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Summary: A ground is used to connect a turntable to the mixer. Learn how to plug in grounds when setting up a mixer from a professional DJ in this free music video.
Justin Cohen is a disc jockey from Northampton, Mass. He has DJed regularly at public and private functions since 2004, and had a weekly radio show on Valley Free Radio WXOJ from...read more
"Alright, now I'm going to talk about plugging in the grounds from your turn tables. If you watched my last series on turn tables I went over this, but I'm going to reiterate it just because in case you didn't watch my series on turn tables you'll still need to know how to put the ground onto the mixer. So this is a ground coming from the turn table. It's attached to the turn table itself and the reason why we ground is because there's digital interference that you can pick up if your turn tables are not grounded and it's going to come through as either feedback or distortion. Your records are not going to sound good even coming through the mixer, even if everything is perfect if it's not grounded. So on the back here you see it says GND right over here and there's the little ground symbol. You unscrew, place your ground in. As long as it's touching it's going to be okay. And you rescrew it in as tight as you want to do it. Just make sure it doesn't fall out and your turn table should be grounded. If you find there is more interference you may want to put either some cloth or some foam underneath your turn tables and that should also cut some of the ground."
eHow Article: DJ Mixer Setup: Plugging in Grounds