Buzz / humm with two L1 and soundcraft ui16
I just purchased two new L1 compact stacks and a Soundcraft ui16 mixer for my intimate coffee shop venue. If I plug guitar (fender strat) and mike (shure sm58) in the L1 and daisy chain the two L1 stacks together, I get zero humm/buzz. The sound is crystal clear.
when I plug the soundcraft mains in the line-in on the L1’s, without even plugging in an instrument/mike in the mixer, I get a buzz/humm the instant I increase the mains on the mixer...
I tried different electrical outlets, I tried plugging everything in the same outlet with the help of a power bar. I’ve tried different audio cables. I am out of ideas?