now this is by far one of the best subs ive ever own are heard..
my first setup was trunk car pontiac G6
one 5000watt golaith amp
2 9512gs dual 4
i hit 146.7 and held it for 30 seconds for usaci street beat final score 146.3
now i got the z2 amp and it went to 148.4 and climbing but i blew the z2 so i got out of the trunk car business...i really beat on the subs and the handle the power well i smelled them a few times and as long as you turn it down and let them cool they will be ok...i have 4 9512g and i will hit 152.m plus i hope...hope this helps sorry subs forward port in the middle and tune at 51 most all music too