4 Band Equalizer schematic diagramThe afterward diagram is the four bandage blaster circuit. Blaster is about acclimated to advance the allegiance of sound, to accent assertive instruments, to abolish causeless noises, or to actualize absolutely new and altered timbres
The equalizer uses four pieces of variable resistor to cut and boost four range of audio frequency, that are:
- Low frequency: Freq. 35-680Hz
- Medium frequency: Freq. 150-3kHz
- Medium/semi high frequency: Freq. 450-8.5kHz
- High audio frequency: Freq. 750-15kHz
