this reply is quite a bit delayed. i just came across this list, and was
looking through the archives.
we dance in a gym. same lousy acoustics as most gyms. we tried numerous
setups, with different numbers of speakers in different places, and
different models of speakers. at one point we were trying the old standby
arrangement: one speaker on each side of the stage with one speaker on each
side of the hall, halfway down the hall, on delays. luckily, a person who
had a lot of experience with sound for rock bands offered to help. he dumped
the delays, took all 4 speakers and moved them into a clump, on the floor,
partially off to the side. pointing diagonally down the hall. the difference
in sound was impressive. we have modified this setup to 2 speakers (don't
want to haul 4 speakers.) at the center of the hall, only to bring the sound
source closer to the band which sits to one side of the stage in our case.
when i am running sound i drop one speaker to just above head height and cut
the volume on it (separate volume control for that speaker) to just hardly
audible. the idea is that it is fill for the front. the other speaker is up
around 8 feet. both are on tilters. i won't go into the theory about why
you may also, depending on the number of dancers/noise level, try just using
one speaker,instead of two. tilters are a good idea.
i don't know why this arrangement is not more widely used. it seems to be a
vast improvement, in this sort of hall, over the traditional, speaker on
each side arrangement.
a further improvement can be made by moving the monitors to behind the
musicians, set up at head height, right behind their ears. obviously you
have to be very careful of sound volume with this arrangement. and have
enough, small speakers to get one between pairs of musicians, on stands,
assuming that they are sitting in row or small semi-circle. this arrangement
allows the musicians to hear themselves with lower monitor volume, hence
lower stage noise bleeding into the stage mics, causing more degradation of
hall sound. frankly, even though it does make a small improvement in hall
sound and monitor sound, we don't use this much because it seems to make the
musicians uncomfortable. they generally opt to have the monitors in from of
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