Impedance is the electronic measurement of a device's resistance to the flow of an AC signal, such as audio. It is similar to resistance, which indicates a device's resistance to the flow of a DC signal. Both impedance and resistance are measured in ohms.
When referring to microphones, low impedance is less than 600 ohms, medium impedance is 600 ohms to 10,000 ohms, and high impedance is greater than 10,000 ohms.
"Low impedance" inputs on audio mixers usually have an impedance between 1000 and 2000 ohms, and can be used with both low and medium impedance microphones. A low impedance microphone may always be connected to an input with a higher impedance. However, the microphone may not always be able to provide enough signal strength to properly drive the mixer's audio input. For the best signal strength, you should always compare the microphone's output level (or sensitivity) to the required mixer input level.
High impedance microphones should be connected to high impedanc
