hx15

hey bros and **** gals i got a 2 part question first i have a 05 maxima i put a rockford fosgate HX2 15 in my trunk in a proted box i am currently using my JBL GTO7001 to run it (2 channel even tho it says mono 700 rms/1400 peak.....425 rms4ohms) its bumpin but im expectin more, now is this...