One of my earlier projects was building a speaker system for an Engineering Electronics course. The goal of this project was to design and construct a speaker system which could take music in from a 3mm cable, amplify it and play it while being powered by a typical wall plug. The system has two speakers: one plays the bass frequencies while the other plays treble. Inside the system are two potentiometers for separate volume adjustment for speakers; LED bars show their volume levels. All of this was packaged inside a shoe box, which gave it a unique sound, more full than without housing. The result was an easily portable, plug and play type speaker system and an A letter grade.