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Author Topic: Phantom issue  (Read 1726 times)

Devin Rice

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Phantom issue
« on: February 20, 2011, 08:07:37 AM »

Yesterday I had a show with a monitor mixer and a FOH mixer, where the hardwired split happened via Y cables before the snake. Kind of a crappy provider who had 2 decent mixers but pretty much everything else was cheap chinese equipment (knockoff JBL SR speakers powered by knockoff Crest amps).

Phantom was supplied initially by the monitor board only, (later tried from both boards at the same time, not that it did anything to help) for the few condensors (was using my own mics) that required it on stage. Pretty soon we were faced with huge amounts of phantom popping that came and went even when nobody was touching anything on stage. It didn't matter what channels in the board had phantom turned on, the problem still occurred if even one channel was on.

This wasn't an issue when phantom was turned off so the provider's only solution was to remove all condensors and replace with 57's and 58s. Not my ideal solution but we were out of time to fool around.

Question: If this was occurring regardless of which channel was supplying phantom, what could have been the issue? Something to do with the snake?
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Joe Brugnoni

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Re: Phantom issue
« Reply #1 on: February 20, 2011, 10:22:46 AM »

I suspect the y splitters if they where the cheap chinese kind, poor solder points
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Tim McCulloch

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Re: Phantom issue
« Reply #2 on: February 20, 2011, 01:10:45 PM »

Bad connection between the microphone and the source of the +48.  Could be bad cables (I got samples of some that were microphone, i.e. they make noise on their own), bad solder, funky snake mults.

Blacklist this provider and tell promoters your act will not perform if they are supplying.  Do this BEFORE the day of show, or you'll be stuck with this shit again.

Tim Mc
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"If you're passing on your way, from Palm Springs to L.A., Give a wave to good ol' Dave, Say hello to progress and goodbye to the Moonlight Motor Inn." - Steve Spurgin, Moonlight Motor Inn

Devin Rice

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Re: Phantom issue
« Reply #3 on: February 20, 2011, 09:05:34 PM »

Thanks, I will indeed not be working with this provider again.
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ProSoundWeb Community

Re: Phantom issue
« Reply #3 on: February 20, 2011, 09:05:34 PM »


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