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 to use the filter on a Denon DN-S1200 mixer. This video shows you how to use the filter and gives you an idea of what it sounds like. The filter is set 3 ways: low, mid, and high. Watch this DJ tutorial so you can learn how to use the filter on a Denon DN-S1200 mixer.