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Author Topic: Shure wireless distortion  (Read 6420 times)

Nathan Vanderslice

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Shure wireless distortion
« on: April 05, 2015, 10:35:07 pm »

Okay, I'm using one of the blx series wireless mics and am having problems with distortion and clipping at the mic (singer tends to yell into mic). I'm also getting a "clipping indicator" on the unit. This is definitely where the problem is. I don't know if I can get the performer to change their ways, but I'm wondering if there's another way to solve this problem. There is a gain control on the mic, but will that work? Is the gain for the mic element output to preamp, gain sent to receiver, or what?
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Jordan Wolf

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Re: Shure wireless distortion
« Reply #1 on: April 05, 2015, 11:14:09 pm »

Nathan, I haven't had a chance to look at that model's specs, but many units have a pad that can be engaged to pad down the signal coming from their element before it reaches the gain stages in the belt pack circuitry. It's typically around -20dB.


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Lee Buckalew

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Re: Shure wireless distortion
« Reply #2 on: April 06, 2015, 05:21:14 am »

Okay, I'm using one of the blx series wireless mics and am having problems with distortion and clipping at the mic (singer tends to yell into mic). I'm also getting a "clipping indicator" on the unit. This is definitely where the problem is. I don't know if I can get the performer to change their ways, but I'm wondering if there's another way to solve this problem. There is a gain control on the mic, but will that work? Is the gain for the mic element output to preamp, gain sent to receiver, or what?

Look here on page 5, Adjusting Gain.  Set to -10.  If it still clips and/or distorts then you have the wrong tool for the job.  -10 will almost never take care of yelling directly into the mic in my experience.

http://cdn.shure.com/user_guide/upload/1983/blx-wireless-user-guide-english.pdf

Lee
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Nathan Vanderslice

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Re: Shure wireless distortion
« Reply #3 on: April 06, 2015, 05:55:11 am »

Nathan, I haven't had a chance to look at that model's specs, but many units have a pad that can be engaged to pad down the signal coming from their element before it reaches the gain stages in the belt pack circuitry. It's typically around -20dB.


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Sorry, I should have specified that it is a handheld mic.
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Keith Broughton

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Re: Shure wireless distortion
« Reply #4 on: April 06, 2015, 06:15:44 am »

Sorry, I should have specified that it is a handheld mic.
There is also a gain adjustment for the hand held.
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Lee Buckalew

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Re: Shure wireless distortion
« Reply #5 on: April 06, 2015, 07:23:44 am »

Sorry, I should have specified that it is a handheld mic.

The link, in my previous post, tells you how to adjust the gain on the handheld.  Doubtful it will be enough but it's all that you have to work with on the BLX.

Lee
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Brian Jojade

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Re: Shure wireless distortion
« Reply #6 on: April 06, 2015, 11:47:25 am »

If you can't get the performer to change their ways, then you either have to change equipment or the performer.

The -10 will help a bit, but if you're yelling into the mic, it's not going to be enough.  It'll still clip.
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Luke Geis

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Re: Shure wireless distortion
« Reply #7 on: April 06, 2015, 03:28:22 pm »

The lower end mics are just not worth the money. Sennheiser G3 series is about as good of an affordable mic as you can get. The Shure entry level mics are the worst offenders for not having enough adjustment to eliminate clipping. The lowest end ones usually only have a -10db pad, while even the higher end models have an adjuster that doesn't always get low enough. If the singer cannot recognize when the mic is clipping your going to have your hands full. They need to back off a bit to keep the level optimal.
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Nathan Vanderslice

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Re: Shure wireless distortion
« Reply #8 on: April 07, 2015, 12:01:43 am »

What about using an AKG 535 with the 14 dB pad?
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Tim McCulloch

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Re: Shure wireless distortion
« Reply #9 on: April 07, 2015, 12:47:02 am »

What about using an AKG 535 with the 14 dB pad?

I love the C535 but it's not a go-to choice for screamers or shouters.  I had one gospel tenor easily overload a 535 with the pad engaged...
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Re: Shure wireless distortion
« Reply #9 on: April 07, 2015, 12:47:02 am »


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