Ribbon Mic and ensuring no phantom power

Discussion in 'Digital Audio' started by Paul Ashton, Jun 4, 2009.

  1. macrumors newbie

    Joined:
    May 14, 2009
    Location:
    Manchester
    #1
    I have just bought a Vintage Symphony Reslosound Ribbon Microphone and have not yet plugged it in. I know that I should definitely make sure that phantom power is off or it will blow or at best be damaged. As I normally use condenser mics I normally have phantom on and I worried about accidents happening.

    If I use the Ribbon mic with a 1/4" jack connection into an UNbalanced jack socket, am I guaranteeing that I won't be getting phantom power, or even the shorts that cause bursts of power that can also damage to the mic.
    This part is still theoretical as I do not yet have a suitable connector to fit at the microphone end. Looks like opposite way round to a normal XLR but I am still researching.
     
  2. macrumors 601

    zimv20

    Joined:
    Jul 18, 2002
    Location:
    chicago
    #2
    imho, you shouldn't be plugging/unplugging any mic, including condensers, when phantom is on.

    regarding ribbons, seeing phantom doesn't guarantee damage to the mic, it depends on how the power is applied. not that i would do it, but if you plugged in the ribbon, turned on phantom, then turned off phantom, the mic probably wouldn't be damaged. but it might be if you plug/unplug the mic when phantom is on.
     
  3. macrumors regular

    Joined:
    Feb 9, 2008
    Location:
    Hawaii
    #3
    You definitely shouldn't just leave phantom power on all the time. When you plug and unplug with phantom on, you'll get a transient bump. The default should be 'off', and apply it as needed.

    Zim, I always thought that the danger to ribbon mikes was that they would slowly burn the ribbon out, not that the transient would damage the ribbon.
     
  4. macrumors 601

    zimv20

    Joined:
    Jul 18, 2002
    Location:
    chicago
    #4
    it's entirely possible; hadn't heard that one before.

    i'm certainly not advocating applying phantom to ribbons in any situations (other than those few models that need it), i just wanted to dispel the notion that any application of phantom would shred the ribbon immediately.
     
  5. macrumors 6502a

    pkoch1

    Joined:
    Oct 3, 2007
    Location:
    Boston
    #5
    Actually most ribbons made today, like the newer Royer 121s or something like that, are pretty resiliant and can stand phantom power no problem.

    OP, i know you said it was a vintage mic, so yours is probably different. Good luck with it!
     
  6. thread starter macrumors newbie

    Joined:
    May 14, 2009
    Location:
    Manchester
    #6
    Still not managed to source a cable - it needs a sort of inverse XLR but fatter pins. Any ideas apart from bare cables and match sticks?
     
  7. macrumors regular

    Joined:
    Feb 9, 2008
    Location:
    Hawaii

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