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M103 BLUE BOX POWER DESCRIPTION DIRECTIONS SPECIFICATIONS • Fuzzes up your guitar signal, then The MXR Blue Box is powered • Run a cable from your guitar to • Rotate the OUTPUT knob Input Impedance 1 MΩ duplicates it two octaves down by one 9-volt battery (remove the Blue Box’s INPUT jack and to increase overall volume of Output Impedance <20 kΩ bottom plate to install), a 9-volt run another cable from the Blue effect or counterclockwise to • Blend control sets mix of wet Input Sensitivity Level -56 dBV AC adapter such as the Dunlop Box’s OUTPUT jack to your decrease it. and dry signals Nominal Input Level -22 dBV ECB003/ECB003E, or a DC Brick amplifier. ™ • Rotate BLEND knob clockwise Max Output Level -5 dBV power supply. • Turn the OUTPUT knob to increase amount of sub-octave Noise Floor* >100 dBV...
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