User Manual

Chapter 6: Making Studio Connections 45
Connecting Instruments to
the Mbox Pro
Mbox Pro provides three input types (DI, Line
and Aux In) that correspond to the different sig-
nal strengths output by different types of instru-
ments and other equipment.
DI Input (Front Panel) Instruments such as elec-
tric guitar or electric bass that usually have a
lower level of output than line level instruments
use the front panel DI (“Direct Inject”) input.
Line Inputs (Back Panel) Line level devices, in-
cluding electronic audio sources such as mixers,
samplers, keyboards, and synthesizers use the
back panel Line inputs.
Aux 5/6 (Back Panel) RCA jacks for line level
devices such as a CD players. 1/8-inch mini port
for line level sources such as MP3 players with
stereo connectors. (The RCA jacks and 1/8-inch
mini port are all part of Aux 5/6).
Connecting Electric Guitar or Bass
To use a guitar with Mbox Pro:
1 On the front of the Mbox Pro, plug your guitar
or bass cable into one of the Mic/DI inputs.
2 On the front of the Mbox Pro, make sure the
Front/Rear switch for Mic/DI 1 is in the “out”
position.
3 On the front of the Mbox Pro, turn the master
volume knob to the desired level.
4 On the front of the Mbox Pro, carefully turn
the Gain control knob to the right to increase
the input level of your guitar.
Connecting Keyboards and
Mixers
To use a keyboard or mixer with Mbox Pro:
1 Plug your keyboard (with line outputs), mixer,
or other audio source into any one of the four
Line Input channels on the back of the
Mbox Pro. If your source is stereo (such as a ste-
reo keyboard or the stereo output from a mixer),
connect the left channel (often the white plug)
to Input 1, and right channel (often the red
plug) to Input 2.
2 On the front of the Mbox Pro, set the
Front/Rear switch to Rear or Mic/Line switch to
Line (that corresponds to your channel).
3 On the front of the Mbox Pro, turn the master
volume knob to the desired level.
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.
Connecting guitar to the Mic/DI 1 connector
You can tune your guitar using the on-board
tuner from the front panel of the Mbox Pro.
Hold down the Mono and Dim buttons to
launch the tuner in the Driver Control Panel.
See “Tuner” on page 54.
If your keyboard has unbalanced outputs,
set the line input switch to -10 instead of
+4. Refer to your keyboard’s documenta-
tion.