I have a kicker dx300.1 amp powering 2 kicker comp 10's and I have the gain set at like half way ( this is my first setup) Ive been running it this way for a while and I notice that when I crank up the head unit to like 40+ (out of 60) the bass change tone? If that makes sense, I'm just not sure on where my gains should be sent at and if that would help out my problem. The amp also has a bass knob . I need all the advice I can get as you can see. Thank you!