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Thread: DIY Blumlein Ribbon Mic

  1. #1
    Join Date
    Jan 2007
    Location
    San Diego, CA USA
    Posts
    56

    Default DIY Blumlein Ribbon Mic

    Hi everyone,
    Over the USA Holiday weekend, I finished building a Blumlein configuration of my AUSTIN Ribbon Microphone design. It took me about 10 hours total, and cost ~$150 USD.

    It's got dual Cinemag 9887 output transformers, and I cut the ribbons a bit skinnier than the previous mic's I've made, allowing more space between the magnets and the ribbons.

    Photos are here:
    www.RickshawRecords.com/ribbonmic/stereo

    My initial recording of a 3-piece band in a small bar is here:
    www.RickshawRecords.com/CHUM/SBSS2007/

    One song from another band is here:
    www.rickshawrecords.com/samples/shootin.mp3

    Preamped with two ART-TUBE MP Studio V3's set on "FLAT" (No OPL or EQ) and about 60% of their total gain.
    Mic was about 15 feet from the kick drum, and about even with the height of the toms on the kit. The bands were not mic'ed through a PA - just amps and drums. NOTE: This is a totally random setup - No real thought was put into it, other than centering the mic on the band.

    Thanks for all your support on the DIY Austin plans. I've had a lot of people asking really great questions. Next month, a gallery of photos from people who have already made the mics will be posted!

    - Rick

    DIY Ribbon Mic Plans available at:
    www.RickshawRecords.com

  2. #2
    Scott Fraser is offline Gold Club Member (1000+ posts)
    Join Date
    Jan 2007
    Location
    Los Angeles
    Posts
    2,347

    Default

    Quote Originally Posted by Rickshaw Records View Post
    Hi everyone,
    Over the USA Holiday weekend, I finished building a Blumlein configuration of my AUSTIN Ribbon Microphone design. It took me about 10 hours total, and cost ~$150 USD.
    - Rick
    An initial thought: I'd give real strong consideration to the notion of replacing that DSUB connector with a 5 pin XLR.

    Scott Fraser

  3. #3
    Join Date
    Jan 2007
    Location
    San Diego, CA USA
    Posts
    56

    Default

    Quote Originally Posted by Scott Fraser View Post
    I'd give real strong consideration to the notion of replacing that DSUB connector with a 5 pin XLR.
    Scott, Thanks for your input.
    Like the Royer SF-12, a 5-pin Male XLR was my first choice too, but I couldn't find one locally over the weekend. The breakout "Y" cable converts the DSub to two XLR Male cables. That gets me to any preamp.
    I am slightly concerned with connector pull-out (the DSub doesn't have jackscrews yet) That's the only disadvantage I can see at the moment... Any other reasons I'm missing?

    DIY Ribbon Mic Plans available at:
    www.RickshawRecords.com

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