if it wasn’t for the resonator I think I would be trying to make a clone-a-like of the cab with a Deltalite II ...The difference between the original Deltalite from the earlier Scout cabs (with the vent on the front dust cap) and the Deltalite II is pretty big! Can’t say for sure that there is any difference between the Mesa OEM speaker and a stock Deltalite II, but I used a stock one in my old Scout 12 for years and it sounded great!