Dynamic microphones do not have a specific voltage output like condenser microphones. Instead, they generate a very low voltage signal that is directly proportional to the sound pressure hitting the microphone's diaphragm. This signal is then amplified by a preamplifier or mixer to reach usable levels.
Here's what you need to know about dynamic mic voltage:
- Dynamic mics are passive devices: They don't require external power to operate.
- Voltage output is very low: Usually measured in millivolts (mV).
- Voltage depends on sound pressure: Louder sounds produce a higher voltage output.
- Preamplifier or mixer is needed: To amplify the weak signal to a usable level.
Example: A typical dynamic microphone might produce a signal of around 1 mV for a loud sound. This signal needs to be amplified by a preamplifier to reach a usable level of around 1 volt.
In summary: Dynamic microphones do not have a fixed voltage output, but rather generate a low-voltage signal that varies with sound pressure. This signal needs to be amplified by a preamplifier or mixer to be used effectively.
