SUNSYN Filter
The SUNSYN filter consists of four cascaded filter poles. As we know, each pole has a slope
of 6dB. Therefore, you get a classic 24dB 4 pole filter.
The 2-pole switch allows you to route the signal to the mixer after only 2 poles. This way, you
get a 12 dB 2 pole filter. Note that the resonance works on all 4 poles, even in 2 pole mode!
This means the resonance will behave as on a 4 pole filter, even when the SUNSYN’s filter is
set to 2 pole mode. Thus we overcome the disadvantage of the weak resonance of a 2 pole
filter! Therefore, the two pole filter of the SUNSYN can also self-oscillate easily.
The SUNSYN filter isn’t restricted to a fixed 1, 2, 3 or 4 pole setting. You can also set
anything inbetween these standard settings. To do this, just set the cutoff frequency of each pole
by turning the Pole-knob. Depending on what pole has what cutoff frequency setting, the
resulting filter slope of the entire filter changes. The more the individual pole settings resemble
eachother, the steeper the general filter slope will become. The more different the individual
pole settings are, the flatter/softer the filter will be. Thereby, the resonance also becomes less
effective.
The cutoff and the resonance knobs always affect the entire filter setting.
VCF Filter
3-6
034
Single Mode
Hi
Lo
Hi
Lo
Hi
Lo
+
1. Pole
+
2. Pole
+
3. Pole
+
4. Pole
+
Input
Pole 4
Pole 3
Pole 2
Pole 1
Key Track
Cutoff
Env Amt
e n v e l o p e 1
Attack
Decay
Sustain
4. Pole
2. Pole
Output
Resonance
Morph
Hi
Lo
thebook-all 07.11.2002 18:28 Uhr Seite 34 (Schwarz Bogen)
