10.6

Table Of Contents
30Logic Pro Instruments
When the source filters are configured in parallel, the signal is split and fed through the
three filters simultaneously.
Source filter parameters
The most common filter controls are listed. Note that the chosen filter type can change
both the name and function of available controls, notably the Cutoff, Resonance, and Drive
parameters. See Logic Pro Alchemy filter types and Logic Pro Alchemy source filter use
tips.
1/2/3 buttons: Select each filter. The three filters are independent and can have unique
settings. The LED at the top of each button shows on (lit) or off (unlit) status.
On/Off buttons: Enable or disable each filter (1, 2, or 3).
Filter type pop-up menu and field: Choose the filter type. Use the descriptive names
Clean, Edgy, Gritty, Rich, Sharp, and Smooth to make a choice that is right for your
sound. You can step through the available filter types with the Previous and Next
buttons (the arrows).
Ser/Par buttons: Set the filter routing configuration. Series runs from filter 1 into filter 2.
Parallel runs the two filters side-by-side.
Cutoff knob and field: Set the cutoff frequency for the chosen filter type.
Resonance knob and field: Boost or cut frequencies above, below, or surrounding the
value set with the Cutoff knob. Resonance behavior varies among filter types.
Drive knob and field: Overdrive the filter. This can lead to intense distortions and
aliasing, depending on filter type.
Send knob: Set the level of the source output (post source filters, if used) sent to the
destinations specified with the Send pop-up menu.
Send pop-up menu: Determine where the source output is sent (post source filters, if
used).
F1/F2: Source output is routed to main filters 1 and 2. The balance between these
targets is set with the Send knob.
F1/FX A/B/C/D: Source output is routed to main filter 1 and effects rack A, B, C, or D.
The balance between these targets is set with the Send knob.