Hello I have an issue that is killing me, we are a duet with keyboards and 2 vocals and play most of the time in medium parties like in houses or restaurants like chillis just to give an example. I'm trying to decide whether buying 2 L1pro 8 systems or just 1 L1pro 16, when I read about the wattage on both I went crazy!!! Why is it a huge difference between them?? If both sound amazing!!! Any advice??? Please help!!!