@andrewilley thank you for deatiled explanation.
So to use graphic eq preset, i have to set PA's eq to graphic mode, and also set it Band limit to 32 (the least) and the frequency level 20to20 (for xm4)
But in the graphic preset file for xm4, there is 127 bands ๐คฃ
Dumb question isnt it...
So the PA gonna automize it or what?