Fbt DLM26 User Manual download pdf (Page 44)

All Pass_2 Filter: Filters allowing a FLAT Amplitude response and adding a 180 Degree Phase

rotation at the selected Frequency.

If we selected a All Pass_2 filter, with variable Q, within EQ-1, then Phase Rotation 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 All Pass_2 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 Phase Rotation Frequency and Q:

“Phase Rotation 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.

Band Pass Filter: Filters allowing to pass the band “around” the selected frequency; the amount

of passing band is decided by the Q value

If we selected a Band Pass filter within EQ-1, then the Q has to be set at a desired value of say

1.00 using the Param.3 encoder, the GAIN at say +3dB using the Param.2 encoder and the center

Frequency at say 1.00KHz with the NAV/Param.1 encoder; the EQ sub-menu screen will show the

following:

Once in the Band Pass Filter's edit screen, all the filter's parameters can be modified using the

“NAV/Param.1”, “Param.2” and “Param.3” encoders for editing the Filter's Center Frequency, Gain

and Q:

“Center 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.

“Gain”: the selectable Gain range is from -15dB to +15dB in steps of 0.5 dB and can be adjusted

by rotating the “Param.2” 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.

Out-1 Name EQ-1

->1000Hz ------dB Q= 3.5

Out-1 Name EQ-1

->Edit Freq = 1000Hz

Out-1 Name EQ-1

->1.00kHz +3.0dB Q=1.00

Out-1 Name EQ-1

->Edit Freq = 1000Hz

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Fbt DLM26 User Manual Page 44