Hi. I have an acoustic duo (2 acoustic guitars, two mics) and we use the Bose L1 Compact with the Tonematch mixer. When we are in a large space or outdoors, the system sounds fantastic. But when we are in smaller bars with lots of chatter, I am getting feedback, even when I move our mics to the side. I bought my unit used, so I can't say for sure how the previous owner had it set up, and I'm no expert on EQ settings. I was under the impression that we could stand almost right in front of the unit and not get feedback. (I've seen that done by others.)
So, are there any tips or tricks I can use to get my system under control?