Thanks Odysis. Your more than welcome to use what ever you'd like.
I think I just figured out why I am trying to confuse myself. I am thinking in terms of pushing air into the intake duct. The way I am thinking is that if you push air through a small opening, not only will its speed increase, but the pressure would have to increase since the air will be resisting going through the small opening. Now take the intake and stick it on the front of a fan. Go to full power and what happens. An area of low pressure (vacuum) and high velocity is created at the small opening and lower velocity and higher pressure is created at the large opening.
Am I right this time