ok i just got an hifonics its 2000 watts rms .ok every thing was goin good till one day i was ridin and my bass cut out...then came back in and today i started my car upp and my bass was real low and when i turn my bass knob half way up a lil bass come in but its still low and when i turn it all the way up the bass cut off......can some body please help me and tell me whats wrong