Normal
Re: No compromises front loaded double 18” cabActually, I am suggesting/guessing that there's a boundary condition across the center since each half is the mirror image of the other. (This assumes that both drivers are driven with exactly the same signal and that the upper and lower ports are identical in area and depth.) It follows that if the ports were at the ends - top and one at the bottom - (and ignoring the floor in the photo) the ports might have to be a little deeper/longer for the same tuning? Maybe I'm completely off base.
Re: No compromises front loaded double 18” cab
Actually, I am suggesting/guessing that there's a boundary condition across the center since each half is the mirror image of the other. (This assumes that both drivers are driven with exactly the same signal and that the upper and lower ports are identical in area and depth.) It follows that if the ports were at the ends - top and one at the bottom - (and ignoring the floor in the photo) the ports might have to be a little deeper/longer for the same tuning? Maybe I'm completely off base.