djspinmaster

thanks for the info decaf ive learn alot.. now i can do my box..

so i will always divide the port width by 2?? but if i put 22 inches port length in torres box calcu the net value will become 6.5 cu ft.. so the design of loudNlow87 is 6.5 cuft not 6 cu ft??

the length of the port is 28 inches?? why in the diagram you show is 22 inch only??