Fbt DLM26, User Manual

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Low Pass_1/2 Filter: These Low Pass filters present -3dB at the selected cutting frequency, and
a slope of 6dB/Oct-12dB/Oct.
If we selected a Low Pass filter of the 1st/2nd order within EQ-1, then High Cut Frequency has to
be set at a desired value of say 1000Hz with the NAV/Param.1 encoder; the EQ sub-menu screen
will show the following:
Once in the Low Pass_1/2 Filter's edit screen, the “NAV/Param.1” encoder can be used for
editing/modifying the Filter's High Cut Frequency:
“ High Cut Frequency ”: the selectable frequencies range is from 20Hz to 20kHz in steps of 1Hz
and can be adjusted by rotating the “NAV/Param.1” encoder.
When in the Parameters Editing Page, pushing once more the ENTER Button, it is possible to
access the page of the
Frequency Fast Setting :
Here, the NAV/Param.1” encoder will increment/decrement the Frequency value by step of one
thousand Hz, the Param.2 by steps of one hundred Hz and the Param.3 by steps of one Hz.
Low Pass_Q Filter: The Gain of these Low Pass filters can be modified at their cutting frequency
corner depending from the value assigned to the Q parameter.
If we selected a Low Pass filter with variable Q within EQ-1, then High Cut Frequency has to be
set at a desired value of say 1000Hz with the NAV/Param.1 encoder and the Q at 3.5 using the
Param.3 encoder; the EQ sub-menu screen will show the following:
Once in the Low Pass_Q Filter's edit screen, all the filter's parameters can be modified using the
“NAV/Param.1” and “Param.3” encoders for editing the Filter's High Cut Frequency and Q:
“ High Cut Frequency ”: the selectable frequencies range is from 20Hz to 20kHz in steps of 1Hz
and can be adjusted by rotating the “NAV/Param.1” encoder.
“ Q ”: the selectable Q range is from 0.3 up to 20.0 in steps of 0.1 and can be adjusted by rotating
the “Param.3” encoder.
When in the Parameters Editing Page, pushing once more the ENTER Button, it is possible to
access the page of the
Frequency Fast Setting :
Here, the NAV/Param.1” encoder will increment/decrement the Frequency value by step of one
thousand Hz, the Param.2 by steps of one hundred Hz and the Param.3 by steps of one Hz.
Input-A EQ-1
->1000Hz ------dB Q=----
Input-A EQ-1
->Edit Freq = 1000Hz
Input-A EQ-1
->1000Hz ------dB Q= 3.5
Input-A EQ-1
->Edit Freq = 1000Hz