PreSonus FireStudio - Manual (Page 40)

CONTROLS AND CONNECTIONS
37 | PreSonus 2008
 Input Gain/Trim Control. These knobs provide the following gain structure:
o
XLR Microphone Inputs: 54 dB of variable gain (-4 dB to +50 dB)
o
TS ¼” Instrument/Hi-Z Inputs: 54 dB of variable gain (-4 dB to +50 dB)
o
TRS ¼” Line Inputs: 32 dB of variable gain (-16 dB to +16 dB trim adjustment)
 Main. The Main knob controls the output level for the main outputs on the back of the FireStudio and
has a range of -80 db to +10 dB.
 Phones. The Phones knob controls the output level of the headphone output on the front of the unit.
Notice the volume indicator goes to 11; use this setting with extreme caution.
 ¼” Headphone Jack. This is where you connect your headphones to the FireStudio.
 Red-Blue Power/Sync Light. This light is a clock source (sync) indicator. It lets you know if your unit is
receiving word clock correctly. Word clock is a signal with which digital devices sync frame rates.
Proper word-clock sync prevents digital devices from having pops, clicks, or distortion in the audio
signal due to mismatched digital-audio transmission.
o
Blue. FireStudio is correctly synced via FireWire, external ADAT, S/PDIF, or BNC word
clock.
o
Flashing Red and Blue . Sync invalid or not present.
 Power Button. Push this button to turn your FireStudio on. The button will illuminate blue. Push it
again to power down your FireStudio.