Hi all! I recently purchased a EV ZLX 12 G2 to reduce my footprint and run my helix through. I have all my presets exactly how i want them when the helix is hooked into my 5150 head and 212 cab (not using 4CM). When i plug into the EV FRFR, it sound muddy, muffled, constrained, like its neutered, something like that. Can someone tell me what i need to adjust? thanks!