7.3

Chapter 6: Making Hardware Connections 43
3 On the front of the Mbox 2 Academic, turn
the Mix control fully left to Input.
4 Set your instrument’s volume to its optimal
level. For example, the optimal level for most
keyboards is between 80% and 100% of maxi-
mum volume.
5 On the front of the Mbox 2 Academic, care-
fully turn the Gain control to the right to in-
crease the input level of your keyboard.
Digital Input and Output
Mbox 2 Academic provides digital inputs and
outputs for S/PDIF format digital audio. The two
channels of S/PDIF digital input can be used in
combination with the two analog inputs (for a
total of four simultaneous input channels).
Connecting Digital Devices
To connect a S/PDIF device to Mbox 2 Academic:
1 Use two 75-ohm coaxial cables with male RCA
connectors on both ends (purchased sepa-
rately).
2 Connect the device’s S/PDIF output to Mbox 2
Academic’s S/PDIF input port, and the device’s
S/PDIF input to Mbox 2 Academic’s S/PDIF out-
put port.
Using S/PDIF Input
To configure Pro Tools to record from a S/PDIF
device:
1 Choose Setups > Hardware Setup.
2 Choose S/PDIF from the Clock Source selector.
On the front panel, the S/PDIF LED lights to in-
dicate this setting.
3 Click OK.
4 On the recording track, choose the appropri-
ate stereo or mono S/PDIF source from the track
Input selector.
Source selector and Gain control for Input 1
Input 1 Gain
(level) control
Mic/DI
selector
Mic
Mix control
LED
To configure Mbox 2 Academic to record
from a digital source, choose Setups > Hard-
ware Setup in Pro Tools, then select S/PDIF
in the Clock Source.