Selecting Low-Frequency Response; Setting Attenuation - Shure BETA27 Manual

Shure Incorporated

Selecting Low-Frequency Response

A three-position switch on the back of the microphone lets you adjust the low-frequency response. Use the low-frequency filter
to reduce wind noise, room noise, or proximity effect.
Flat response. Provides the most natural sound in most applications.
Low frequency cutoff. Provides an 18dB-per-octave cutoff at 80Hz. Helps eliminate floor rumble and low-frequency room
noise from heating and air conditioning systems. This setting may also be used to compensate for proximity effect or to reduce
low frequencies that make an instrument sound dull or muddy.
Low frequency rolloff. Provides a 6dB-per-octave rolloff filter at 115Hz. Use this to compensate for proximity effect or to re-
duce low frequencies that could make an instrument sound dull or muddy.

Setting Attenuation

The attenuation switch lets you reduce the signal level without altering the frequency response. This can prevent extremely
loud sounds from overloading the microphone.
0dB For "quiet" to "normal" sound levels.
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