Hi Olivier,
Frequency response will always be sensitive to the room you are in and the louder you go, the less likely the room will be able to absorb that sounds, so getting a loud articulate response in a particular location can be tricky as reflections can cause chaos.
I use my own purpose built speakers (I didn't design them!) as I can mix and match the space I use them in. Most of the time, IEM or cans is enough for me.
LF should really be covered by the PA, it's omni directional below 100Hz and as long as the highs lead the lows, you won't notice any phase issues within a few hundred ms. Adding multi-purpose monitors aimed at FRFR above 100Hz should serve you well.
Are you only interested in yourself hearing the kit or do you want it as a back line?
Frequency response will always be sensitive to the room you are in and the louder you go, the less likely the room will be able to absorb that sounds, so getting a loud articulate response in a particular location can be tricky as reflections can cause chaos.
I use my own purpose built speakers (I didn't design them!) as I can mix and match the space I use them in. Most of the time, IEM or cans is enough for me.
LF should really be covered by the PA, it's omni directional below 100Hz and as long as the highs lead the lows, you won't notice any phase issues within a few hundred ms. Adding multi-purpose monitors aimed at FRFR above 100Hz should serve you well.
Are you only interested in yourself hearing the kit or do you want it as a back line?