
Owner
’s Manual
7
Owner’s Manual
Hookup Diagrams
Here we connected a six-string guitar to the input jack of the MDB-1A. The thru jack is then connected to
an amplifer, BUT... you have options! If the merge switch is turned on, the thru jack works as a second input
which works great for stereo instruments such as synthesizers and other media players.
The rear panel of the MDB-1A is exactly the same as the MDB-1P except with two additional switches. Like the
MDB-1P, we connected a single XLR cable from the MDB-1A output jack to a mixer’s input jack.
Listen to the sound to determine if the polarity switch should be at 0˚ or 180˚ and if the low cut switch should
be turned on or left off.
Note: While we used a Mackie ProFX12v2 mixer in this example, you could connect the output of the MDB-1A
to the input jack of an audio interface instead. The Mackie Big Knob Studio and come to mind!
Typical MDB-1A Setup
power
input
reverb
master
gain
treble
middle
bass
volume
channel
1
1
2
gain
treble
middle
bass
volume
2
off
on
standby
TDSK
half
full
INPUT
MERGE
PAD
THRU
ON
OFF
0 dB
-20 dB
POWER
OUTPUT
POLARITY LOW CUT
GROUND
LIFT
OFF
ON
180°
0°
48V
MUTE
MUTE
MUTE
MUTE
MUTE
MUTE
MUTE
MUTE
MUTE