Besides taking Richard Clarks word, how can the results of the test be verified?
Many car audio professionals have taken the test and/or witnessed the test being taken in audio seminars, so there isn’t much doubt that the test actually existed and was taken by many people. One respected professional who has taken and witnessed the test is Mark Eldridge. Because the test has been discussed widely on audio internet forums, if there were people who passed the test it seems likely that we would have heard about it. Sometimes there are reports of people who believe they passed the test, but upon further examination it turns out that they only passed the preliminary round of 8 tests, where levels were not matched as closely as for the final test.