What is puzzling is that when A/B ing you thought you had the sound. Then when you were in a band context it sounded bad. I’m assuming that’s a frequency issue. I’d definitely try the advise given above for the cuts and boosts on the EQ.
But remember you if you’re sending you amp signal with the power amp working you’re guitar amp’s power amp is also working which can get weird. A Solid state amp might be a solution if you want to keep your cab onstage. The most important thing, IMO, is that FOH signal sounds good.
I don’t think anyone has said it but you’ll probably struggle if you’re using the fx loop and sending a signal to FOH. In my mind you’d want two amp blocks. One with pwr amp on and cab simulation going to FOH. The 2nd with pwr amp off and no cab sim to the on stage amps FX loop. The AX8 can only do one amp block.
But remember you if you’re sending you amp signal with the power amp working you’re guitar amp’s power amp is also working which can get weird. A Solid state amp might be a solution if you want to keep your cab onstage. The most important thing, IMO, is that FOH signal sounds good.
I don’t think anyone has said it but you’ll probably struggle if you’re using the fx loop and sending a signal to FOH. In my mind you’d want two amp blocks. One with pwr amp on and cab simulation going to FOH. The 2nd with pwr amp off and no cab sim to the on stage amps FX loop. The AX8 can only do one amp block.