| Mic-Line Switch | |
| Mixer input channels may be provided with a switch to set input sensitivity to accept the low signal levels of a microphone or the relatively higher levels of a line signal (tape recorder, signal processor, synthesizer, etc.). |
| Problems occur when there is a mismatch between the incoming signal level and the sensitivity of the input channel. |
| Sending a line level signal to a channel with the mic-line switch set for mic input will result in a very distorted signal as the channel input will be overloaded. | Conversely, sending a microphone level signal to an input channel set for line level input will result in a weak and noisy signal at the input. |
| Incoming signal levels and input channel sensitivity should agree as closely as possible in order to achieve optimum signal level at the channel input. |