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MXR M-133 Micro Amp Pedal  

Item #: 
1274228082166
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The MXR M-133 Micro Amplifier 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 2 different guitars with unmatche... Click To Read More About This Product

Available 01-26-2017 You will not be charged until order ships. Email me when this is in stock.

Price:
$7999
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Overview

The MXR M-133 Micro Amplifier 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 2 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. Power: Single 9-volt battery or Dunlop ECB-003 AC Adapter - Controls: Footswitch toggles amp on/bypass (red LED indicates on) Gain knob adjusts total output volume when the Micro Amp is engaged.

Warranty
MANUFACTURER'S WARRANTY
All pedals - one year parts and labor warranty.


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Pro Coverage gives you added warranty protection for your new gear. Stepping in where the manufacturer's "normal wear and tear" coverage ends, our Pro Coverage program offers you upgraded coverage if your product ever fails Read More.

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  • Customer Reviews
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Review Snapshot

by PowerReviews
MXRM-133 Micro Amp Pedal
 
4.9

(based on 57 reviews)

Ratings Distribution

  • 5 Stars

     

    (52)

  • 4 Stars

     

    (4)

  • 3 Stars

     

    (1)

  • 2 Stars

     

    (0)

  • 1 Stars

     

    (0)

100%

of respondents would recommend this to a friend.

Pros

  • Excellent sound quality (12)
  • Compact (11)
  • Responsive (11)
  • Versatile (4)

Cons

No Cons

Best Uses

  • Performances (12)
  • Outdoor events / games (7)
  • Home studio (6)
  • Professional recording (6)
  • Amateur recording (4)
    • Reviewer Profile:
    • Experienced (10), Professional musician (5)

Most Liked Positive Review

 

Does what it should and then some!

This pedal is great. I was looking for something to boost my overdrive tone when I switch out of rhythm into leads. I use a Boss SD-1 super overdrive pedal for a lot...Read complete review

This pedal is great. I was looking for something to boost my overdrive tone when I switch out of rhythm into leads. I use a Boss SD-1 super overdrive pedal for a lot of lead stuff, but I also like it for rhythm- this makes it tricky when I don't want to change my tone necessarily, but I need to boost into a lead riff that can cut through the mix (and jump over a drummer who makes brushes sound like broad-swords.) My other distortion is a ProCo You Dirty Rat, but it's too sustain-y to use as a base tone on most songs and I use it mostly as an accent effect for really heavy fuzz or long sustained bends, etc. I'm playing through a Peavey Express 112 (yeah, I know) so obviously the distortion tone coming from the gain channel is worthless. BUT, the clean tone is pretty decent and I'm broke, which is why I still don't have a Fender twin reverb or similar. Anyway, I was going to buy yet another distortion pedal (m78?) so I could have a base distortion and a lead OD but then I found the M-133 and my problems disappeared. Basically, it makes you louder when you need to be. End of story. Super simple, and good at what it does. But it DOES warm up your tone a bit... I happen to LOVE the subtle, subtle change, but be warned, it is there. I found that running it before my SD-1 gave me the best boost sound for that pedal- just a bit more sparkle, warmth, and fullness without any extra sustain or squeeze- sort of like a compressor without the compression, I guess. Same thing goes for my clean tone and clean with reverb. I did notice that it doesn't do much for my ProcoYDR, but all that fuzz makes it hard to tell.
Basically, I bought it to drive my clean reverby tones and my SD-1 and I couldn't be happier with it.
I give it five stars here because even though it only has one knob, it's pretty versatile! Doesn't change your tone, but it does warm it up just slightly at higher gain, and frankly, it sounds GREAT.
Metal case feels super solid, input/output jacks and the 9V recepticle are all snug. Knob doesn't wiggle.
Well, I got lucky and got mine pretty cheap from a guy who bought it from MF and never used it, but even at the retail price I'd say it's a good deal, because it does it's job well and really isn't that expensive. I'd buy it new again if something happened to mine.

VS

Most Liked Negative Review

 

Review

This pedal does not 'make your guitar louder' when activated. At least the one I got doesn't. When activated on a clean channel, all the way 'down' - no change, turn...Read complete review

This pedal does not 'make your guitar louder' when activated. At least the one I got doesn't. When activated on a clean channel, all the way 'down' - no change, turn up the knob, it adds distortion??? Not exactly what the product claims it does. Maybe mine's broke. ??

Reviewed by 57 customers

Displaying reviews 1-10

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5.0

Great boost pedal

By Mr. Wonnderful

from Steamboat Springs, CO

About Me Experienced

Verified Buyer

Pros

  • Excellent Sound Quality
  • Responsive

Cons

    Best Uses

    • Performances

    Comments about MXR M-133 Micro Amp Pedal:

    This is a great boost pedal and adds a touch of overdrive when dialed past 1:00.

