I have a ADS crossover. It has the + and - for the tweeters and woofer. It has 2 input + and 2 input -. Not sure why they did this. It has "biwire" and it looks as if the two + and the two - are connected to each other through a jumper wire. Does it matter where I put the + and - input? It doesn't look like it since they seem to be in parallel, but why the hell did they do this?