Page 2 of 2 FirstFirst 12
Results 11 to 15 of 15

Thread: Ribbon Mic Frequency Response

  1. #11
    Tommy Yonley is offline Gold Club Member (1000+ posts)
    Join Date
    Dec 2004
    Houston TX
    I have another data point on the frequency response. Look at the data sheet for the coles 4038:

    The frequency response is flat to 10kHz then drops steadily to (what looks like) beyond 40 kHz. There is no "null". To me, this suggests that in this case 1.) something other than the ribbon its self is limiting the high end frequency response and 2.) the frequency response limit of the ribbon its self in this case must be very high.

    - Tommy

  2. #12
    Wireline's Avatar
    Wireline is offline 3D VIP 2004, '05, '06, '08, '09, '10
    Join Date
    May 2002
    Midland Tx
    I like it just long as I keep in mind its limitations...

    For my needs, works GREAT on vintage horns, some violas and cellos, and as a great voiceover mic...often as a lead vox mic for male baritones and/or female altos....kinda cool on acoustics (although I am drifting away from this usage)

    used it as an drum overhead on dozens of occassions as well...

    Kinda stinks on lead guitars (to me)...

    As far as 'cheap'...where are you finding them? I've half way looked for another, and can't seem to locate any.
    Ken Morgan
    2010 3d VIP

  3. #13
    Join Date
    Aug 2004
    Originally posted by Tommy Yonley:

    However, read the following:

    "More typical designs would have a -3dB point between 10kHz and 20kHz. This is achieved by making the path-difference from the front of the ribbon to the back of the ribbon as small as practical."

    So if all we are talking about is the ribbon, why wouldn't they just say "to get the best high frequency response, make the ribbon as small as possible". Why do they talk about the "path difference"?

    - Tommy[/QB]
    You also have to take into account the ribbon motor in this path (the hunk of metal that the magnets are typically attatched to. This will make the path from front to back longer than just the ribbon. This was especially the case in some older ribbon mic designs, as the performance of magnets was not as good.

    If you leave more gap between the ribbon and the magnets, your performance drops significantly.



  4. #14
    Tommy Yonley is offline Gold Club Member (1000+ posts)
    Join Date
    Dec 2004
    Houston TX
    According to

    As far as I can tell, they are pretty much the cheapest RCA ribbon you can get.

    - Tommy

  5. #15
    Join Date
    Aug 2001
    Fort Wayne, IN, USA


    Quote Originally Posted by 3daudioinc View Post
    That's not how I read it.

    Look closely at this:

    Then the pressure wave arriving at the back of the microphone is 360 degrees out of phase....

    So the limitation in upper frequency is the thickness (thin-ness) of the ribbon.
    How did I not notice this before? 360 degrees out-of-phase? Wouldn't that put it back IN phase?
    Lynn Fuston
    3D Audio

    Making beautiful music SEEM easy since 1979.

Page 2 of 2 FirstFirst 12

Similar Threads

  1. Ribbon Rookies Article
    By 3daudioinc in forum Microphones and Preamps
    Replies: 16
    Last Post: 05-07-2008, 06:51 AM
  2. from the angel Metatron
    By Sal Vito in forum Prayer Requests and Praise
    Replies: 6
    Last Post: 12-25-2005, 10:48 PM
  3. Phase Response vs Frequency Graph
    By Tommy Yonley in forum Microphones and Preamps
    Replies: 3
    Last Post: 08-01-2005, 01:49 AM
  4. Bass frequency response
    By David Nash in forum The Old Yellow Board
    Replies: 4
    Last Post: 03-16-2003, 05:40 PM


Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts