User guide

Avid Mbox Pro User Guide8
Mbox Pro Back Panel Features
Figure 2 identifies each port on the back panel of the Mbox Pro.
Mic Inputs
These two jacks provide XLR inputs for Input
channels 3 and 4. The Mic signal is adjusted by the
each channel’s Gain knob on the front panel.
Insert Jacks
Use these 1/4-inch TRS jacks to patch (or “insert”)
an external analog effect such as a compressor or
limiter onto the input signal, between the preamp
and the A/D converter. Any inserted effects affect
the recorded signal.
These inserts are only active when a connector is
inserted, and are otherwise bypassed. The TRS
jack is configured as follows: Tip=Send; Ring=Re-
turn; Sleeve=Ground.
Monitor Outputs
There are six balanced 1/4-inch TRS analog out-
puts that support line level outputs, multiple stereo
monitors, or up to 5.1 surround monitoring. For
more information on configuring stereo and sur-
round monitoring in the Driver Control Panel, see
“Output Setup” on page 30.
Line Inputs
There are four TRS balanced analog Line inputs on
the back panel for Input channels 1–4. For input
channels 1–2, Line inputs are selected using the 01
and 02 Front/Rear switch on the front panel (set to
“Rear”). For inputs 3–4, Line inputs are selected
using the 03 and 04 Mic/Line switches on the front
panel (set to “Line”). Mic inputs are selected using
the 03 and 04 Mic/Line (set to “Mic”).
Figure 2. Mbox Pro back panel
Power switch
Power input jack
Monitor outputs
Aux inputs 5/6
Foot switch
FireWire ports
Word clock, MIDI
S/PDIF connector
Line inputs
Insert jacks
Mic inputs
+4/–10 switches
(RCAs and 1/8-inch mini)