What I find very confusing is that, despite the fact that the FRFR mode uses the high frequency driver, it sounds dark, muffled and lifeless compared to LF Raw or LF Flat, neither of which uses the HF driver. I can certainly dial in a nice tone using LF Raw or LF Flat, but the problem I see is that I'm hearing something nice on stage, and presumably I'm sending something dull and lifeless to FOH (as the PC+ is just passing through the input from the modeler).
What setting is a good approximate of a full-range PA speaker? FRFR? And if so, why does it sound so dark?