As the title suggests, I'm not getting enough volume from my balanced output from the amp, into my IEM amplifier. Im using MEE Audio M6 PRO IEM with a Behringer Powerplay P1. The idea being that one channel would come from the mixing desk (this works fine) and the other input from the balanced output of my amp. I've now discovered that this output is not enough to give me good volume to my ears (derp), so I probably need another piece of equipment. Ideally I'd like something to go on my pedal board - any suggestions?