Setting Hardware Input & Output Levels - Universal Audio Apollo Twin Customer Support Information

10/8/2015
Firmware updates for the Apollo Twin hardware may be included within the software to enhance system functionality.
For optimum results, always update the firmware by clicking "Load" if prompted by the software.
The software will guide you through the firmware update process; be sure to follow the instructions on screen. Most importantly,
power off then power on the unit after the "Power Off UAD Device" window appears.
The Apollo Twin software prompts for firmware updates automatically (if available).
For complete firmware update information, see the firmware support page.
Important: Do not interrupt system power during any firmware update routines.
What Next?
Learn how to set gain levels for the mic, line, and instrument inputs, and output levels for the monitor speakers and headphones.
Instructions are in the next section.
Setting Hardware Input & Output Levels
This section explains how to operate the panel controls so you can set input gain levels for the inputs (mic, line, and Hi­Z), and
adjust volume levels for the outputs (monitors and headphones).
Refer to the top panel illustration below for the control names and numbers mentioned in this section. For detailed descriptions of
all Apollo Twin controls, see the Apollo Twin Hardware Manual.
Important: Before proceeding, lower the volume of the monitor speakers and remove headphones from your ears.
Apollo Twin's top panel
Set Input Gains
1. Select the input channel to be adjusted by pressing the PREAMP button (9) until the Channel Selection Indicator (3) displays
the desired channel (CH1 or CH2).
2. Select the input type (mic or line) by pressing the INPUT Select button (11) until the Input Type indicator (5) displays the desired
input jack* (see note below).
3. Adjust the channel's input gain by increasing the Level knob (1) until the input meter for the channel (4) approaches maximum,
but does not reach the red clip LED when the input signal is present. If the level is too high to avoid clipping (when the red "C"
LED illuminates), press the PAD button (11).
To set the input gain for the other input channel, repeat steps 1 – 3.
Adjust Output Volumes
1. Select the output volume to be adjusted (monitor or headphones) by pressing the MONITOR button (10) until the Monitor
Selected (6) or Headphone Selected (8) indicator is lit.
2. Adjust the volume level by carefully increasing the Level knob (1) until the desired volume is reached (you may need to adjust
the volume of the speakers).
To set the other output volume (monitor or headphones), repeat steps 1 – 2.
Mute (and Unmute) Monitor Outputs
1. Select the Monitor outputs by pressing the MONITOR button (10) until the Monitor Selected (6) indicator is lit.
http://www.uaudio.com/support/apollo­twin­support#quickstart
Apollo Twin Support Page
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