Port Size for 4406 & L20t

[Tejaus]

I have searched the forums but have not been able to find the size of the ports for these speakers. Anyone have one they can measure for me?

thanks

[duaneage]

4 inches long by 1.75 inches wide.
This only applies if your using the same exact volume and an inductor in the lowpass of the crossover with the same DC resistance.

I prefer to test cabinets and adjust the port accordingly rather than rely on duct measurements when using drivers.