FILTER FOR MULTI-BAND SPEAKER SYSTEM Russian patent published in 2023 - IPC H04R3/12 

FIELD: acoustics.

SUBSTANCE: invention relates to frequency-selective devices. The filter for a multi-band speaker system contains a low-pass filter (LPF), a mid-pass filter (MF), a high-pass filter (HPF), low-frequency, mid-range and high-frequency speakers. All filters are made in the form of removable modules. Each low-pass filter includes four inductors with the same inductance value. Two coils are connected in parallel to the first input of the filter and to the first output of the speaker. Two other inductors are connected in parallel with the first outputs to the second input of the filter and the second outputs to the second output of the speaker. Each mid and high pass filter includes four capacitors, with all capacitors having the same capacitance. Two midrange filter capacitors are connected to the filter input and the second outputs are connected to the first output of the midrange speaker. Two other midrange filter capacitors are connected in parallel with the first outputs to the second input of the filter and the second outputs are connected to the second output of the midrange speaker. Two high-pass filter capacitors are connected in parallel with the first outputs to the first input of the filter.

EFFECT: ensured linearity of the phase response.

1 cl, 1 dwg