Yamaha DTXpress/DTXplorer/DTXtreme

Stephanie
I took an excellent acoustics class in college (many moons ago) and the
professor told us about a student who did an experiment in a long tunnel
that joined a high-rise dorm to campus. He set up a guitar amp with a
frequency generator in the tunnel in an effort to find the tunnel's resonant
frequency. Well, he found it. Supposedly there were swaying vibrations all
the way to the top of the dorms and a squad of campus police arrived to end
the experiment. I have no idea what the frequency was that was arrived at-
but it takes very little energy to excite a column of air if the frequency
is correct.
-----Original Message-----
From: Stephanie Ellison [mailto:deafdrummer@...]
Sent: Tuesday, August 05, 2003 8:42 PM
To: DTXpress@yahoogroups.com
Subject: Re: [DTXpress] Re: Keyboard amps for electronic drums


> Do you remember the "amplifier instability" scene from the movie 'Back
> to the Future'? ;-)

Nope - it's been so long since I've seen the movie.

Stephanie


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