I am replacing my old system due to blown voice coils. I am getting 2 level 14 12 inch dc audio subs. Both the subs will be running at 1400 wats rms and i will need a powerful amp to do so. The subs were more expensive than i planned so i need a amplifier on the cheaper side. Also i need an enclosure for the subs. I would prefer ported because apparently they sound better than my current sealed set up. My car is a 2009 honda civic 4 door. I would be willing to use all available trunk space and use the rear spare tire well as well. Can anyone recommend a good box and amp to put and a rough estimation of how much these 2 items will cost? Im assuming the box needs to be custom built.