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Electronic devices produce certain frequencies that may disturb other electronics that are sensitive to those frequencies. It doesn’t matter if it’s a household appliance or in an automotive application: sometimes a filter is required to prevent feedback through the wiring.

Hows it work?

By preventing rearward flow of all current, and thus all frequencies produced by the device being powered, they “filter” that devices ability to interfere with your vehicle’s electrical system.


Ferrite rings are another common way to help reduce radio static / interference, but they only help reduce EMI that’s being radiated out of a source and do nothing to reduce interference that’s back-fed through wiring. If you’ve got major static issues and Ferrite rings haven’t done anything for you – these will likely help.


We have been doing this for more than a decade. If you are still unsure of what to do, where to go, or just plain have questions, don’t be shy. We are always here to help you in every way that we can and will continue to keep helping out until you fully understand the entire process from start to finish. Remember, we are people too, and everyone starts off the same way with knowing nothing so we completely understand if this is overwhelming for you as we were in the same boat. So contact us and we will get you started towards the right path.


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