@djones51 it is easier to throw stones than make a meaningful argument. That is why they throw stones at me. I only entered the topic as the behavior was so poor. @henry53 admits that the ASR measurements provide enough resolution that they are beyond audible limits, but appears to be claiming they must make some other unknown test. For a cable, especially a digital cable, or power conditioner tested by measuring the whole system I can't imagine what that is. The tests are extensive. I am not an engineer but it is obvious that all those complaining are not either.