Want to build box something like this, fiberglass with MDF top (stole picture from Google)
Two 8” Subs require .6 cf per
1.3 cf total area built
Square port 6.25 “ wide X 4.75” deep X .75” height = 22.26525 sq. in.
Specs on Carsterio.com call for min 4.72” port length with 22.27 sq. in of port space
11.5 mm Xmax @ 37 hertz
Question # 1: Is this site’s calcs accurate for this setup?
Question # 2: Looking at the right hand side of the box, will the narrow passage leading to the port act more like a slot port or will this illustrated setup work?