Front Panel Layout - PRESONUS AudioBox USB User Manual

HARDWARE OVERVIEW

3.1 FRONT PANEL LAYOUT

• Microphone Pre-Amplifier.
PreSonus microphone preamplifiers for use with all types of microphones including Dynamics,
Condensers and Ribbons as well as instruments and line level signals. The award winning
PreSonus preamplifier design is a Class A input buffer followed by a dual servo gain stage.
This arrangement results in ultra low noise and wide gain control allowing the AudioBox USB
user to boost desirable signal without increasing unwanted background noise.
48 Volt Phantom Power.
o
mic preamps via a single push button switch on the front panel.
XLR connector wiring for Phantom Power
•
•
•
Neutrik Combo Connectors.
o
connector using the Neutrik Combo connector. This revolutionary style connector lets you
use either ¼" phone or XLR connectors in the same female input. Both channels of the
AudioBox USB are ¼" instrument and microphone XLR inputs.
• Instrument Inputs (Channels 1 and 2). The ¼" TS connector on channels 1 and 2 are for use
with an instrument (guitar, bass, etc.). When an instrument is plugged into the instrument input,
the mic preamp is bypassed, and the AudioBox USB becomes an active instrument preamplifier.
NOTE: Active instruments are those that have an
instruments should be plugged into a line input rather than into an instrument input. Plugging a
line level source into the instrument inputs on the front of the AudioBox USB not only risks
damage to these inputs but also results in a very loud and often distorted audio signal.
(In other words, don't plug a line level source into the combo jacks of channel 1 or 2.)
Your AudioBox USB is equipped with two custom designed
The AudioBox USB has 48V Phantom power available for both
Pin 1 = GND
Pin 2 = +48V
Pin 3 = +48V
Both channels of the AudioBox USB have a Mic/Line
16 | PreSonus 2008
or a
internal preamp
. Active
line level output