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Author Topic: Our sound system  (Read 5895 times)

Forrest Morris

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Our sound system
« on: November 03, 2010, 07:22:48 pm »

Sometime back I had started a topic regarding our sound system at church. We were having problems with echoing, etc, at the Lord's table in particular. You all helped tremendously in us being able to "muffle" the sound coming from the table and resonating into the mic that is positioned there. Also, some asked what our sound board settings were set at. I have just gotten a good picture of our mixer and wanted your views on the settings. If you see any of the settings that look incorrect, please feel free and let me know so I can do some tweaking. I know very little about the system, beyond the basics. So, feel free to offer advice. Thanks![img]http://i45.photobucket.com/albums/f78/tufunuf/ASCOC-AudioEquipment-0001.jpg
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Ron Balsom

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Re: Our sound system
« Reply #1 on: November 04, 2010, 02:07:35 am »

Check your e-mail and also your 'pm' (private messages) here on your post. Thanks, Ron Balsom HPCC  Casper, Wyoming.
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Ron Balsom

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Re: Our sound system
« Reply #2 on: November 04, 2010, 02:28:17 am »

Hi Forrest, welcome back. Your info is very limited in your post, however, there's one thing that stands out. In the far upper right corner there is the 'efx return' knob. Turn that completely to left or 'off' position. Also over on the individual channels, (some 6 or 7) the knobs at the very tops of each of those, are labeled as "EFX". Turn those all 'off' as well. That will definately cause your problem. The use of 'EFX' in your system we can cover later. Now if your experiencing any sound "quality" issues, then let us know. Again, your info you have given us is lacking much. Blessings, Ron Balsom HPCC Casper, Wyoming.
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Jonathan Johnson

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Re: Our sound system
« Reply #3 on: November 04, 2010, 10:14:05 am »

Two questions:

  1. How are the FOH main speakers powered? Via the amp outputs on the back of this mixer?
  2. Where does the cord that's plugged into the MONITOR output go?

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Dick Rees

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Re: Our sound system
« Reply #4 on: November 04, 2010, 10:15:35 am »

There are a couple of other potential issues visible.  

1.  The "smile curve" on the mains EQ

2.  The knob on channel 2 being turned all the way down, yet the XLR input is filled.  This would suggest a line level input (from a wireless mic?) and would be better addressed by engaging the "mic/line" button on the channel to pad the input down thereby allowing for some actual control with the volume knob.
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JMiranda

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Re: Our sound system
« Reply #5 on: November 04, 2010, 04:22:14 pm »

Perhaps I have come into this discussion too late in the game.  However, could you please describe at the present time, what you are exactly experiencing with the quality of the sound?

You mentioned doing several things (as sugg'd here) to help alleviate some of the reflections into a particular microphone from the table it was sitting on.  If that helped solve some of the problem, what is wrong now?
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Forrest Morris

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Re: Our sound system
« Reply #6 on: November 05, 2010, 04:03:56 pm »

Thanks Ron. I will do what you suggested and let you know how it does.
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Forrest Morris

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Re: Our sound system
« Reply #7 on: November 05, 2010, 04:08:59 pm »

Yes. The speakers are powered through the back of the mixer. I believe the cord on the monitor outlet goes to the hearing assisted box that allows the hearing impaired to use the wireless earphone devices.
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Forrest Morris

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Re: Our sound system
« Reply #8 on: November 05, 2010, 04:12:25 pm »

Dick,

The knob (#2) is actually for the Lord's table mic and was only turned down so there was no feedback from the #1 (Main podium) mike which was being used at the time the picture was taken. The #2 knob controls the wireless mic and is always left at the setting you see in the picture.
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Forrest Morris

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Re: Our sound system
« Reply #9 on: November 05, 2010, 04:21:15 pm »

Actually, the resonating, echo sound has been pretty well eliminated by using the suggestions that were recommended earlier in the posts prior to this discussion.

