Wayne Parham Messages: 18791 Registered: January 2001
Illuminati (33rd Degree)
I think what you're calling slot loading is designs that have throat area smaller than driver diaphragm area. This increases compression ratio. Some designs have throat area equal to diaphragm area, some have throat area smaller than diaphragm area. Check out the Hornresp program and play with a few designs and you'll see what effects various changes like these make to overall performance.