4 DC Sound Lab lvl-3 15's in GMC ext cab truck

So its a wall with subs firing foward and port firing straight up into the roof? Am I seeing it right?
If so, why the hell would you do that?
The port's are firing up the sub are facing forward... And thats how

I wanted it to be...I have heard it both ways firing back, down, or

what ever, Dont seem to make a difference to me in a ext cab truck

 
Thanks it does sound great but its for sale now... lolIts been in there since mid december and It took

me this long before I started to miss my back seat
I know what you mean.

I would love to wall off my van but my kids are young and still love rolling around in the back of it.

I'm trying to design killer system and still retain the fun factor for my kids.

 
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