This section contains all the knobs & buttons associated with the Filter
12dB - Button
18dB - Button
24dB - Button
These buttons select the slope of the cutoff curve of the Filter. Only one can be selected at once. The effect is similar to a “Q” con-
trol on a parametric EQ. In the 12db position the Cutoff Frequency slope is less steep so in a Low Pass Filter the higher frequen-
cies are not attenuated as much as they are in the 24 or 18db positions. This makes the resulting filtering in the 12db position
more subtle than the 24db or 18db positions which you should select if you want the Cutoff Frequency to be more obvious.
Low - Button
High - Button
Band - Button
These buttons select the type of Filter to be used in this program. All have a very different sound. Below is a description of what
parts of the sound the different Filters allow through the Filter. The Low button configures the Filter into a Low Pass Filter. A Low
Pass Filter allows harmonics below a set frequency to pass through the Filter. Hence the name Low Pass Filter. The High button
configures the Filter into a High Pass Filter. A High Pass Filter allows harmonics above a set frequency to pass through the Filter.
Hence the name High Pass Filter. The Band button configures the Filter into a Band Pass Filter. A Band Pass Filter allows har-
monics at a set frequency to pass through the Filter, the harmonics above & below the set frequency do not pass through the Filter.
Hence the name Band Pass Filter. The setting of these buttons is memorised with a Program.
Special - Button
When the special filter button is pressed the display shows:
The higher parameter is “Filter type”. In this case with a value of Res LPF.
This parameter determines what type of Special filter is applied. Use the Higher data knob to adjust this parameter. There are 9 dif-
ferent special filters. Each one is made up of 2 filter blocks. The “Hyper Resonant” types are in series & are the Res LPF, Res BPF
& Res HPF filters. These types are very resonant & the Filter width parameter allows the Cutoff frequencies of each filter block to
be set at different frequencies. The rest of the filter types have the 2 filter blocks in parallel. Again the Filter width parameter allows
the Cutoff frequencies of each filter block to be set at different frequencies. The range of this parameter is Res LPF, Res BPF, Res
HPF, Notch, LPF + LPF, BPF + BPF, HPF + HPF, LPF + BPF, & BPF + HPF. This parameter is memorised with a program.
Filter type Res LPF
Filter width OO
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