User guide

Chapter 2: Mbox Pro Hardware Overview 9
+4/–10 Switches
These switches let you select +4 or –10 input oper-
ating 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 ste-
reo 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 in-
cluded power supply. The Mbox Pro requires the
power supply to function. For stand-alone mode
you power on the unit with a power connection 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 oppo-
site 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 Quick-
Punch audio punch-in and punch-out and MIDI
punch-in and punch-out recording are supported.
The footswitch connector is designed specifically
for instantaneous (momentary) on/off pedals with
a 1/4-inch TS connector. Continuous on/continu-
ous 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 documentation.
Breakout cable