MXR42 OPERATION
General Operation
Power On/Off
Source
Loud
Auxiliary Input
Volume
Select Audio
Bass
Treble
Balance
Fader
Preset EQ Curves
Press 
to turn the unit on. Press and hold 
for more than two seconds to turn the unit off.
Press SOURCE to select between AM/FM, auxiliary input, USB or SD Card modes. Modes of operation are indicated in the display. SD and USB modes will not appear unless an SD Card or USB device is connected.
Press and hold LOUD for more than 2 seconds to activate and deactivate the loudness feature. Activating this feature will enhance the bass and treble frequencies when listening to music at low volumes.
Insert a 3.5mm connector in the front panel AUX port. Connect the other end of the 3.5mm connector to the headphone output of an audio device, MP3 player, etc.
Adjust volume using the volume knob
Press AUDIO to select between Bass, Treble, Balance and Fader.
BASS 
TREBLE 
BALANCE 
FADER
Press AUDIO until BASS appears
Rotate the volume knob left/right to adjust
Press AUDIO until TRE appears
Rotate the volume knob left/right to adjust
Press AUDIO until B 00 appears
Rotate the volume knob left/right to adjust
BL 15 (left) to BR 15 (right)
Press AUDIO until F 00 appears
Rotate the volume knob left/right to adjust
FR 15 (rear) to FF 15 (front)
Press EQ for more than two seconds to activate the first preset EQ, then press and hold EQ again to select between POP, CLASSIC, ROCK and USER. Manual adjustments to the bass and treble settings are saved as USER.
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