Specifications
Mbox 2 Getting Started Guide34
Mbox 2 Back Panel Features
Figure 2 identifies each port on the Mbox 2 back panel. 
The Mbox 2 back panel has the following fea-
tures:
USB Port
This standard USB v1.1 connector is used to 
connect your computer to the Mbox 2. One 
standard USB cable is included with your sys-
tem. 
The Mbox 2 is compatible with USB 2.0 ports. 
However, the USB 2.0 bus will switch to the 
slower USB v.1.1 speed to accommodate 
Mbox 2.
MIDI I/O
The MIDI In and MIDI Out ports are standard 5-
pin MIDI ports, each providing 16 channels of 
MIDI input and output. 
S/PDIF Digital I/O
The S/PDIF in and out ports are unbalanced two-
conductor phono (RCA) connectors that utilize 
a full 24-bit, two-channel digital data stream.
The Sony/Philips Digital Interface Format 
(S/PDIF) is used in many professional and con-
sumer CD recorders and DAT recorders. To 
avoid RF interference, use 75-ohm coaxial cable 
for S/PDIF transfers and keep the cable length to 
a maximum of 10 meters. 
In use, the S/PDIF input channels are available 
in addition to the two channels of analog audio 
input. This lets Mbox 2 be used as a 4-in/2-out 
digital audio interface for Pro Tools LE. 
The S/PDIF output channels always mirror the 
main outs 1–2. 
Figure 2. Mbox 2 back panel
USB portS/PDIF Monitor 
Input 1
Input 2
digital I/Ooutputs
(analog 
input 2)
(analog
input 1)
MIDI I/O
Mic
Line
DI Mic
Line
DI










