scott wrote:

> Reminds me when my science teacher at school used some crappy small 
> speaker to demonstrate to us the human hearing frequency range.  It 
> wasn't surprising that none of us could hear below 40 Hz!

I saw a similar thing, but with a British Telecom osciliscope for 
testing underground cable. It was a big black metal box roughly the size 
of a typical HiFi component, with a big blurry blue/purple LCD. I have 
no idea if this means it had a less crappy speaker in it though...

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