PreSonus GTX44 - Manual (Page 8)

+4/-10 Switch
This switch adjusts the insert operating level of the sidechain of your GTX44 when it is connected to line level (0dB = -
10dBV) gear. With the switch in the '-10' position, the sidechain signal is raised internally. The main audio path is not
affected, only the processing level is. When the switch is in the '+4' position, the signal is not changed since this matches
the internal sidechain operating level of your GTX44. The +4/-10 does not change the audio level through the GTX44. . It is
important to remember that Pro Gear has a hotter +4 level, whereas consumer gear runs at the lower level of -10.
Sidechain
It is sometimes impossible to set a noise gate to open precisely when an instrument sounds in a noisy environment. Most
gates feature an external gate key that will allow the gate to be opened using an external signal, in effect ‘triggering’ the
gate to open. For example a bass guitar gate might be ‘triggered’ using the kick drum to tighten up the low end of a mix. Or
a snare track might be ‘triggered’ using a click track or sequencer to place the snare right in time with the music.
2.7 POWER
Power Connection
The power jack on your GTX44 accepts a standard IEC cord like those found on most computers and professional recording
equipment. Your GTX44 contains a custom built in power supply, no wall wart. This way you can be assured of clean power
combined with rugged construction that has been designed to last!
Power Switch
I = ON, 0 = OFF.