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Author Topic: banging and poping when touching sockets  (Read 2733 times)

kevin babb

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banging and poping when touching sockets
« on: May 24, 2014, 06:17:04 am »

Hi i new to this forum and have been in a band for 5 years
i deal with the sound mixing which i have learnt from forums and reading lots of articles about it so and by no means an expert but know enough to get a decent sound

The problem i am having is that after a gig we normally play music through a mp3 player to the mixing desk
which gives us 30 minutes to pack up amps guitars monitors etc. up until now we ave never had a problem but at the last gig when we unplugged the amps there was a loud bang and popping sound which happened every time the socket which the mixer was plugged into

would a ups or a power conditioner prevent this or would we be better plugging the mixing desk and eqs into a separate socket from the guitar amps? so we can unplug them with out touching the mixing desk power sockets

and help or advice would be greatly appreciated

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Mike Sokol

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Re: banging and poping when touching sockets
« Reply #1 on: May 24, 2014, 08:40:03 am »

k_babb

As noted on the rules of this forum, you must use your real name to participate. Please go back to the control panel and change to your actual name. Then we'll be able to help you.
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Mike Sokol
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Jonathan Johnson

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Re: banging and poping when touching sockets
« Reply #2 on: May 27, 2014, 02:03:18 am »

...up until now we ave never had a problem but at the last gig when we unplugged the amps there was a loud bang and popping sound which happened every time the socket which the mixer was plugged into

would a ups or a power conditioner prevent this or would we be better plugging the mixing desk and eqs into a separate socket from the guitar amps? so we can unplug them with out touching the mixing desk power sockets

I'm a little confused as to exactly how you had things hooked up and what was plugged in where and what you touched to cause the popping.

Anyway, it sounds like you connected to a receptacle with loose contacts (or, possibly, a loose terminal screw inside the box). If a receptacle feels like it's not gripping the plug snugly, you should avoid using it. Loose contact with the plug can result in intermittent or low voltage conditions which can cause digital consoles to reboot, and can have other sonic effects (as you have found). In the worst-case scenario, the connection heats up and starts a fire.

If you are using a digital mixing console, it's highly recommended to have a UPS. (Almost anything that needs to "boot up" or has a power-on delay should be protected by a UPS.) This will prevent an interruption to the show in the event of a momentary power glitch. A power conditioner can't prevent a reboot due to a complete loss of power, but a UPS can.

A power conditioner *may* be able to prevent popping noises from loose connections, but I wouldn't count on it. A loose connection could cause a UPS to frequently switch between standby and online, and that could shorten the life of the UPS.

Bottom line is, don't trust a loose receptacle. It's bad news. It's also a good idea to meter every receptacle or connection to ensure it is wired properly and to the correct voltage.
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Jeff Bankston

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Re: banging and poping when touching sockets
« Reply #3 on: May 27, 2014, 02:18:25 am »

turn the power amps off before you do anything else after the gig.
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Mike Sokol

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Re: banging and poping when touching sockets
« Reply #4 on: May 27, 2014, 11:26:21 pm »

turn the power amps off before you do anything else after the gig.

That's a major rule for all big gigs. Someone goes to the amp racks and powers down all the amps, then radios back to the guy striking the FOH position that it's safe to power down the drive rack and console. Turning off the console before the amps are powered down is considered bad form and subject to much ridicule on the drive home.  ;D
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Steve M Smith

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Re: banging and poping when touching sockets
« Reply #5 on: May 28, 2014, 01:42:29 am »

Turning off the console before the amps are powered down is considered bad form and subject to much ridicule on the drive home.

As is unplugging the main L & R feeds when packing up at the end of the night but whilst the DJ is still playing... apparently.


Steve.
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Re: banging and poping when touching sockets
« Reply #5 on: May 28, 2014, 01:42:29 am »


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