
™
Duke of Tone Overdrive
CSP039
Designed in conjunction with indie pedal builder
Analog Man, the MXR Duke of Tone Overdrive is for
players who want to add a touch of warmth and grit
to their rig while allowing the natural tone and feel of
their high-end gear to shine.
jimdunlop.com/csp039

External Controls
3
2
4
5
1
1 Footswitch toggles effect on/off (white LED indicates on)
2 OD/BOOST/DIST switch sets clipping mode
3 VOLUME knob adjusts overall output level
4 DRIVE knob adjusts overdrive intensity
5 TONE knob adjusts overall EQ
CSP039 | MXR® Duke of Tone™ Overdrive 2

Basic Operation
Power Directions
The MXR® Duke of Tone™ Overdrive is powered
by the Dunlop ECB003 9-volt adapter or an MXR®
Brick™ Series power supply. This pedal cannot be
powered by a battery.
1. Run an instrument cable from your instrument to the
CSP039’s INSTRUMENT jack and another instrument
cable from the CSP039’s AMPLIFIER jack into your
amplifier’s input.
2. Start with knobs set to 12 o’clock.
3. Turn effect on by depressing the footswitch.
4. Use OD/BOOST/DIST switch to select your preferred
clipping style:
OD mode engages soft clipping for a touch of grit and
compression. Boost mode bumps up your signal loudly
and clearly with no clipping. Distortion mode engages
hard clipping for a grittier, more compressed sound and
a bump in output level.
5. Rotate VOLUME knob clockwise to increase overall
volume or counterclockwise to decrease it.
6. Rotate DRIVE knob clockwise to increase overdrive
intensity or counterclockwise to decrease it.
7. Rotate TONE knob clockwise for a brighter sound or
counterclockwise for a warmer sound.
CSP039 | MXR® Duke of Tone™ Overdrive 3

Specifications
Input Impedance
Output Impedance
Bypass True Bypass
Current Draw 6 mA
Power Supply
> 450 kΩ
< 10 kΩ
9 volts DC
CSP039 | MXR® Duke of Tone™ Overdrive 4