No one can help me? I have 4 2ohm kappas going in each door. I figured that wouldn't be enough for 2 15' L7s, so i got tweeters. The tweeters are 4ohms. If i wire a tweeter in parrallel or series ( which ever doesn't go under 2ohms) with each coaxial, what will my final ohm load on each channel be when it gets to the amp?