Yo yo GUTEN TAG MEINE FREUNDS..??? Not sure if I spelt that right, haven't studied German in years. Anyways, for my American friends, where did you get your high frequency test done at? I've been searching up and down for one and I can't find it. I want to see if I have any damage in the high frequencies so I know I have noise induced T. It would be helpful if it's in the Midwest.