We use speakers to listen to music every day, and discuss a lot of topics that affect sound quality, such as speakers, cabinets, and sound sources. Today we are going to talk about the audio power filter. Some people may be very unfamiliar. What exactly does it do? In fact, the audio power filter plays a very important role in the audio system.
Nowadays, the electricity environment around us is becoming more and more complicated, and there are more and more clutter interference noises in the power supply; the use of impact drills, cutting machines and electric equipment for construction and decoration nearby will cause interference, and noise will enter us along the transmission and distribution lines. At home; the startup and shutdown of household refrigerators, air conditioners, washing machines and range hoods will cause clutter interference noise on the power grid. Clutter and noise will seriously affect the audio-visual effects of HI-FI and AV sound systems.
The power filter is to use inductors, capacitors and other materials to assemble capacitors and inductors into a "low pass filter", and only let the frequency point of a specific frequency or below the frequency point to pass, can block the noise above the frequency point of a specific frequency , Thereby eliminating the interference and noise in the power grid, making the power transmission more smooth and stable, and fully ensuring the sound quality of the audio system.
The audio power filter is divided into inductive and non-inductive. Generally, a non-inductive power filter is used, because the non-inductive filter suppresses the clutter current better, the output current is faster, the sound quality is wider, the details are richer, and the low-frequency dynamic extension is better.
The application of audio power filter has improved the sound quality of low-power appliances such as CD players, DVD players, pre-stages, etc., mainly in the background noise suppression. The application effect for car audio is also quite prominent. However, if it is applied to high-end HIFI audio at home, it needs to be equipped with high-quality power filters. Improper configuration of ordinary power filters will restrict the current output and affect the effect. Applied to ordinary audio equipment, it can only make the sound cleaner more, and improving the sound quality more is just a psychological comfort.
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