Bascially I need to know if these components will go together good and if not, then what do you guys recommend?

Pioneer DEH-P9300 Head Unit

Rockford Fosgate Punch 600.4 75W x 4 Car Amp

Rockford Fosgate FNX2614U 6-1/2" fanatic X Component System

JL Audio Stealthbox 10W3 Subwoofer

Do you think I need a more powerful amp, maybe the 800.4?

 

Question - does the Pioneer H/U have an internal amp? If yes, first thing I would say is consider a pre-out only unit especially since you already have an external amp listed.