MXR M133 Micro Amp Gain / Boost Pedal

Gain Boost Pedal with Level Control, LED indicator, and Footswitch
MXR M133 Micro Amp Gain / Boost Pedal image 1
MXR M133 Micro Amp Gain / Boost Pedal image 1
Sweetwater Savings: $34.29 MSRP: $114.28

Or just $4/month§ for 24 months

0% interest for 24 months*. 24 equal monthly payments required. Valid through 6/25/2017. Learn more

In Stock!
Available for immediate delivery!

Share this with your friends:

Most popular accessories & related items...

MXR M133 Micro Amp Gain / Boost Pedal
In Stock!

Take Control of Your Guitar Rig's Gain Levels!

The MXR Micro Amp level booster pedal lets you take control of your volume level before your signal goes to the amp! Boost your signal for leads and switch it on when you need it. Use the Micro Amp to match the output levels of your humbucker-equipped guitar and your single-coil axe. Push your tube amp into that golden tone zone. If you use several pedals, this handy unit lets you bring your signal back up to the level you need before it goes to the amp. Give your rig a boost — use the Micro Amp!

MXR Micro Amp Level Booster Pedal Features:
  • Footswitch toggles amp on/bypass
  • Red LED indicates "on"
  • Gain knob adjusts total output volume when micro amp is engaged
  • Power: Single 9-volt battery or Dunlop ECB-003 AC adapter (sold separately)
  • Tough, compact metal enclosure
The MXR Micro Amp puts your guitar and pedal volume levels right at hand!

Additional Media

Micro Amp User Manual

Tech Specs

Pedal Type Gain Boost
Inputs 1 x 1/4"
Outputs 1 x 1/4"
Power Source 9V DC power supply required
Batteries 1 x 9V optional
Height 2.5"
Depth 5.5"
Width 4.5"
Weight 0.84 lbs.
Manufacturer Part Number M133

Customer Reviews

Based on 9 reviews
Write your review

Perfect !

I should say perfect for my rig. I tried a bunch of more expensive boost pedals and this one beats them all out. I love the sound of my amp and this pedal gives me a little more of the same sound when I need it. Works great in front or in the loop.
Music background: 30+ years

Great pedal. Quiet & deliver's perfect clean boost.

Added in the front of my pedal board and adjusted so I can engage it with my Strat & have even output level with my LP. My pedals really like the boosted signal too.
Music background: Hobbyist that plays in several bands

Simple is good.

One knob, no coloration, unity gain was minimal setting and so it is easy to set the lead boost level.
Music background: Recording Engineer

The Best Pedal

the best pedal booster !
Music background: Pro Musician

the best boost pedal out there

Mxr micro amp is the perfect boost pedal i was looking for.The staff was very helpful in selecting the sound i was going for.Thanks Sweetwater,more business coming your way from me
See also: Distortion Pedals, MXR, MXR Distortion, Overdrive, Boost & Fuzz