How to do a blowthrough correctly?

[KHARPS 10+ year member]

How much port area did you have in that box Trevor?

 

[SWFL 10+ year member]

this one?

was that 2 12's or 2 15's?

 

[TnT_Sounds 10+ year member]

How much port area did you have in that box Trevor?

beats the hell out of me I didn't design it.

It was a rear loading horn though.

 

[dB-SPL 10+ year member]

this one?

Yes, this one. Looks like a sh*t ton of port area. What kinda box is it? Curious as to how you got the baffle like that without splitting it off the box. My cab flexes a fair amount from the bed while driving.