Technical information

Apollo Software Manual Chapter 8: Unison 150
Apollo, Apollo 8, Apollo 8p
Pressing the Preamp knob cycles the selection of Apollo’s available preamp channels. A
channel is selected for adjustment when its channel select indicator LED (located above
the channel input meters) is lit. If stereo linking is active, the stereo pair LEDs are lit.
Apollo Twin
Either of these methods can be used for channel selection with Apollo Twin:
• Level Knob – After the Preamp switch has been pressed at least once to switch
the unit to Input mode, pressing the Level knob alternates the currently selected
input channel (CH1 or CH2).
• Preamp Switch – After the Preamp switch has been pressed at least once to
switch the unit to Input mode, pressing the Preamp switch alternates the currently
selected input channel (CH1 or CH2).
An Apollo Twin channel is selected for adjustment when its channel selection indicator
LED (CH1 or CH2, above the input meters) is lit. If stereo linking is active, both indica-
tors LEDs (CH1 and CH2) are lit.
Gain Stage Select (Unison operation only)
When the currently selected Apollo channel is in Gain Stage Mode, pushing the level
knob changes the Unison plug-in’s parameter that is being controlled.
The color of Apollo’s front panel preamp gain level indicator (the LED ring around the
knob) changes to reflect the gain stage being controlled, and the gain stage is also in-
dicated by the matching color of the indicator dot within the Unison plug-in’s interface.
For complete details, see Gain Stage Mode.