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spiral
re-cappin' neve
Joined: 09 May 2003
Posts: 663
Location: Chicago
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 Posted: Fri Apr 09, 2004 12:41 am Post subject: Give me clarity: Phantom power before or after mic conn.? |
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Okay. So i read the 60 post thread on RAP, this year, last year, and the year before. The one were people say to do it both ways. I've read about it on this board several times ... but i still don't have it clear in my head!! I cannot find the "right" answer.
Right now i: plug the mic in, power the phantom power on, use mic, turn phantom off, then unplug mic. That just seems really dangerous, like it would be sending a sudden charge to the capsule, but i can see it being the same if it was already on and plugging the mic in as well.
So: when do you turn phantom power on to avoid messing up your mics?! And could you please explain why? Thanks!
Last edited by spiral on Fri Apr 09, 2004 2:01 am; edited 1 time in total |
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Sheep in Punk Clothing
zen recordist
Joined: 07 May 2003
Posts: 6534
Location: Spuyten Duyvil, Bronx NY
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| Posted: Fri Apr 09, 2004 1:22 am Post subject: Re: Give me clarity: Phantom power before or after mic conn. |
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you have it right..or maybe we both have it wrong!
never had any probs with this method..it seems like phantom charges into a circut gradually not in one full shot to me..but i really dont know..
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Only sick music makes money today.
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wayne kerr
ears didn't survive the freeze
Joined: 08 May 2003
Posts: 3770
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| Posted: Fri Apr 09, 2004 1:55 am Post subject: Re: Give me clarity: Phantom power before or after mic conn. |
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Oh my god no! Plug the mic in first and THEN power it up! When disconnectin, wait about a minute after you've powered it off to make sure your +48V power rail capacitors have fully discharged.
CM |
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spiral
re-cappin' neve
Joined: 09 May 2003
Posts: 663
Location: Chicago
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| Posted: Fri Apr 09, 2004 2:00 am Post subject: Re: Give me clarity: Phantom power before or after mic conn. |
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| Yeah. That is what i said i was doing now (maybe not so clearly). So the phantom power ramps up which is what make it safer than having it on already? Thanks! |
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bobbydj
on a wing and a prayer
Joined: 07 May 2003
Posts: 5351
Location: astride the vortex console
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| Posted: Fri Apr 09, 2004 6:07 am Post subject: Re: Give me clarity: Phantom power before or after mic conn. |
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| camouflagemonkey wrote: | Oh my god no! Plug the mic in first and THEN power it up! When disconnectin, wait about a minute after you've powered it off to make sure your +48V power rail capacitors have fully discharged.
CM |
I like that latter point. I notice on my Mackie 1640 VLZ Pro that the global light takes a while to dim after flicking the switch to 'off' - and I use that slowish fade as a queue to when, precisely, the discharge has happened. I'm assuming it was designed that way, and with this issue in mind. Either way, I use it as an indicator.
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Bobby D. Jones
Producer/Engineer
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cactus
takin' a dinner break
Joined: 20 Jun 2003
Posts: 177
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| Posted: Fri Apr 09, 2004 9:39 am Post subject: Re: Give me clarity: Phantom power before or after mic conn. |
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| I think it was a Manley owner's manual I read that said to turn 48v on AFTER connecting and BEFORE disconnecting to avoid magnetizing stuff. I don't remember what it said would be magnetized, but i shaped up real quick. |
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misterT
audio school graduate
Joined: 02 Apr 2004
Posts: 19
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| Posted: Fri Apr 09, 2004 9:57 am Post subject: Re: Give me clarity: Phantom power before or after mic conn. |
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| I pity the fool who done like T and hit his dicky with 48v, man I saw 48 shades of blue and tammy faye baker on all fours in some sears dressing room floor, begging for forgiveness. come clean and come correct! |
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cgarges
zen recordist
Joined: 16 Jun 2003
Posts: 9608
Location: Charlotte, NC
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| Posted: Fri Apr 09, 2004 10:28 am Post subject: Re: Give me clarity: Phantom power before or after mic conn. |
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| misterT wrote: | | I pity the fool who done like T and hit his dicky with 48v, man I saw 48 shades of blue and tammy faye baker on all fours in some sears dressing room floor, begging for forgiveness. come clean and come correct! |
beautiful, man. beautiful.
Chris
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The Public Good - New album available now
Playing drums and hihat with Mitch Easter (GA, TN - Aug. 2010) |
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dokushoka
buyin' a studio
Joined: 29 Feb 2004
Posts: 811
Location: San Francisco / L.A.
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| Posted: Fri Apr 09, 2004 12:33 pm Post subject: Re: Give me clarity: Phantom power before or after mic conn. |
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| As long as all your stuff is properly wired, it isn't really an issue. I've heard that there are boards that the BBC uses daily where the phantom is fixed so that it is on all the time. The issue is more plugging in a mic when the gain is up. |
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