i don't know if you have noticed i was looking at boxes and why when there is only one sub it is on the passangers side and the port is on the drivers side? or is it just to late to be thinking
I think its more common in spl comps. If you see people do walls, mainly the ones I seen, the port is always on the driver side and subs on the passenger. I'm guessing this is so because at comps, they place the tl on the passenger side to get the best results. I'm not 100% sure, so thats a guess.
