Shared Power OutletĪlways connect your devices to the same power outlet (e.g.
If you are going to use a replacement power supply unit, make sure that its specifications meet the ones required by your computer in order to avoid permanent damage. Disconnect your computer from your power supply so that it runs on battery power and verify if this resolves the issue. Power SupplyĪ low quality power supply unit can lead to ground loop noise, particularly on laptops. Some devices offer a switch for this whereas others may require a modified audio cable or a DI-Box (see Balanced Cables and DI Box chapters at the bottom of this article). Never lift the ground of the power connection!Ĭontact the manufacturer of your device before lifting the ground to find out if ground lifting is supported on your device. If you find the device that introduces the ground loop, a ground lift of the audio connection may solve the issue. To check if the amplifier or active monitors create the ground loop, monitor your audio signal from the headphones output of your device (while the amplifier/active monitors are disconnected). external harddrives, MIDI controllers, etc.). This applies to all peripheral devices you may have connected (e.g. from your computer, mixer or MASCHINE+) but not the amplifier and / or speakers. In order to find out where the ground loop arises, disconnect all peripheries from your main device (i.e.
The troubleshooting steps below outline the most common solutions. Resolving a ground loop requires some investigation.
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