USB powered power amplifier for your PC

Sciprog shows you how to make a USB powered power amplifier for your PC – “I was looking for simple solution how to increase the output of my integrated sound card of my PC. I don’t know why, but the sound level of it decreased so I can’t normally listen with my headphones. So this article is about how to increase the power of your PC sound card by using minimal amount of parts and USB power supply.” – Link.