well i dont specifically know ur question, but lets starting from scratch, the best thing to do is turn the gain on the amp down all the way, turn ur deck up to the maximum level u will be playing it at(example if it goes to 40 put it on 35) then turn the bass boost up on the amp if u have one, i personally prefer my low pass filter on the lower end around 40hz........but this is personal preference, and now turn the gain on the amp up, until u notice distortion, or the bass no longer increases, and thats it.