Rocktron Blue Thunder, User Manual

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Front Panel Desccription
9 EQUALIZATION TREBLE/FUNCTION SELECT control
This control is used to adjust the TREBLE LEVEL of the selected preset.
When in the EDIT MODE - (see point 5 - EDIT button) this control is used to select the
desired FUNCTION.
When in Edit mode this control allows access to each function of the Blue Thunder ™ .
These functions include:
Global Compressor Flanger Copy
Mixer Delay Chorus Program Changes
HUSH Reverb Speaker Exciter MIDI Channels
Distortion Tremolo Title Edit MIDI Dump/Load
EQ Phaser Controller Assign Factory Restore
10 BYPASS button/led
When lit, the effects are bypassed and only the input signal is passed to the Blue
Thunder
™ outputs.
11 INPUT LEVEL meter
These LEDs provide visual indication of the peak level of the input signal when the
preset number and title are displayed. For the optimal signal-to-noise ratio, it is best to
adjust the input level so that the last LED (0dB) is rarely lit. This will guard against the
possibility of overdriving the unit.
These LEDs also display the final digital mixer output levels when any other functions
are displayed. This will help you to guard against clipping the output of the mixer at the
digital-to-analog converter.
12 INPUT LEVEL control
This control adjusts the unit’s gain to match the signal level at the input of the Blue
Thunder
™ . Use the INPUT LEVEL meter to determine the setting of this control.
13 OUTPUT LEVEL control and CLIP LED
This control is used to adjust the overall output level of the unit.
The CLIP L.E.D. is part of the output section and, when lit, indicates that the final analog
output is being overdriven due to the Effects Level, Direct Level and Output Level being
set too high. If this should occur, reduce these levels until the L.E.D. does not light.
14 REFERENCE LEVEL switch
This switch adjusts the output range of the unit and may be set at either -10dB or +4dB.
In most situations it is recommended that the -10dB switch setting be used this would
include the following applications BASS GUITAR, EFFECTS LOOP and DIRECT
RECORDING. When more dirve is needed for descrete components such as power
amps the +4dBu position may be used.
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