This is practical tutorial how to build your own 2x250W Class D audiophile grade audio amplifier using eBay components.
Could budget DIY audio amplifier outperform or compete with audio world grands?
Answer is yes, when we are talking about sound quality.
Group of engineers tested the number of eBay components to find out right architecture. Design was tested, measured and final design had several blind tests with audiophile audience. Some of them were shocked about outcome when there was no audible difference with high priced large footprint units what they owned.