Vanderkley cab size and speaker replacement?

[hedgepigbass]

Does anyone know if the Vanderkley 112EXT & 112MNT cabinet construction is identical, just fitted with different drive units for 300W & 600W respectively?

Are the crossovers and tweeters the same?

I believe the 12" drivers are made Faital but which models?

Edited Thursday at 11:48 by hedgepigbass

[ebenezer]

Same cab size,  but I think the mnt has a longer port