it gives 2500 watts @ 2 ohms. if you want 2500 watts for your pair of l7's, then get two dual2 speakers and wite the woofers in series then parallel them together.i'm getting 2 15" L7 and want to run alot of power to them, i'm not sure if the zx2500 will do it or not because it is set to run only 2ohms
a zx will run @1ohm and if you have a stock electrical system then forget the HK4000 and youll have to upgrade to run a ZX2500 to its full potentiali want to run the 15's at 1ohm, i have a standard electrical system, but i am farely new to car audio and i want a bad system