We're planning to try again this year the demo with 2 speakers & a
sine wave generator in a field. Last year it didn't work very well,
there was a building about 50 yards downrange from the speakers,
and relefections might have been too great, but we also found that
whereas a pair of cheap midrange speakers gave a weak
interference pattern, a pair of expensive two-way speakers (which
were louder and thus should have been better) didn't work at all. Is
it possible that crossover circuits in two or three way speakers
would somehow muddy the waters?
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Gary Hemminger
Dwight-Engelwood School
315 E. Palisade Ave.
Englewood, New Jersey
07631
e-mail: hemmig@d-e.org
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