This is Music
Much of Keith O. Johnson's invaluable presentation consisted of a series of graphs that demonstrated everything from jitter to the noise created by certain power cables. One of his many messages was, if folks think there are no differences between cables, I have the graphs to show otherwise. He also exhibited graphs that show how the quality of manufacture of CDs makes a huge difference in the ultimate analog signal. Want to see what a bad DAC or amplifier does, and compare it with a state-of-the-art unit? Keith can show you. Pictured is a tone-cluster wave he developed as a diagnostic tool that resembles music.