Dunlop M234-DUNLOP-U
Dunlop M234-DUNLOP-U
Dunlop M234-DUNLOP-U
Dunlop M234-DUNLOP-U
Dunlop M234-DUNLOP-U
Dunlop M234-DUNLOP-U
Dunlop M234-DUNLOP-U MXR Analog Chorus Pedal
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
1 kΩ
Noise Floor - Effect On
-96 dBV
Noise Floor - Bypass
-106 dBV
LOW Tone Control
70 Hz to 800 Hz 12 dB/oct shelf
HIGH Tone Control
660 Hz to flat 6 dB/oct shelf
Bypass
Buffered
Current Draw
13 mA
Power Supply
9 volts DC
Description

Dunlop positioned the MXR Analog Chorus (M234) in the MXR effects line as a chorus pedal built around analog signal processing. It carried five controls — Rate, Level, Depth, High, and Low — offering more tonal shaping than a basic two-knob chorus unit.

The pedal ran on a 9-volt DC power supply and drew 13 mA. Input impedance was rated at 1 MΩ and output impedance at 1 kΩ. The two tone controls provided active shelving: the LOW control swept a 12 dB/octave shelf between 70 Hz and 800 Hz, while the HIGH control offered a 6 dB/octave shelf from 660 Hz to flat. The noise floor measured -96 dBV with the effect engaged and -106 dBV in bypass. Bypass mode was buffered rather than true-bypass.

Owners setting up or servicing this pedal — particularly those adjusting internal trimmers or sourcing a replacement power supply — should consult a qualified guitar technician familiar with analog effects circuitry.

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