Hello, everyone.
I am someone who has been receiving a lot of help from this community.
Recently, I have been studying microphone output impedance.
?
I noticed that there are various terms commonly used, such as "output impedance" and "symmetrical impedance."First of all, I am confused about the definitions of these terms.
?
Can I assume that the two terms mean the same thing?
?
From what I understand:
- "Output Impedance" refers to the impedance between Pin 2 and ground on the microphone.
- "symmetrical Impedance" refers to the impedance between Pin 2 and Pin 3 on the microphone.
?
If that is correct, I would like to know whether the impedance values provided by manufacturers refer to output impedance or symmetrical impedance.
?
Secondly, I have a question about the method for measuring impedance.
?
From what I have studied, among the XLR pins (GND-1, HOT(+)-2, COLD(-)-3):
In the case of measuring condenser microphone impedance using voltage drop, should I connect the load RL between Pin 2 and Pin 3 to calculate the impedance?
Or should I connect separate loads RL between Pin 2 and ground, and Pin 3 and ground, to calculate the impedance? Which method is correct?
?
Thank you for reading.
?
I hope you all wrap up the year well!
