Ok, will a slot port work if it is U shaped? I was told the port would be 26 inches long when it's done. I didn't think you could do that with them and sound good. The guy building it said it would start from the left side of the box, go to the back, bend, go across the back, bend, and back up the right side. Will that work that way? I just want to know before the guy builds it. It is for a 12" CV Vmax. The port is going to be 12"x 2" x 26".