Value of the resistor it depends to the amplifier which you are using for it, for low impedance se low resistor -3k, most microphone amplifiers have high inpedance so Value of the resistor is not important.
Value of the resistor it depends to the amplifier which you are using for it, for low impedance se low resistor -3k, most microphone amplifiers have high inpedance so Value of the resistor is not important.