Here's another option of speakers. How about the FBT Maxx 4A. They weigh about 35 lbs and have 400 watts and are pretty clear. I also have the Mackies SRM-450 (a little heavy) and the BOSE PAS, like Uncle Dave, which is light and has a crystal clear sound. Remember one thing - after you walk away about 3-5 feet, the stereo effect becomes obsolete and your audience hears it in mono anyway so why not lighten you load.