I have run an axe fx for 5+ years now straight to the PA and with K10 and similar speakers. Totally perfect for me and what I do and I use a range of sounds.
To be honest, your FRFR setup (K12s with subs) was a bit of overkill for a guitar rig. The subs will make it absolutely more difficult to create "guitar tones". I usually cut all the frequencies that subs make for my tones because it just gets flubby and loses definition.
To me, the most difficult part of transitioning from a real amp to a digital modeler of any type with FRFR PA speakers is the frequency range now available.
A guitar amp and cab sort of has its frequency limits and easily/quickly sounds like that familiar sound we know and love because that's really all it's designed for.
The axe into a full range pa with extended bass frequencies adds all sorts of things that make your amp suddenly sound distant, bassy or harsh, disconnected etc.
It's best to think more like a sound engineer than a guitarist when setting up the Axe on a full range system.
I usually cut the bass frequencies and treble for my distortion tones, either in the amp or cab block. Kind of an "upside down smiley face" EQ. A little goes a long way. That's a VERY general statement though
That said, there has been much success with all the ways you've tried connecting it. But if at the end of the day it's not for you, then that's what it is. Maybe not for you "right now" but do play whatever makes you feel good. Good luck!
To be honest, your FRFR setup (K12s with subs) was a bit of overkill for a guitar rig. The subs will make it absolutely more difficult to create "guitar tones". I usually cut all the frequencies that subs make for my tones because it just gets flubby and loses definition.
To me, the most difficult part of transitioning from a real amp to a digital modeler of any type with FRFR PA speakers is the frequency range now available.
A guitar amp and cab sort of has its frequency limits and easily/quickly sounds like that familiar sound we know and love because that's really all it's designed for.
The axe into a full range pa with extended bass frequencies adds all sorts of things that make your amp suddenly sound distant, bassy or harsh, disconnected etc.
It's best to think more like a sound engineer than a guitarist when setting up the Axe on a full range system.
I usually cut the bass frequencies and treble for my distortion tones, either in the amp or cab block. Kind of an "upside down smiley face" EQ. A little goes a long way. That's a VERY general statement though
That said, there has been much success with all the ways you've tried connecting it. But if at the end of the day it's not for you, then that's what it is. Maybe not for you "right now" but do play whatever makes you feel good. Good luck!