anyoine no anything good about them i got 2 12s for 80 bucks a pop at walmart and love them there the dual 4 ohm voice coils i hjad the single voice coil but wanted louder. i got a sony thousand watt amp powering them it hits hard but not loud enough but im on a budget think of gettin another amp and hookin 1 amp up to one then the other up to the other subs how long do you guys think they would last rated max at a 1000 wat and rms is 350