Steren WR-801UHF Manual Del Usuario página 14

Proximity Effect
When the sound source is less than ¼" from the microphone, the
microphone boosts bass Frequencies (by 6 to 10 dB at 100 Hz),
creating a warmer and richer bass sound than when farther away.
Feedback
Feedback occurs when the amplifi ed sound from any loudspeaker
reenters the sound system through any open microphone and is
repeatedly amplifi ed. Most commonly, feedback is caused by the
following conditions:
placing loudspeakers too close to microphones, having too many open
active microphones, boosting tone controls indiscriminately (mainly
treble) and performing in areas with high ratios of room surfaces that
have hard and refl ective surfaces such as glass, marble and wood.
What to do if feedback occurs before the sound system is loud
enough?
• Request that the talker speak louder into the microphone.
• Reduce the distance from the talker to the microphone.
• Reduce the number of open microphones.
• Move the loudspeaker farther away from the microphone.
• Move the loudspeaker closer to the listener.
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