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Troubleshooting
The Red Box is connected, but no signal is routed
to the Balanced Out jack:
• The Red Box is not receiving power. Insert a
9V block battery, plug in the proper adapter, or
switch the mixer desk‘s phantom power on.
• You are using an unbalanced plug adaptor. Its
pin assignments do not match the Balanced
Out jack‘s. Use a plug and cable corresponding
to the diagram above.
The amp‘s Line Out is connected to the Red
Box, but the signal at the Balanced Out jack is
too weak:
• Ensure the amp‘s Line Out signal is properly
connected to the Red Box‘s Line In jack.
The amp‘s Speaker Out is connected to the Red Box
but the signal at the Balanced Out jack is too power
-
ful and is overloading the mixer/recorder’s input:
• Ensure the amp‘s Speaker Out signal is proper-
ly connected to the Red Box‘s Speaker In jack.
The Balanced Out signal hums:
• The Red Box is not receiving enough power. Check
the battery or AC adaptor.
• The amp and the mixer/recorder’s earth circuits
have formed a ground loop. Activate the ground
lift switch on the bottom of the Red Box with a
small screw driver. Hold the Red Box with the XLR-
Out showing upwards. In left position, the ground
lift is off, in right position, the ground lift is active.
RedBox_BDA1_1_6,5pt.indd 12 10.08.2007 14:42:53