I don't know if this is possible with an R44, but when I first got my R4, I switched on the "Limiter" or whatever it's called. I cranked the hell out of the gain, and the levels wouldn't get past -6. When I listened afterward it sounded like crap, insanely compressed, could easily look like brickwalling. Then I put gaf tape over the switch to make sure I never did that again.