MXR Micro Amp M133

The MXR Micro Amp M133 adds a preset amount of gain to the input signal using a single control. This lets you adjust between two different input devices with unmatched output, or it can supply a permanent boost in a long effects chain where signal drop off is a problem. Powered by a single 9 volt battery or Dunlop's ECB-003 AC adapter (or equivalent).

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