Filters
Figure 15.
Filter section
A
B
A. Filter 1 B. Filter 2
Z3TA+ 2 filters have two modes of operation, which is selected by the Parallel/Dual switch.
In Parallel mode, each filter-bus is routed through its own individual filter - before being passed to a
stereo panner and level control. This mode is directly reflected in the filter section' s graphic layout.
In Dual mode, there are actually four filters in total – two in series on each bus. The two buses now
have identical configurations, with each bus' signal passing first through a filter whose settings are
displayed in the upper plot, then through a filter described by the lower plot. Each bus is still directed
to its own panner and level control. Using the Dual mode, you can create, for example, 72dB/Octave
Lowpass filters (using two 36dB/Oct filters), or any number of other unique combinations of the two
filter sets.
The 24dB/Oct and 36dB/Oct LPF filters in Z3TA+ are composed of two sections (three for the 36 dB/
Oct), to support a Separation parameter that allows for a cutoff separation between the component
filters. For more information, see "The Modulation Matrix" on page 38.
The Link button lets you adjust controls in both filters at same time. In this way, when Link is active,
adjusting the level of Filter1 also adjusts the level of Filter2.
Note: When Link is active, adjusting the Pan control in Filter1 to left will result in Filter2 pan
being adjusted to right. This allows spreading the filters in stereo by using only one control.
30
The Synthesizer