Extron Electronics MVC 121 Plus User Guide User Manual
Page 28
Low Pass
The low pass filter is the opposite of the High Pass filter. All frequencies above the
specified frequency are attenuated allowing lower frequencies to pass.
Figure 12.
Low Pass Filter Response Curve
Here, the frequencies higher than the specified frequency, 10 kHz, are attenuated leaving
the lower frequency response flat.
Bass and Treble Shelving
Bass and treble shelving may be added to the filter. Adding this filter automatically inserts
both a bass and treble control row in the dialog box. If only a bass or only a treble filter is
required, either bypass the unneeded control or set it to
“unused”
in the selection box.
Figure 13.
Bass and Treble Shelving
The corner frequency of the controls may be selected to 0.1 Hz accuracy. Two slopes,
6 and 12 dB/octave are available along with the ability to boost or cut the signal up to
24 dB.
MVC 121 Plus • Operation
22
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