ok so im designing a box for two 12 inch xcons, ported going into my 2007 scion tc(Hatchback). Right now i have a decent box but its time for a rebuild. My box right now is 40.5 inches wide, 20 inches deep, and 17 inches high behind the rear seats. Its tuned at about 29-31 htz(not too sure). It does a 143.7 on the meter sealed up on the glass. No deadening, no beauty panels. But my concern is that my port is an Lport on the drivers side, it only goes halfway across the box so one woofer is above the port and the other is not. Im worried that the sub above the port is loading off of it and the other is not. If it is i want to fix this, so a rebuild is underway. It has been almost a year with this box so i might as well. What i want to know is, what is the best placement of the port and woofer? Sub up/port back? Sub back/ Port back? Sub forward/port forward? sub up/ port sidefiring? Sub forward/ port sidefiring? Sub back/Port sidefiring? Im using winisd to help design it and also using google sketch up. I am going to be putting two 12 inch xcons D1 woofers on about 2400 rms(soon to be ALOT more tho) What amount of port area do i need for the enclosure? will be updating this thread with more info as i go, along with shit loads of questions. Also going to design each enclosure and post a pic from sketchup of it along with specs, so i can get some sense of confirmation. kinda doing this to see if a better design will put up a better number. still with no deadening and no beauty paneling. Then will add beauty panels and test again, then remove it all and deaden the shit out of the car and see what it does. IDK why i wanna do that, jus kinda curious i guess.