Description
The MXR Micro Amp M133 is proof that not every pedal needs to reinvent your sound—sometimes you just need more of it. This is a straightforward clean boost with one job: raise your output level while keeping your tone intact. No coloration, no drama, just added volume exactly where and when you want it.
- Slam it on for lead breaks so solos jump out of the mix
- Level out the output difference between guitars—say, a humbucker-loaded axe versus single coils—so switching between them mid-set doesn’t mean fighting your volume knob
- Park it at the end of a long pedal chain to counteract signal loss and keep your tone punchy all the way to the amp
Operation is dead simple: a single gain knob sets how much boost gets added when the pedal is engaged, and a footswitch flips it on or bypasses it, with a red LED confirming when it’s active. That minimalism is exactly why it earns a permanent spot on so many boards—it does one thing and does it reliably.
Power it with a single 9-volt battery or a Dunlop ECB-003 AC adapter, and it’s ready to work in any chain, any genre, any night.
Whether you’re filling out a pedalboard for the first time or need a dependable boost to round out a rig that already does everything else, the Micro Amp is the kind of pedal that quietly earns its place—which also makes it a smart, affordable gift or stocking stuffer for the guitarist in your life.






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