9
Microphone Positioning - How to Reduce
Feedback
Feedback is the annoying howling
and squealing that is heard when
the microphone gets too close to the
speaker and the volume is high. You get
feedback when the microphone picks up
the amplified signal from the speaker,
and then amplifies through the speaker
again, and then picks it up again, and
so on and so on. In general, it is always
recommended that any LIVE mic (a mic
that’s on) is positioned behind the speaker
enclosures. This will give you the best
level from your system before feedback.
One possible exception is when you are
adjusting the sounds of the microphones,
since you want to listen in front of the
speaker to hear properly. To do this, lower
your mixers MAIN VOLUME while setting
the EQ and effect from in front of the
speakers. Once you have the sound you
like, move the microphones to behind the
speakers and raise the Main volume.
Speaker Placement
Whenever possible, it is a good idea
to raise the speakers above the heads
of the listening audience. The XP40iw
enclosures’ feature standard 1 3/8” pole
mount receptacles, which are compatible
with speaker stands from a variety of
manufacturers. In a smaller setting like a
school cafeteria, library, or a mall kiosk,
you can also use the XP40iw in one of
the tilt back monitor positions, which will
improve the projection of the speakers
and may eliminate the need for speaker
stands.
