ACOUSTIC SYSTEM FILTER Russian patent published in 2022 - IPC H04R3/12 

FIELD: radio engineering.

SUBSTANCE: invention relates to radio engineering and can be used in acoustic systems of household or professional sound reproducing equipment. The acoustic system filter contains a low-pass filter, a high-pass filter and a mid-pass filter, the outputs of which are intended for connecting, respectively, dynamic heads of low-frequency, high-frequency and mid-frequency ranges, while the mid-frequency filter consists of a first inductor, a first capacitor and a second capacitor, the low-pass filter consists of a second inductor and the high-pass filter consists of a third capacitor, wherein the first terminal of the midrange driver is connected to the second terminal of the first capacitor, and the second terminal of the midrange dynamic driver is connected to the first terminal of the second capacitor and the second terminal of the third capacitor, the first output of the first capacitor is connected to the second output of the first inductor and the first output of the second inductor, and the second output of the dynamic head of the high-frequency range is connected to the first output of the third capacitor, the first output of the first inductor and the first output of the dynamic head of the high-frequency range, the first output of the dynamic head of the low-frequency range is connected to the second output of the second inductor, and the second output of the dynamic head of the low-frequency range and the second output of the second capacitor are connected to the "minus" at the filter input, while the capacitance of the first capacitor is equal to the capacitance of the second capacitor.

EFFECT: increase in the linearity of the phase-frequency characteristic of the filter and the preservation of the uniformity of its amplitude-frequency characteristic while simplifying the design of the filter for the acoustic system are achieved.

1 cl, 1 dwg