Headphone amplifier with general purpose operational amplifier, a single gain amplifier stage is used and buffer stages are added to increase the output current by means of ballast or equalization resistors.
In this project the MCP6002 has been used, but could use any other NE5532, TL082, etc ...
The supply voltage is 5V with center point (+/- 2.5V) this can be done with a virtual mass through resistive and capacitive divider.
For more information visit the YouTube video about it.
https://www.youtube.com/watch?v=qntPnBTAmPY
