it. Im asking 675 for everything, I would prefer to have it pick up but if your willing to pay for shipping then its yours.