If you've ever handled live sound, you know the recipe for creating quality live sound requires many steps. Your list of ingredients, shall we say, requires an understanding of sound and how it behaves, the know-how to effectively use a sound system), and the knowledge to choose and use your gear well. Add a dash of miking ability, stir in a pinch of thinking on your feet for when your system starts to hum or the vocals start to feed back, and...