PreSonus AudioBox Studio - Manual (Page 6)

2
PreSonus AudioBox ™ Studio
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1 Hook Up your AudioBox Studio
1.1 Front Panel Connections
1.1 AudioBox USB: Front Panel Connections
Input Trim
Controls. These
knobs adjust
the input gain
level for their
respective inputs.
Clip Indicators.
Both channels
feature a clip LED
next to the trim
control. The red
clip indicator LED
will illuminate
when the chan-
nel’s input signal
reaches 0 dBFS.
Microphone
/ Instrument
Preamps. Each
channel of the
AudioBox USB
has a microphone
preamp and
an instrument
preamp. The
combo connector
lets you use either
¼” phone or XLR
connectors in the
same jack. Use
the ¼” jacks to
connect guitars or
other unamplified
instruments. Use
the XLR jacks to
connect your M7
microphone.
48V Button. This
button activates
phantom power
for both micro-
phone preamps.
Phones Level.
This knob controls
the output level
for the headphone
output on the
back of the unit.
Power LED. This
LED indicates
bus power. It
will illuminate
red when the
AudioBox USB is
properly powered.
Main Level. This
knob controls the
output level for
the main outputs
on the back
of the unit.
Mixer Control.
This knob cross-
fades between
the analog input
signal of preamps
and the playback
signal from your
computer. If the
knob is at 12
o’clock the input
and playback
systems will be
equally balanced