The NF-12 in-line power supply Noise Filter eliminates noise generated by the alternator and charging system of the vehicle. Ever since automobiles were invented, the vehicle's chassis has been used as a common ground return for its electrical charging system. The point on the chassis where an audio component is grounded may be anything but quiet; alternator whine or other electrical noises can be "picked up" by the sensitive component. In a perfect world, every manufactured mobile audio component would be designed with enough power supply filtering. But "visions of perfection tend to disappoint." So installers are faced with installing vulnerable audio components in an electrically hostile environment: a two-fold problem which translates to... NOISE!
Using the highest quality components and passive circuitry, PIE's NF power lead filters will eliminate unwanted noise due to alternating current fluctuations, resulting in a quiet audio system, free of alternator whine and other vehicle accessory noise (e.g., ignition, windshield wipers, etc.). Heavy-gauge wire leads and heavy-duty potted enclosures ensure long-term reliability. Quick and easy to install, just insert the noise filter in-line on the power lead to the component.
This In-Line Power Supply noise filter is rated for up to a 12-AMP load.
Installation wiring:
Click on an image below to enlarge it.