This weekend I am doing a pool party here in the hottest place on the planet. (It seems like it anyway.) I normally use my 1st gen. Mackie SRM450s but they have recently gone thermal on me. They still work well (indoors) but in this summertime heat of Vegas, they go thermal again around the 3 1/2 hour mark. I am borrowing a friends set of JBL15 G2s to help lighten the load this weekend. This brings me to my question for you all, should I use them together or should I use the EONs as a backup in case my Mackies go thermal and just have them on while the Mackies cool down. What do you think?