Ok i have been going over the manual but am I confused but it does not mention anything about a subwoofer control fuction? It has a function for bass and thats it but not for just the subwoofer. Do I have to adjust the gain on the amp every time I want the subs to pump louder. I would expect that with such a high quality head unit as this I would have this control. Also the headunit came with a microphone and I have no idea what its for. It doesnt say anything about it in the manual.