Hi Bonnie,
Sorry to have taken so long to respond back, I was loosing my access to
this echo, and I wanted to find another feed before replying. I'm
accessing Fido via my Internet account and rlogin, so despite the feed
being in Florida, I'm in Colorado. :)
 BG> Then a lock goes on the adjustments for these things as "no one"
 BG> is supposed to play with this EVER!!! Mucho testing with expensive
 BG> test equipment verified that there was no better way to make these
 BG> adjustments, no user servicable parts inside.. Keep your hands off
That is a wise appoach if the system is set up right. I have the same
approach to my stereo EQ as well, but I do understand it is even more
important in a fixed live situation. Having said that, my ears tell me
there is something wrong with this particular church system, and this
locked down approach isn't going to fix it. :)
 BG> Oh, if we REALLY want to do a first class job and have that sound
 BG> system sound so primo... FIRST, the room needs to be considered
 BG> that you are going to put the sound system into.. A first step that
I would say that is the main problem with the church system now, brick
walls and lots of uncontrolled echo from the sides.
 BG> Often times, it is an afterthought in the design of facilities..
It definitely was in this case. I heard that an attempt at echo control
was made on the wall at the back of the room aabot a year ago, with
some success, but nothing was done to the rest of the room for some
reason?
 BG> amazingly enough, since they ought to realize that people are
 BG> going to collect in these places and they are so spoiled by what
 BG> they hear at home that they are expecting at least that good out
 BG> of the system in this church, concert venue, etc..
Yep, guilty as charged. :) I've spent 25 years tweaking my home systems
as well as my stage bass setup, and I want to hear the music in the
church sound as good.
 BG> Hopefully, after all of this effort to produce good sound,
 BG> hopefully, you have something worth all of this effort to put
 BG> through this system!
The musical director and pianist are very talented, and the desire to
have a first rate music program and system is there.
 BG> Yes, that basically works, as far as you take it. Additionally,
 BG> you need to consider the listening position, the distance to that
 BG> listening position, what the kind of source and whether it
 BG> conforms to the inverse square law or not (some speaker systems DO
 BG> NOT conform to this).
The room is about 125' wide, 75' deep, and 50' tall. Wood ceiling,
plaster acoustically treated back, brick, sides, and brick behind the
choir at the front. The speakers are on the ceiling, so the stage is
closer to the audience than the speakers are for half the audience. The
organ is a seperate system, and I can hear the piano directly, as well
as the drums directly, but the bass, and guitar are direct feeds only,
with the onstage amps facing away from the audience towards the front
brick wall, so the sound reflects off the wall and combines with the
room echo, and I hear no direct signal at all.
 BG> Now, if say, you wish an average of 95dB at the listening
 BG> position,  and you are so far away from the drivers, you will need
 BG> to feed the the speaker with x number of watts on an average to
 BG> get you to that level without exceeding the headroom or
 BG> capabilities of the power amplifer. This may require a considerably
The system appears to be tri-amped with Crown Micro-tech 400,600 and
1200 amps, as well as a QSC amp, but I don't know what amps run what
speakers, since the company that installed the system isn't running it.
I have asked about the speaker systems, but I haven't been told
anything usefull, and since the speakers are on the ceiling I can't
look. Regardless, everything seems clean with lots of headroom, except
the bass seems very weak and undefined to my ears. However that may be
what they want for the choir and sermon. I think the room resonances
(250 hz) are making them shy of a balanced system in the bass area, and
I can't argue with that in theory, but I can in bass sound quality
compared to my home system - which nobody cares about but me. ;-)
... dschmoll@nyx.net (David Schmoll)
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