Want to mix and scratch like a professional DJ? To be a good DJ you need to understand the concepts of mixing tracks, adding cool effects, and of course you need a good sense of rhythm to line up the beats. This how to video explains how you can set up a big sound system. This video provides an idea of what you may need for a big sound system. Remember that an event outside will need far more power than inside an enclosed area. Watch this DJ tutorial to learn how to set up a big sound system.