Product images are provided for reference and may not represent the exact model, configuration, or included components.

At A Glance

Input Impedance
1 MΩ
Output Impedance
5.5 kΩ
Nominal Intput Level
-22 dBV
Maximum Output Level
+3 dBV
Noise Floor
84 dBV
Tone Control
±6.5 dB at 3 kHz
Distortion Gain
22 dB to 50 dB, 1 kHz
Bypass
True Hardwire
Current Draw
3.5 mA
Power Supply
9 Volts DC
Description

Dunlop produced the M115-U as part of the MXR Distortion III line, positioning it as a distortion pedal capable of covering a wide gain range — from overdrive-weight clipping through to heavy distortion tones.

The unit operates on a 9-volt DC supply and draws 3.5 mA. Input impedance is rated at 1 MΩ with an output impedance of 5.5 kΩ. Gain is adjustable across a range of 22 dB to 50 dB at 1 kHz, and a tone control provides ±6.5 dB of cut or boost centred at 3 kHz. Nominal input level is −22 dBV, maximum output level is +3 dBV, and the noise floor is rated at 84 dBV. Bypass is implemented as true hardwire, leaving the signal path unaffected when the pedal is disengaged.

Owners sourcing a replacement power supply should confirm the 9-volt DC polarity and current requirement against their existing supply before substituting. For any internal service or fault diagnosis, a qualified guitar technician or electronics repair technician is best placed to assist.

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