I'm getting 2x DC Audio 15" LVL4 XL's for my '91 Acura Integra.... My plan is to build a 7ft3 box tuned to 30hz and fire the subs up (closer to the front of the car..about where the back seat would normally be) and the port up (closer to the rear glass)... I'm gonna push em with 2x Hifonics BRZ2400.1D's @ 1ohm.... my question is kinda simple... more or less, an opinion from experience... has anyone ran sub up, port up...and if so, how did it sound? I always ran sub up, port back or sub back, port back... this is my first time firing both up. I'm thinking it should hit nicely off that hatch. Just wanted to get experienced opinions. Thanks guys.