Owner's Manual

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The options are:
• 1-2 – Monitor Outputs 1 & 2 (default setting)
• 1-4 – Monitor Outputs 1 & 2 and Line Outputs 3 & 4
• 1-6 - Monitor Outputs 1 to 4 and Line Outputs 5 & 6 – Scarlett 18i20 only
• 1-8 - Monitor Outputs 1 to 4 and Line Outputs 5 to 8 – Scarlett 18i20 only
• All – Monitor Outputs 1 to 4 and Line Outputs 5 to 10 – Scarlett 18i20 only
• None – The rotary control is disabled; output levels may still be controlled from the software
faders.
NOTE: Assigning outputs 7-8 and 9-10 to monitor control will affect the level of the headphone
outputs as they are shared.
In the Output tabs on the Output Routing page, the fader “knob” will be green for the outputs
assigned to the hardware rotary control. This means that the on-screen fader is inoperative and you
have to adjust the level of those outputs from the front panel. However, the on-screen fader position,
plus Mute and Dim status will reflect the hardware control’s operation.
Speaker Switching
The Scarlett 18i8 and 18i20 support Speaker Switching, which lets you swap between two pairs of
monitoring speakers very easily.
To use Speaker Switching, first click on Speaker Switching > Enable, and then select MAIN or ALT
at the top of the main page. On the Scarlett 18i20, you can also use the ALT button the front panel
of the interface. The ALT LED illuminates when ALT is selected. When MAIN is selected, the ALT
Outputs are muted, and vice-versa. Note that on disabling Speaker Switching, both MAIN and ALT
outputs will be muted: also any additional outputs which have been assigned to the rotary MONITOR
control will be muted. This is a safety feature and the outputs will need to be unmuted (in the Output
tabs) as they are required.
Sample Rate
Your Scarlett interface is able to operate at any of six sample rates: 44.1 kHz, 48 kHz, 88.2 kHz,
96 kHz, 176.4 kHz and 192 kHz. The default sample rate is 48 kHz. Select an alternative sample rate
if needed. Higher sample rates will generally reduce the total number of channels available – see
your interface User Guide for more information.
IMPORTANT
Note that the optical input is disabled when sample
rates of 176.4/192 kHz are is use. Custom mixes are also
disabled at these sample rates.