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I have been struggling to get enough body from my guitar sound at function gigs. It sounds great in my in-ears and also standing next to the amp so its not the mic placement or the amp sound itself but something to do with the way the sound is dispersing and mixing in with the band and PA sound. Its an open back 2x10 combo (Fender Prosonic) so my initial thought is to try adding a 4x12 underneath although this is a big logistical PITA.
I've compensated by boosting the bass frequencies rather than cutting them in the PA but as these are smallish venues the sound off the stage is more dominant than the PA so it would be better to get that going.
I raise the amp on its flightcase - would you think being on the floor would be better? Or angle the amp to the side of stage?