Presonus Audio electronic Smart Compressor - Manual (Page 14)

CONTROLS & CONNECTIONS
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signal can then be processed by an equalizer for example to reduce
sibilance (de-essing) in a vocal track. The signal is then returned
to the unit via the sleeve of the connector.
The signal sent to the sleeve could be that of a narrator or vocalist.
In this application, the audio that you are passing through the
compressor will automatically ‘duck’ when the narrator speaks or
vocalist sings.
+4/-10 Switch
This switch adjusts the internal operating level of your Blue Max
when it is connected to line level (0dB = -10dBV) gear. With the
switch in the ‘-10’ position, the signal is raised internally so that it
is processed at the lower noise floor of your Blue Max’s internal
circuitry. The signal level is lowered on the way out to match up
with your line level gear’s input. When the switch is in the ‘+4’
position, the signal is not changed since this matches the internal
operating level of your Blue Max.
This function may also be useful in creating special effects with
the compressor and gate of the channel by ‘overcompressing’.
2 . 3 P R E S E T S
Vocal
SOFT - Easy compression. A low ratio setting for ballads allowing a
wider dynamic range. Good for ‘live’ use. This setting lets the vocal sit
‘in the track’.
Threshold Ratio Attack Release
-8.2dB 1.8:1 0.002mS 38mS
MEDIUM - More limiting than preset 1 for a narrower dynamic range.
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