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

At A Glance

Input Impedance
800 kΩ
Output Impedance
< 120 Ω
Max Input Level
+6 dBV
Max Output Level
+20 dBV
Noise Floor
-82 dBV (+19.5 dB gain)
Power Requirements
12.5 mA @ 9VDC
Housing
Mini
Description

Dunlop positioned the M293-U MXR Booster Mini as a compact effects pedal combining the preamp character associated with the Echoplex Preamp circuit with the boosting functionality of the MXR Micro Amp, housed in a reduced-footprint mini enclosure.

The unit operated on 9VDC at 12.5 mA, placing it within standard pedalboard power supply territory. An input impedance of 800 kΩ and an output impedance of under 120 Ω defined its buffering behaviour in a signal chain. The pedal accepted up to +6 dBV at the input and could deliver up to +20 dBV at the output, with a measured noise floor of -82 dBV at +19.5 dB of gain.

Owners tracing signal-chain issues or sourcing a compatible power supply should consult a qualified guitar technician, who can verify impedance matching and confirm that the supply meets the 9VDC centre-negative standard common to MXR-format pedals.

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