Two-channel nine-band equalizer

The aim of this project has been making the acquaintance of the adjustment of the audio signal of the frequencies switches and the suggestion of the nine band analogue equalizer. The suggestion equalizer was simulating in the program PSpice. Make a printed circuit using Eagle software and construct equalizer also with excitation indicator. The best option for the implementation of the equalizer has seemed to apply of the band’s correctors with the series resonant circuit. Every band in the equalizer has the distinction with the definite resonant frequency f0 and with extent of the correction ±dB. This project points out some options of the adjustment of the audio signal with help frequencies correctors and filters