Now, in this discussion, I am simply asking for advice on the mixer settings in order to see if I am close to where we need to be with the system. I know very little about the workings of the system, other than (sort of) getting a working balance overall. The recordings that we get are pretty good, considering my lack of knowledge. I just wanted to see if there were any "glaring" deficiencies in the settings that would help to improve the sound factor that the audience(s) deals with from week to week. Occasionally, we experience a ringing or echo when someone is speaking. So I wasn't sure if I had all the settings where the needed to be.

Thanks for all the help.
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Kent Thompson

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Re: Our sound system
« Reply #10 on: November 06, 2010, 01:04:41 am »

This is not really something we can know without being there in the room. The only thing we can comment on are obvious things like the smiley face eq and where things are plugged in at. On top of that the eq is rather limited so there is not a lot you can do. If your lucky one of the feedback frequencies might be in one of the eq bands there. You could try it by trying to cause feedback by raising one of the eq sliders till you find the one that causes feed back then lower the level below the center till the feed back is reduced or goes away. It is probably gonna take a lot of other sound down with it but, if it nails the feedback it may be worth it.
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Ron Balsom

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Re: Our sound system
« Reply #11 on: November 06, 2010, 01:27:12 am »

Hi Forrest, Just a comment on one of you last posts. You mentioned the possibly of the "monitor" output on the front with the 90 degree connector as possibly powering the assistant hearing system. I've not looked at the manual for that powered mixer, however if that 'monitor' output is from the 'monitor amp', that could easily and quickly damage the 'hearing assist' transmitter.  That transmitter wants only a 'signal' strength, not something that is 'amplified'. If you happen to have the manual, take a look about that output. That mixer does have two independent amplifiers, one marked "mains" the other marked "monitor" each with 'volume' controls and 'equalizer'.  Keep us informed.  Ron Balsom HPCC Casper, Wyoming.  
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Dick Rees

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Re: Our sound system
« Reply #12 on: November 06, 2010, 01:10:02 pm »

Ron Balsom wrote on Sat, 06 November 2010 01:27

Hi Forrest, Just a comment on one of you last posts. You mentioned the possibly of the "monitor" output on the front with the 90 degree connector as possibly powering the assistant hearing system. I've not looked at the manual for that powered mixer, however if that 'monitor' output is from the 'monitor amp', that could easily and quickly damage the 'hearing assist' transmitter.  That transmitter wants only a 'signal' strength, not something that is 'amplified'. If you happen to have the manual, take a look about that output. That mixer does have two independent amplifiers, one marked "mains" the other marked "monitor" each with 'volume' controls and 'equalizer'.  Keep us informed.  Ron Balsom HPCC Casper, Wyoming.  


The only "outs" from the amps on such powered heads are the 1/4" speaker outputs on the rear of the unit(s).  The "patch panels" on the front face are buss outputs from the mains, monitors and/or EFX.  Typically.
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Phil Rowley

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Re: Our sound system
« Reply #13 on: November 15, 2010, 06:52:53 am »

I gather this system is primarily used for spoken word, correct?   If so, I would turn down your "LOW" EQs significantly.  Both on the indiviudal channel and on the EQ sliders on the right hand side.  Specifically, the "63" slider should be all the way down with the "125" slider just a tad above that.  That may be able to give you a bit more volume without introducing a low end feed back.  You mentioned the mic a the Lord's Table -- turning down that low end could reduce any noise or echo from the table itself as books and the Elements are moved around.  Also, experiment w/the positions of the "high" and "mid" knobs on channels 1 and 2.  That may clean up the sound a bit and make things more intelligible.  BUT--these suggestions are basic and assume nothing about your speaker types or how your room is configured.  Your mileage may vary.
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Forrest Morris

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Re: Our sound system
« Reply #14 on: November 15, 2010, 08:23:55 pm »

Phil,

Thanks for all the information. I really appreciate all the help you guys have given. I intend to follow up on the suggestions and see how all works.

In Christ,
Forrest
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Re: Our sound system
« Reply #14 on: November 15, 2010, 08:23:55 pm »


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