During the presentation, it is mentioned that it can be useful to use smaller speakers at the lower end of the array in order to be able to set larger angles between the individual elements. (59:10) It is also discussed that the same gain should be used for all elements in order not to change the behavior of the low frequencies in the area near the array. (1:07:46) How do smaller, quieter speakers behave at the bottom in terms of gain shading? Does it make sense to make the smaller speakers louder so that they correspond to the SPL of the elements above?
When using a downfill the higher allowable inter element angle means you can fit more elements in a smaller area meaning more SPL so actually the difference between the downfill and the other enclosures in the array with a different model should be negligible. L Acoustics thought about this and that's why systems that are made to be used together have the same 8DB of headroom so they should be within about 2-4Db of each other when designed correctly which isn't all that bad at all.
