I have a question regarding setting up my sub amp. I have a Kennwood deck. The subwoofer setting goes from –15 to +15 . What should this setting be at before messing with the gain on the sub amp? I currently have it set at +15 and my amp gain is around half way. I purposely did it this way so I wouldn’t get greedy and raise the sub setting higher(since it is maxed out) trying to impress somebody. So my question, higher setting and lower amp gain? Or, lower setting and higher gain? I hope this is making sense. I kinda figured it doesn’t really matter as long as you don’t change anything after the gain is set.