IK Multimedia iLoud MTM Immersive Bundle High Resolution Compact Studio Monitors (11 Speakers, Black) - Manual (Page 14)

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LF filter
This pushbutton controls the low frequency level using a shelf-type EQ. The level can be set to 0dB (FLAT),
+2dB or -3dB, from 100Hz down.
This filter is used to adjust the proximity effect of side walls and ceiling. Use this filter whenever the acoustics of
your room cause problems in the low frequency range.
CAL/Preset
This pushbutton allows you to cycle between Desktop filer, FLAT (default) and custom user Calibration. The
Desktop filter sets an attenuation filter to compensate for the typical acoustic effect of a console or a desk. Such
placement usually results in a boost in the lower midrange. The Desktop switch activates a bell shaped notch
filter, with a -4dB centered at 160Hz and +1dB at 1.8kHz.
To perform a custom Calibration refer to the next paragraph.
IMPORTANT: units shipped from our factory have no custom calibration loaded, so the CAL position won’t be
available until a custom calibration has been performed by the user.