Jrifedptry DLHiFi Bass Treble 2Way Crossover Audio Board NE5532P Frequency Divider Crossover Filters For Audio Amplifier System

The frequency dividing components used in the power frequency dividing itself are all high-impedance components (for this reason, there be a large insertion loss), so the power frequency dividing greatly increase the total impedance of the circuit. This reduces the controllability of the power amplifier. The traditional power frequency division is also called LC frequency division. Its principle is to use the low-pass and high-pass characteristics of the inductor (L) and the capacitor (C) to prevent a part of the frequency signal from passing through a certain circuit, thereby completing the frequency division. Electronic frequency division eliminates the insertion loss of power frequency division. The so-called insertion loss refers to the part of the power that is output by the power amplifier, but cannot be transmitted to the speaker and converted into sound. Electronic frequency division improves the damping coefficient of the speaker system. The damping coefficient reflects the ratio of the speaker impedance to the total impedance of the entire front-of-speaker circuit. The higher the damping coefficient, the more obvious the response of the change of the output signal of the power amplifier to the speaker, that is to say, the higher the control power of the power amplifier to the speaker. On the other hand, since the electronic frequency division does not have this stage of circuit, it has no adverse effect on the damping coefficient of the system. These two are the most important and obvious advantages of electronic frequency division.