mesa 1x12 wide body port dimensions

[j4q0]

I just got a mesa C90 speaker and I'm building a 1x12 cabinet for it.
Does anybody have the dimensions of the port of the mesa wide body closed back cabinet?

 

[stephen sawall]

Look up the EV Thiel cab. Its the same cab pretty much. It's the TL806 cab.

 

[j4q0]

I do have the plans for the TL806, however the size of the mesa wide body has different overall dimensions.
Should I assume the triangular port has the same area as the 2 side ports on the TL806?

 

[stephen sawall]

I don't know. My guess is yes. The cabinet internal volume is the same or very close.