Got a JL HD 600 running Focal KX2 components front and Focal flax rear doors. When I crank it up sometimes it shuts off. I can still hear my subs on a separate amp. Had the same amp with morel components and rears lower wattage speakers and it never shut off on me. Wondering why now. I have gains set at half way up. Thinking I’m getting deaf and maybe doesn’t sound as loud as it actually is. Is there any benefit on turning gains up or down does it increase power output or just levels? Could the Focals be soaking up all the wattage?