Manual UC1 © Grimm Audio
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individually instead of global. So if you listen to the first
source, adjust the volume to taste, then switch to the
second source and adjust that volume to a similar level,
flipping between the two sources can be done at equal
loudness. To indicate that compare mode is engaged,
the volume number turns green.
P1 menu
The P1 menu is the first of three Preference menus.
These are settings that are usually only changed to tailor
the UC1 to your system setup.
• Main out. Here you select your main monitor output.
There are three options: LS1 / PMC on cat5, Dig out 1|2
and Ana out 1|2. The selected output will receive
volume control and monitors the audio from the
monitored sources. Its USB channels should be used as
main mastering channels. Their playback will be
interrupted when another monitor source is choosen.
• Max in Analog 1|2. This preference let’s you choose
between 18 dBu or 24 dBu as maximum modulation (0
dBFS) input voltage. The default is 18 dBu, so that an
analog loop with 0 dB gain shows the same return level
as send level (all UC1 outputs have a maximum
modulation at 18 dBu). In case your analog effects loop
has a vintage device that you like to drive to maximum
swing, you can change this setting to 24 dBu so the UC1
input will not be clipped.
• Main out volume. By default it is turned on. Some
people prefer to use an external analog volume control
in stead of the internal digital one. They can disable the
main out volume control here. Volume control of 2nd
out and headphones will still work.
P1 menu.
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