well, what are you putting it in for starters? if it's a trunk install, i might go with a pair of 12's, suv, probably a single 15. the biggest thing is to have whatever you go with properly tuned.... that is 90% of the battle. kicker is not as bad as everyone says, but they do now fall in with the stuff like rockford and jl, where some of that cost is going right to buying the name. i was around doing thid **** when kicker was still what thier name is riding on. yes, the quality of everything has dropped, but not to the point that it is junk. it is still good, just not great. if you buy a 750, well you get that and a little more, not something like 400, which is what a **** brand would do. their subs, you do now more than half a decade ago, you do have to be more carefull with for cooking, but they are still nice, imho.