Booster effect pedal with up to 26 dB level boost for electric guitar
The MXR M133 Micro Amp pedal 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 dropoff is a problem.
MXR M133 Microamp main features:
Footswitch toggles effect On/Bypass (red LED indicates on)
Gain knob adjusts total output volume when micro amp is engaged
Its a signal boost and that is all that it does. I personally have it ALWAYS in my pedalboard. Of course there are cheaper ones but the cheaper ones usually dont sound so good when they boost the signal or they boost only certain frequencies making it sound bad. But this one is so smooth and unnoticeable.
The build quality is VERY good all metal. It certainly will last for many years.
I bought this pedal because I needed to boost my lead parts in some sets, using an acoustic guitar, and I found that the results were optimal even with this instruments. In my electric setup I appreciate how smooth the sound can remain with the pedal inserted. Good construction quality as well useful for many situations. I recommend it!