Hi folks. I play in an acoustic duo and my partner plays the didge. We get a good sound out front with the didge but struggle with getting enough monitor level for my partner to be happy with. We just can't seem to get it loud enough without horrible low end feedback. If my partner covers the sound hole with his mouth it stops but he's also the singer. Either way we should be able to dial out the FB. I've worked on the EQ and have a lot of the bottom end dialed out but still FB. We typically have the mic resting on some foam on the floor about a foot away from the end of the didge. We have a small mic stand for it next gig to see if that's the issue. My main problem is that my duo partner loves to have the FOH speakers to the side and slightly back to get some fill. So I have to compromise, it's his PA after all. The current rig is Mackie DL806, 2 x 15 EV ETX cabs, 2 x 8 EV ZXA1 monitors. (the ZXA1's are a new edition that I hope will help the problem: we previously used his old Alto's) I should note that this issue is generally not present at outdoor gigs (beer gardens etc) but rears it's ugly head indoors. Thanks in advance for your help.