i got jbl gto 6x8s and 5.25s comin UPS right now have the rms power handling i need an i have always like the jbl speakers i went alpine for awhile, however after this one blew im really rethinking them. i have alpine type s 6x8s and 5.25s right now and one is blown the gtos handle a better range of rms wattage and according to jbl were made for anything headunit or amp power can throw at em. i have always liked rockford fosgate subs but have an alpine type r on a 1000w amp in a ported box, although considering a sealed as i mainly listen to rock and metal but this sub is a beast it plays the bass on rock and metal perfectly and keeps up great and barely even moves at full blast as i have the amp just under half gain for amp cooling and so the sub can keep up better and still be as loud as i want and need it and the headunit powers the speakers just fine as i can hear them crisp and loud over the sub and every level of sound is heard. i am an audio fanatic and want my music and even movies at my house to sound as full and good as possible