Got a MB QUART WM1-CD head unit with Front and Rear RCA line outs. My amp is 800watts, 4 channels and I am trying to push 6 Exile SX65Ms. When I plug the Rear line out into the amp Rear RCA connectors, the volume is incredibly loud, even though the head unit volume is only set to “2” on the head unit. I have the gain level on the Rear channel of the amp set to the bare minimum, and it’s still way too loud. What might cause this?
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