Behringer Blue Devil GX112 - The Rear Panel; The Rear Panel Connectors

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BLUE DEVIL GX112
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The 1/4" stereo jacks allow you to monitor the BLUE DEVILs audio signal with a pair of commercially
available headphones. Connecting the headphones will mute the built-in speaker.
+ Since speakers can have quite an impact on the sound of a guitar amp, both the headphones
and LINE OUT signals are frequency-corrected (speaker emulation). Without this frequency
correction extreme treble frequencies would deteriorate the sound. You can still tap the
unprocessed signal directly after the pre-amp (INSERT SEND jack), without interrupting the
signal path inside the amplifier (INSERT RETURN jack may not be used in this case). Starting
with a certain volume level, low-impedance headphones may begin to produce distortion. In
such a case, please reduce the volume by turning back the VOLUME controls.
1.3.2 The rear panel
Fig. 1.3: The rear panel connectors
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Use the POWER switch to put the BLUE DEVIL into operation.
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FUSE HOLDER / VOLTAGE SELECTOR. Please make sure that your local voltage matches the voltage
indicated on the unit, before you attempt to connect and operate the BLUE DEVIL. Blown fuses may
only be replaced by fuses of the same type and rating. Some models allow for inserting the fuse holder
in two different positions, in order to switch over from 230-V to 115-V operation, and vice versa. Please
note that for 115-V operation outside Europe, you need to use a fuse of a higher rating (see chapter 5
INSTALLATION).
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Use the enclosed power cord to connect the unit to the mains.
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SERIAL NUMBER. Please take the time to fill out the warranty card completely and return it within 14
days after the date of purchase, so as to be entitled to benefit from our extended warranty. Or use our
online registration option available on the World Wide Web (www.behringer.com).
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MIDI IN. This connector gives you MIDI remote control over your BLUE DEVIL. You can change parameters
using controller information, switch over effect programs, change channels and bypass the effects module
by means of program change instructions.
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The LINE OUT provides the BLUE DEVILs audio signal in stereo, for example, to send it to a recording
machine. This output is frequency-corrected.
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The AUX IN allows you to feed in additional stereo signals, for example, to play with a drum computer
or some sort of playback. Additionally, you can use the AUX IN in combination with the INSERT SEND
as a parallel effect path: connect the INSERT SEND to the input and the AUX IN to the output of the
effects device (INSERT RETURN jack should not be used in this case!) Thus, the signal path inside the
amplifier will not be interrupted and you can add the effect portion from the external device, using the
AUX control described above . Please note that the external effects device must be set to 100% wet
for this purpose.
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The BLUE DEVIL also features a serial insert path for external effects such as a wah-wah pedal. This
is the INSERT RETURN jack you need to connect to the output of the effects device.
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This is the INSERT SEND jack that can be connected to the input of an external effects device.
1. INTRODUCTION