Give yourself a boost when it's time for your solo. It operates with one knob that delivers the right amount of gain when you need it.

MXR M133 Micro Amp Boost Pedal
The MXR M133 adds a preset amount of gain, using a single control. With a guitar, this lets you boost your signal for lead work, adjust between two different guitars with unmatched output (i.e., humbucker to single coils), 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.

Controls
Footswitch toggles amp on/bypass (red LED indicates on) Gain knob adjusts total output volume when micro amp is engaged.

Specifications
Knobs: Gain
Dimensions: 4-3/8 x 2-3/8 x 1-1/4 in.
Weight: 0.9 lbs.
Color: White

zZounds is an authorized dealer of MXR products.