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log or lin for eq cut and boost control?

Discussion in 'General Electronics Discussion' started by Liam O'Rourke, Sep 4, 2016.

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  1. Liam O'Rourke

    Liam O'Rourke

    19
    0
    Aug 31, 2016
    Hi,
    Just wondering which potentiometer taper is generally used for the cut and boost control on an audio equalizer.
    I know that for normal volume controls we use logarythmic taper but i'm wondering is this the same for let's say... a 'bass' control on a hifi amplifier which has a centre point aligned at 0db and allows the specified frequency band to be either turned up or attenuated accordingly.
    Thank you
     
  2. Arouse1973

    Arouse1973 Adam

    5,164
    1,081
    Dec 18, 2013
    Hi Liam
    I personally would use linear pots for my tone control. It also depends how you want your cut to work. Take guitars for example, some manufactures use linear pots for both volume and tone while others use log pots for volume and linear for tone.
    Adam
     
    davenn likes this.
  3. Alec_t

    Alec_t

    2,887
    773
    Jul 7, 2015
    If the pots are part of a Baxandall tone control network I think linear would be needed; otherwise you'd get a rather lop-sided effect with the boost range being much greater than the cut range (or vice versa).
     
  4. Liam O'Rourke

    Liam O'Rourke

    19
    0
    Aug 31, 2016
    Thank you very much guys... i'll go for linear then.
    Much appreciated
     
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