I have done thousends of tests with cables in about 16 years of time. In the past I have done many tests with Siltech as well. In the last years sometimes clients have some of competitors. It is easy to compete. I am from the Netherlands. In the past demos from Slissstech were poor. I have owend the XA 30.5, 60.5, 100.5 and now I have the X-250.5. This year I will buy the new 350.8. I have done many tests with Pass as well. Audioquest is for loudspeakercables on of the best. Because you need a small and realistic dimension of instruments and voices. Also in blacks they are one of the best. I use Purist Audio powercables which are in tests by far the best for Pass Labs amps. Siltech is not good enough, you would be a fool to buy them!!