hey guys i just purchased a hifonics zrx1500 off onlinecarstereo and i noticed that they are sending me a zrx1800. im gonna be pushin one alpine type x 10 sealed (mostly listen to rock) which is 1000rms. the zrx1500 pushes 1000rms @2ohms and the zrx1800 is 900rms@2ohms. Does anyone know if i...