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MXR Custom Audio Electronics MC-401 Boost Pedal  

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MXR joined forces with Custom Audio Electronics founder Bob Bradshaw to bring you the MC-401 Boost Pedal. Cleans up nicely when you roll back your gu...Read More

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OVERVIEW

Get the unique sonic stamp of legendary designer Bob Bradshaw.

MXR joined forces with Custom Audio Electronics founder Bob Bradshaw to bring you the MC-401 Boost Pedal. Cleans up nicely when you roll back your guitar volume, making it extremely responsive to picking dynamics without thinning your tone. High-quality components provide quiet operation and trouble-free interaction with other pedals on your board.

Custom Audio Electronics has made limited quantities of pedals for select clientele since 1980 and has now teamed up with MXR to bring these pedals to the masses.


Coming from 2 names that have shaped the tones of the world's greatest guitarists, you know it's gonna be good. Order now!

Reviews
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Review Snapshot®

by PowerReviews
MXRCustom Audio Electronics MC-401 Boost Pedal
 
4.5

(based on 21 reviews)

Ratings Distribution

  • 5 Stars

     

    (14)

  • 4 Stars

     

    (4)

  • 3 Stars

     

    (2)

  • 2 Stars

     

    (1)

  • 1 Stars

     

    (0)

Most Liked Positive Review

 

MC-401

Great for volume boost, it doesn't dirty up your tone at all like when using a distortion pedal on top of another. Just clean more volume thats all there is to it.Read complete review

Great for volume boost, it doesn't dirty up your tone at all like when using a distortion pedal on top of another. Just clean more volume thats all there is to it.
Simple one knob operation. Simply turn clockwise for more volume. Bright blue LED to tell its on, great for outdoor shows when the sun shines and you can't see your pedal lights.
Rugged metal construction built to last a life time like all MXR's pedals

VS

Most Liked Negative Review

 

Sounds good, but has reliability issues

See above regarding build issues. A pedal at this price should last longer than 3 years.
Rather straight forward on the features here- Battery or A/C power, blue LED,...Read complete review

See above regarding build issues. A pedal at this price should last longer than 3 years.
Rather straight forward on the features here- Battery or A/C power, blue LED, compact, on/off swich, one knob. Kudos for features. Keep reading...
Heads up!

Quality is the reason I am writing this review. I've been using this Boost pedal an average of once per week for over 3 years. I play in a gigging rock band. Although itl excels at its primary job of providing a solid clean boost, the on/off swtich has proven unreliable. It's begun to cut out momentarily while engaged. From what I've read, this is due to somewhat a poor engineering design where the on/off switch is directly hardwired to the PCB circuit board inside. In essence, each time you engage the on/off switch you're slowly but surely flexing the internal circuit board. Take it from this long time user- it has a bad effect on reliability before too long. They don't make 'em like they used to. Have you noticed yet how Dunlop is also cheapening their MXR pedals with a more lightweight case that flips and flops like a fish on the floor when you instrument cable gently tugs at it? I sense that we're becoming the victims of some cost cutting measures.

I'd suggest you look elsewhere for a better built boost pedal.
See above regarding build issues.

Reviewed by 21 customers

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Displaying reviews 1-10

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2.0

Loud click, stiff button

By SAVFIDDLER

from Savannah, GA

Pros

  • Compact Design
  • Excellent Sound Quality

Cons

    Best Uses

      Comments about MXR Custom Audio Electronics MC-401 Boost Pedal:

      I wanted to love this, and I probably would have if not for one simple issue that made it unusable for me. The button is quite stiff, actually hard to press, and makes a very loud clicking sound. The click itself would be audible during a quieter song in a listening room setting. Not only that, but the click also seems to be coming through the sound system, which, obviously, is unacceptable for my purposes (I'm a fiddle player in an acoustic band). I have another MXR pedal (carbon copy analog delay), which appears to have the same button mechanism, but I don't have this problem at all with this pedal. Maybe I just got a lemon? Had to send it back. Still on the hunt for a clean boost for my purposes.

      Comment on this review

       
      5.0

      Amazing Boost!

      By Bradley

      from Charlotte, NC

      About Me Experienced

      Ask me a question

      Pros

      • Compact Design
      • Excellent Sound Quality
      • Perfect Led Light
      • Responsive
      • Sturdy

      Cons

        Best Uses

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

        Comments about MXR Custom Audio Electronics MC-401 Boost Pedal:

        I love this boost pedal so much! I owned the MXR Micro Amp for a while, but I found that it colored my tone way too much (too much low end). The MC401 on the other hand doesn't color your tone at all. It provides a very precise boost that pushes your tube amp into natural overdrive. The boost is extremely articulate and produces throbbing palm muting and clear chords. If you're in the market for a boost or a buffer, I'd look no further. This pedal is affordable, sturdy, and sounds absolutely amazing!

        Comment on this review

        (1 of 1 customers found this review helpful)

         
        5.0

        My new best friend.

        Comments about MXR Custom Audio Electronics MC-401 Boost Pedal:

        Pushes the amp to that great Warren Haynes/ Bonamassa tone
        I love this box!!! It breathed a sparkling new life into my sound!!! Thanks Bob!! It's just what this tone addict was looking for...Some advice to you people, if you are using an OD for a boost, you're missing something special here...
        Built for business!!
        It's worth its weight in gold...

        Comment on this review

        (1 of 5 customers found this review helpful)

         
        4.0

        Line Boost

        By Eddie weiner

        from Pennsylvania

        Comments about MXR Custom Audio Electronics MC-401 Boost Pedal:

        To get the 20 decibels of boost you need to have the right amp.
        I play out regularly and the features don't help me unless I run in the clean channel. My amp is a JCM 800 2203 and the pedal does not make a difference in the high sensitivity channel. It works great in the low sensitivity but my sound is not nearly the same. I tried using a Zakk Wylde Overdrive to get a heavier sound for a while and I am unhappy with the sound. Maybe I will try a better OD but I think I will sell the pedal and buy a volume pedal because the sound in the high channel is amazing.
        Great qualityFinish does not chip easilyDid not break
        Have to have the right amp to get the whole effect.

        Comment on this review

        (2 of 2 customers found this review helpful)

         
        5.0

        MC-401

        By Brad VanDerPol

        from Undisclosed

        Comments about MXR Custom Audio Electronics MC-401 Boost Pedal:

        Great for volume boost, it doesn't dirty up your tone at all like when using a distortion pedal on top of another. Just clean more volume thats all there is to it.
        Simple one knob operation. