Marani LPP-480F, User Manual

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−
when the equalizier is bypassed the user can working on the single filter but the graphic of the
filter is shown as flat
−
when the User press on the button “Flat”, all filter will be set to 0dB (but if the filter type of the
filter is Low Pass, High Pass, Notch, All Pass, then the single filter will be bypassed)
−
to change the value of the Q, use the button Left/Right below the text-box or input the value on
the text box and press “Enter”. The Q value is depends from the filter Type.
−
to change the value of the Frequency, input the value on the text box and press “Enter”. The
value must be in Hz without “,” or “.”
−
to change the value of the Gain, the User must after select the fader with mouse (when the
fader is selected the color change => ) press and hold the button left of the mouse
and drag it to up or down or after selected use the key “up”/”down” of the keyboard to
increase/decrease the value or
input the value on text-box above the fader and press enter. (the range is from -15dB to +15dB
step 0.5dB)
−
with a double click (button left) of the mouse on the fader the value of the gain will be changed
to 0dB
−
to change the filter Type, the User must click with the mouse (left button) on the filter type
button.
After press, the system show a pop-up menu with a list of the filter type.
If the Type is Hi-Shelving/Lo-Shelving 1
st
, 2
nd
then the Q is fixed so the control is disabled
If the Type is High/Low Pass, Notch filter then the Gain is fixed so the control is disabled
If the Type is All Pass 1
st
then the Gain,Q are fixed so the controls are disabled
If the Type is All Pass 2
st
then the Gain is fixed so the control is disabled
If the Type is Custom (IIR Filter imported by User) the system loads the last external IIR filter
stored on the device and shows a frame with an “Edit” button (see the picture above). To
working with Custom filter, please see the appendix “Custom IIR Filter”