I just played a New Year's Eve gig in a large room with my ten-piece classic rock-horn band with a Hartke HD75 combo (gift from my daughter). I had PA support, and raised it slightly with an Onstage wedge. I never needed to go past 4 on the volume, and was even told to turn down by the horn section. There was a little lack of definition on the stage, but when I set it flat it became punchier at the same volume. I was thinking of it as only a practice amp, but--even at so-called 75 watts--this little combo really thumped and did everything I could have asked as an onstage monitor and more. It is not light at 47 lbs., but exudes durability. I kept the tone controls mostly flat throughout, but did edge the higher frequencies up toward the end of the night. Now, there is no XLR out, but my Radial Pro DI gave a great pre-sound with no hiss or hum; one could also feed the DI post via the return/send option, but I didn't try that. A handcart is advised, and one plus of it being a little heavier than some combos is that is remains stable when transporting it via the cart. Anyway, having heard so much about the limitations of such units, I think it is fair to say that--given FOH support--this combo can do the job.