    (1 of 2 customers found this review helpful)

     
    5.0

    Essential and Versatile

    By Aaron

    from Ohio

    About Me Professional Musician

    Pros

    • Compact Design
    • Good Selection Of Effects
    • Versatile

    Cons

      Best Uses

        Comments about MXR M-133 Micro Amp Pedal:

        I've had an MXR Micro Amp for 13 years now. Pedal has never failed and it is definitely essential to my board after having used it for so long. I use it last in my chain right before the amp to boost signal loss when running through eight other pedals...use it for volume control live if people are saying I need to turn up in the middle of a song...and use it when playing acoustic to eliminate feedback. Also use it for switching guitars as some are hotter than others and I need to adjust. Adds extra gain and volume without coloring. This pedal has so many uses and applications depending where you place it. If you want extra gain and need instant volume access get one, you'll be glad you did.

        (1 of 3 customers found this review helpful)

         
        5.0

        Good Boost Pedal

        By Bushrat

        from Cajun Country

        About Me Experienced

        Pros

        • Does not color sound
        • Solid Design

        Cons

          Best Uses

          • Performances

          Comments about MXR M-133 Micro Amp Pedal:

          Simple design that does exactly what it's supposed to do. Does not change your sound one bit. It acts just like a volume pedal in that it just raises the volume with no distortion at all. Perfect for making your lead stand out. Very solid. Not too big. Nice pedal.

          (0 of 1 customers found this review helpful)

           
          5.0

          Great Pedal

          By Angel

          from Huntley, IL

          About Me Experienced

          Pros

          • Excellent Sound Quality
          • Rugged

          Cons

          • None

          Best Uses

          • Events
          • Performances

          Comments about MXR M-133 Micro Amp Pedal:

          Everything it is advertised to do it does. I use it to boost my bass guitar through a pedal chain. Quiet, no distortion boost.

          (1 of 1 customers found this review helpful)

           
          5.0

          Great For Acoustic Guitar Too!

          By takaman

          from Wilmington, NC

          About Me Professional Musician

          Pros

          • Excellent Sound Quality
          • Responsive

          Cons

            Best Uses

              Comments about MXR M-133 Micro Amp Pedal:

              I play acoustic guitar/sing solo. I use a looper so when it's time to take a lead, this little device kicks in its clean boost to make my licks shine over my rhythm pattern. Works great, good quality, sound so nice, keeps my acoustic tone clean, just louder. I've had it about a year, no problems. I suggest you get one!

               
              5.0

              Good pedal. Does what it's supposed to.

              By Steveo814

              from Ebensburg, Pa.

              About Me Experienced

              Verified Buyer

              Pros

              • Compact Design
              • Excellent Sound Quality
              • Responsive

              Cons

              • Limited Selection Of Effects

              Best Uses

              • Amateur Recording
              • Events
              • Home Studio
              • Performances
              • Professional Recording

              Comments about MXR M-133 Micro Amp Pedal:

              Great pedal to give you a instant volume boost for leads and chorus without changing your current sound.

              (1 of 1 customers found this review helpful)

               
              5.0

              nice & simple

              By Chalie

              from Aquashicola PA

              About Me Experienced

              Verified Buyer

              Pros

              • Compact
              • Compact Design
              • Excellent Sound Quality
              • Responsive

              Cons

              • None

              Best Uses

              • Performances
              • Powerful

              Comments about MXR M-133 Micro Amp Pedal:

              I'm actually using this for an upright bass. The signal isn't strong enough without it. It gives a nice clean sound.

              (2 of 2 customers found this review helpful)

               
              5.0

              CLEAN boost

              By Toomanyguitars

              from Long Island,New York

              About Me Experienced

              Pros

              • Compact Design
              • Excellent Sound Quality
              • Responsive

              Cons

                Best Uses

                • Events
                • Home Studio
                • Performances
                • Professional Recording

                Comments about MXR M-133 Micro Amp Pedal:

                This little pedal is great if you want a clean boost.If your already running a gain pedal and you want a "boost" for your upcoming guitar solo that won't send your guitar into feedback-this is the ticket.This pedal works best at the end of your signal chain right before your delay pedal.A simple one knob circuit yes-but it works.

                (1 of 1 customers found this review helpful)

                 
                5.0

                Good, transparent boost

                By BlueTuxedoStrat

                from Lexington, SC

                About Me Experienced

                Pros

                • Compact Design
                • Excellent Sound Quality
                • Responsive

                Cons

                  Best Uses

                  • Amateur Recording
                  • Events
                  • Home Studio
                  • Performances
                  • Professional Recording

                  Comments about MXR M-133 Micro Amp Pedal:

                  This pedal does exactly what it's advertised to do. Unity gain with the control all the way down; tons of boost with it all the way up. Great for pushing the front end of a tube amp. It can do everything from a good clean jump in volume for leads to full-out overdriving the front end of your amp. No effect on my tone, just more volume. Compared to other boosts out there, it's a great effect at a great price. Highly recommended!

                   
                  5.0

                  Works well on bass, too

                  By Stuart Holme

                  from Charlottesville, VA

                  Comments about MXR M-133 Micro Amp Pedal:

                  Very close to completely transparent, adds perhaps a touch of thickness in the mids, the highs are too close to call, but really good at "the same thing only louder". For the price it's hard to beat. Cleaner than the xotic EP boost when you run that at 9 volts, the MXR itself sounds great at 9 volts. I play active bass, so my signal is buffered, and I get tons of gain in front of my amp, have not even had to try it in the FX loop.

                  Displaying reviews 1-10

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