Headphone Amplifier Based on RC4560

The project is utilizing dual op-amp chip TI RC4560 along with salt water-etched PCB, while using this SMD op-amp for headphone amplifiers.

Standalone Music Player with AVR Microcontroller

The project illustrates how a microcontroller can generate sound as it plays audio bit stream generated from MIDI files which must be converted with special Perl program.

Sound Effects Processor Controlled by AVR

The project aims to amplify an input signal by building an input stage which will also bias the sample positive signals by ADC to 2.5V.

Music Equalizer Display Based on PIC18F452

The purpose of the project is to create a device that will take a standard headphoneaudio signal, interprets it, and outputs the voltage amplitude onto an LED bar which should change rapidly with the flow of music beat & rhythm.

Electronic Drum Machine Using Arduino

The project is using DIP switches to control he drum beats from the drum machine which is created by an Arduino system.

100W Guitar Amplifier

The guitar amplifier project is designed to operate a 4 Ohms load while being rated with 100W as a typical combo type of amplifier that can handle two 8 Ohm speakers in parallel.