User guide

Chapter 2: Mbox Pro Hardware Overview 9
+4/–10 Switches
These switches let you select +4 or –10 input op-
erating levels for Line Input channels 1–2
and/or 3–4. When “out” the level is set to +4 and
when “in” it is set to –10.
Aux Inputs 5–6
The RCA jacks and the 1/8-inch mini are all part
of Aux input 5/6.
 Use the RCA jacks for line-level devices like
CD players or mixers.
 Use the 1/8-inch mini to connect line-level
sources such as MP3 players with an 1/8-inch
stereo connector.
FireWire Ports
These standard FireWire 1394 connectors are
used to connect your computer to Mbox Pro.
The Mbox Pro cannot be powered solely
through its 1394 connection to your computer.
The Mbox Pro requires the power supply to
function.
Power Input Jack
This port supplies power to Mbox Pro using the
included power supply. The Mbox Pro requires
the power supply to function. For stand-alone
mode you power on the unit with a power con-
nection and no FireWire connection.
Power Switch
This button is used to turn Mbox Pro on or off.
Word Clock, MIDI, S/PDIF
Connector
The DB15 connection that handles Word Clock,
MIDI, and S/PDIF is a multi-pin port where you
plug in a breakout cable (included). On the op-
posite end of the cable you can connect to Word
Clock, MIDI, and S/PDIF devices.
Foot Switch Connector
The footswitch connector on Mbox Pro lets you
use a footswitch to control either playback
start/stop or recording punch in/out. Both
QuickPunch audio punch-in and punch-out
and MIDI punch-in and punch-out recording
are supported.
The footswitch connector is designed specifi-
cally for instantaneous (momentary) on/off
pedals with a 1/4-inch TS connector. Continu-
ous on/continuous off pedals can also be used,
but may result in unexpected behavior.
If the device you are connecting to any of
these inputs has unbalanced outputs (or
you are using an unbalanced TS cable), set
the line input switch to -10. For balanced
outputs (using balanced TRS cables), set the
switch to +4. Refer to your device’s docu-
mentation.
Breakout cable