I have no idea where you are getting your info, but it sounds like you are being miss-led. You need to take a step back and think about what you are doing. Research what the amp gain is for. Research cabin gain and most musical material content before you judge the usefulness, or uselessness of your bass boost. Also, you need to get someone who knows what they are doing to help you out. Something is wrong with your install, and it will be mental masturbation trying to figure it out on the internet...