An equalizer or "EQ" allows for very precise control of a sound system. Adjustments are made so that the speaker or performer can be understood, while at the same time keeping the volume as high as needed without causing feedback. This is what you need to do to EQ a microphone.
Instructions
1. Turn the sound system and the microphone on.
2. Set the four band frequencies in the middle of their ranges, usually at 5 of a possible 10. Frequencies are usually labeled Low, Low-Mid, High-Mid and High.
3. Have the performer/speaker rehearse their performance. If singing, they should sing at performance volume. If delivering a speech, they should use the actual text they will be speaking. In a pinch, you can have someone else speak during the microphone EQ.
4. Push the total volume up past the level needed for the performance or speech.
5. Listen for feedback. When it occurs, identify the frequency range that is causing it, and adjust that frequency's knob down until the feedback disappears.
6. Improve the sound quality by boosting each frequency range independently until the performer's voice sounds as rich and as full as possible.
7. Take the volume back down to the performance level.
8. During the performance, you will need to continue to adjust the microphone's four frequencies up or down for tone, still avoiding feedback.
Tags: frequency range, microphone four, sound system, they should