User guide
Avid Mbox Pro User Guide2
• Two additional channels of analog audio input
with high quality microphone preamps. Each
input channel 3–4 provides:
• 48v Phantom Power and inserts
• Analog input jacks include two XLR Mic
connectors on the rear panel, and two 1/4-
inch TRS Line connectors with switchable
+4/-10 input level also on the rear panel
• Mic preamps feature a –20 dB pad and soft-
limit switch separately on each analog input
channel
• Mic signal is adjusted by the Gain knob for
each channel
• Two channels of analog audio input via RCA or
1/8-inch connectors (Aux 5/6). Each input chan-
nel provides:
• Analog input jacks provide an unbalanced
line input on either RCA connectors or a 1/8-
inch mini stereo connector (common for con-
necting most MP3 players)
• Inputs are fully functioning inputs to
Pro Tools as well as providing an alternate
monitor source using the Speaker button
Analog Outputs
• Six balanced 1/4-inch TRS analog outputs,
supporting line level outputs, multiple stereo
monitors, or up to 5.1 surround monitoring
• Insert jacks (1–4) for inserting external
processing devices on input channels
• 24-bit A/D and D/A converters, supporting
sample rates of 44.1 kHz, 48 kHz, 88.2 kHz,
96 kHz, 176.4 kHz, and 192 kHz
Digital I/O
• Two channels of S/PDIF digital input and out-
put. S/PDIF inputs are available independent of
and in addition to analog inputs 1–6. S/PDIF
outputs are always available in Pro Tools
MIDI
• One MIDI In and one MIDI Out port, providing
16 channels of MIDI input and output
Other Capabilities and
Specifications
• Front panel “Multi” button, assignable to a
variety of common Pro Tools functions
• Low latency direct record monitoring
• On-board tuner
• Two 1/4-inch (TRS) stereo headphone outputs
(A and B) with independently adjustable level
and routing controls
• Control room functionality including front panel
Dim/Mute, Mono and Speaker/Source switches
• Footswitch jack for starting or stopping play-
back or punching in and out while recording
• Multi-pin port (DB15 connection) that handles
Word Clock, MIDI, and S/PDIF via included
breakout cable