Looking to upgrade need help

[ncacoates 104]

Hey guys im pretty new here and iv just got into car audio heavily in the past couple months. Iv been slowly working my way up and not i rest with a Memphis m3 15" and a pr500 amp. Question is what do you guys recommend for some serious bass. Iv been looking into a Fi BL and sundown saz1200 is that a good choice or do you think there is something in the 6-800 range for amp and sub. Im totally open to anything but id like to keep it a single 15 seeing as the box i just built is for one.

[///M5 2,833]

Can't help without box specs

[ncacoates 104]

I i remember right its right around 4.3cuft at 34hz and if i really have to i can always make another but id rather not.

Edited October 17, 2008 by MemphisMzd