Unity Gain

Discussion in 'Effects, Pedals, Strings & Things' started by Goodwood Audio, Jun 17, 2008.

  1. Goodwood Audio

    Goodwood Audio Member

    Messages:
    1,463
    Joined:
    Apr 8, 2008
    Location:
    Australia
    Can someone explain to me (or point me in the direction of an article that does) exactly what Unity Gain is and how it relates to pedals and amps etc.
     
  2. El Gallo Negro

    El Gallo Negro Member

    Messages:
    1,030
    Joined:
    Mar 10, 2006
    It just means that when you click the pedal on, the volume (although not necessarily the tone) is the same as off.
     
  3. rogue.guineapig

    rogue.guineapig Member

    Messages:
    1,156
    Joined:
    Mar 11, 2008
    Location:
    Central AZ
    yup.

    and anything sub-unity is a cut, anything above unity is a boost.
    Which is why I like my BYOC booster...is can be a ...cutter instead.
     
  4. Goodwood Audio

    Goodwood Audio Member

    Messages:
    1,463
    Joined:
    Apr 8, 2008
    Location:
    Australia
    So what does it mean when a pedal builder states unity gain is at 12 oclock?
     
  5. Todd Lynch

    Todd Lynch Member

    Messages:
    2,964
    Joined:
    Aug 26, 2005
    It means that less than 12 o'clock would be less volume than if you had the pedal off. A raise in volume would begin after 12 o'clock.
     
  6. Goodwood Audio

    Goodwood Audio Member

    Messages:
    1,463
    Joined:
    Apr 8, 2008
    Location:
    Australia
    and that's regardless of what the input volume is?
     
  7. amz-fx

    amz-fx Supporting Member

    Messages:
    1,376
    Joined:
    Oct 18, 2005
    Location:
    USA
    Gain = Output/Input

    So if the input is 100mv and the output is 100mv, then gain =1

    If the guitar is cranked up and the input is then 500mv, the output is also 500mv and gain =1

    i.e. if the gain of the circuit is one, then it remains so at any input level (as long as the frequency response of the circuit is flat across the audio band)

    :D

    regards, Jack
     

Share This Page