Hey Larry,
Before adding more gear to what you're alreading lugging around, take a close look at the Barbetta Sona 32-C at
www.barbetta.com/Live/Sona_32/sona_32.html . They're lightweight, pack more power, sound incredible, don't distort at higher volumes, have lots of bass, easy to transport and have features not found in higher priced systems.
Good Luck,
Gary
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PSR-S950, TC Helicon Harmony-M, Digitech VR, Samson Q7, Sennheiser E855, Custom Console, and lots of other silly stuff!
K+E=W (Knowledge Plus Experience = Wisdom.)