So, I need an LOC cause my H/U only has on pair of preouts and i am running my subs through it. I am looking for one but, i'm kinda confused. I been searching and have been seeing that most of them say. 10 watts per channel or 20 watts per channel. what does this mean? Is that the wattage i can send through each channel from my H/U? Its the first time i've ever had to use one so any help would be awesome. Thanks