input impedance ratio - mic frequency response

Discussion in 'General Electronics Chat' started by veenife, May 24, 2014.

  1. veenife

    Thread Starter Member

    Jan 16, 2014
    42
    0
    Hey, in this graph im attaching here is showing that if one do a 1 to 1 input impedance to output impedance of a dynamic microphone and an mic pre amp the low and high frequency response of the mic is reduced but the middle frequencies stay intact....

    I would like to understand why just low and high frequencies get affected but not the mid ones????

    [​IMG]
     
  2. alfacliff

    Well-Known Member

    Dec 13, 2013
    2,449
    428
    possibly because of loading on the windings in the microphone. less load with a much higher impedance. current load affects the mechanical load on the diaphram
     
Loading...