Soudqubed subs will give you the wow factor, if installed in the proper box. In my experience, it's 20% equipment, 80% install. There's lots of brands to choose from and each one you can't really go wrong:
DC
Sundown
Soundqubed
PSI
Ascendant Audio
FI
SSA
Incriminator Audio
American Bass
..... etc.... There's lots more.
I think you're going about this the wrong way. You should be choosing your sub(s) based on what power you will be running and how much space you have. Hope this helps.