New to the forums, bare with me.
I'm fairly new to car audio. I have Two Pioneer TS-W308D4's in a vented box.
1400 max/400 rms. Dual 4ohm voice coils. I'm feeling the need to upgrade my amp to push my subs harder (the one i have now is a Sony xplod xm-zzr3301) and I need your recommendations...