In this video, we'll be looking at the Earth plug on an amplifier. You'll need to ground it to stop any nasty buzzing sounds that will keep you from being a great DJ.

Apple's iOS 26 and iPadOS 26 updates are packed with new features, and you can try them before almost everyone else. First, check Gadget Hacks' list of supported iPhone and iPad models, then follow the step-by-step guide to install the iOS/iPadOS 26 beta — no paid developer account required.
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