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Old 02-21-2012, 04:21 PM   #72
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Originally Posted by ruthrj View Post
You know, that may actually be the problem. Hate to quote myself, but I just had an epiphany. I've never seen or used chassis ears, but it sounded like a technician uses them with a pair of earphones. The frequency of the hum is so low I don't think earphones would be able to reproduce a sound of that frequency even if the microphone was able to detect it..... I think a subwoofer would be needed, or a very very nice pair of earphones.

Somebody please correct me if I'm wrong: If the chassis ears were detecting said low frequency vibration, you wouldn't even know it was detecting it because earphones couldn't reproduce that sound. Voila, can't detect the hum?
Could be spot on!!
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