Analog Audio Equalizer
Coursework in Linear Circuit Analysis
Overview
The final project for this course challenged my knowledge in circuit design and implementation. The goal: build a functioning analog audio equalizer.
This project utilized analog RC band pass and RCL band reject filters to create the bass, treble, and mid-range channels, each with -3dB cutoffs. These channels could have their gain controlled by three potentiometers to achieve the desired mix. Further, a master volume control potentiometer was added to control the entire device. The equalizer was required to output less than 15 mV(RMS) at minimum power and near 100 mV(RMS) at maximum power. Additionally, the maximum recombined signal could not ripple more than 15 mV(RMS) and the entire device needed to output more than 400 mW of power across all desired frequencies.