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Author Topic: Single coil squeal through P.A  (Read 1863 times)

sam saponaro

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Re: Single coil squeal through P.A
« Reply #10 on: June 16, 2014, 07:11:13 pm »

Just a thought....guitar bleeding into open vocal or other mics that are fed back to monitors?Then the single coils with so much gain on the amp it could be just enough to cause feedback if there not great potted pickups.
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Lee Douglas

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Re: Single coil squeal through P.A
« Reply #11 on: June 16, 2014, 07:29:40 pm »

A couple of my active basses will squeal if I get to close to loud mains on a small stage.  That's just putting something designed to pick up magnetic fields getting too close to a large magnetic field, I think.
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Bob Leonard

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Re: Single coil squeal through P.A
« Reply #12 on: June 16, 2014, 10:15:04 pm »

Turn off the monitors and have the guitar player move from side to side on the stage. IS there any squeal? Next turn off the FOH and turn on the monitors. Any squeal?

Then go to the guitar rig and have the player set his pedals to unity gain, or remove them for the test. Any squeal? Run those tests and check back please.
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Jeff Harrell

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Re: Single coil squeal through P.A
« Reply #13 on: June 17, 2014, 12:17:43 am »

Is he using a PigNose amp?????
i'm too late for the pig joke !
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Guy Luckert

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Re: Single coil squeal through P.A
« Reply #14 on: June 17, 2014, 11:49:24 pm »

 That has happened to me quite a few times. 

 If  the guitarist is near FOH horn have him move away or pan the guitar all the way across stage and see if it goes away.

My guess is that it will.
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Guy Luckert

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Re: Single coil squeal through P.A
« Reply #15 on: June 17, 2014, 11:54:53 pm »

A couple of my active basses will squeal if I get to close to loud mains on a small stage.  That's just putting something designed to pick up magnetic fields getting too close to a large magnetic field, I think.

ok
just re-read the thread and I see what I mentioned had already been mentioned
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Jerome Freese

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Re: Single coil squeal through P.A
« Reply #16 on: June 18, 2014, 01:01:25 am »

Thanks I'm going to look into all of these Ideas.
 What I would like to know is in your opinion, If the guitar NEVER does this on it's own at any volume pickup,or gain, and once you add P.A it does it,isn't it 100% for sure a P.A. Issue? I mean the only thing that changed is P.A added so
isn't that assumption logical?
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Tim McCulloch

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Re: Single coil squeal through P.A
« Reply #17 on: June 18, 2014, 01:51:52 am »

Thanks I'm going to look into all of these Ideas.
 What I would like to know is in your opinion, If the guitar NEVER does this on it's own at any volume pickup,or gain, and once you add P.A it does it,isn't it 100% for sure a P.A. Issue? I mean the only thing that changed is P.A added so
isn't that assumption logical?

No.  It's a logical fallacy - "post hoc, ergo proptor hoc."  Roughly translated to mean "After this, therefore because of this."

If this doesn't happen with humbuckers, then the single coil pickup is the issue, right? ;)

Does this happen in every venue, with every PA system, or just sometimes or only with the band's PA?
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Frederik Rosenkjśr

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Re: Single coil squeal through P.A
« Reply #18 on: June 18, 2014, 03:04:48 am »

I also think this sounds very much like a nagnetic loop hearing aid thing (don't the name of this thing in English)
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Jerome Freese

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Re: Single coil squeal through P.A
« Reply #19 on: June 18, 2014, 07:53:13 am »

No.  It's a logical fallacy - "post hoc, ergo proptor hoc."  Roughly translated to mean "After this, therefore because of this."

If this doesn't happen with humbuckers, then the single coil pickup is the issue, right? ;)

Does this happen in every venue, with every PA system, or just sometimes or only with the band's PA?


 It happens any venue even outdoors. It started happening when we went from our big Allen heath board to the new Behringer digital.
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