Hey, this is what i got: 1x pioneer sub ts-w3002d4 @2ohms=1000rms QCA3500D amp; 2ohm=1750watts rms enclosure: 20"x16"x13" port size: 2"x11.5" everything on my car is stock and i think my amp is putting out a little less than what is rated performance wise, i dont think that my sub is performing like it should, my excursion is nothing compared to what I see on you tube and im not sure if it is because of my enclosure. I know that I can get better power if i upgrade wiring but I think I should be getting more out of what I already have. I want to try a different box, does anyone have any suggestions on sizez and I dont know much about tuning but im not getting high end bass nor very low end bass Im looking to make a box that will maximize the performance of my sub while on a strict budget, at least until i can upgrade my power supply for two of these subs i believe the largest recommended box size is 1cubic ft. but I'm seeing larger boxes with better excursions with less power. Any on with some opinions or insight please respond. Thanks in advance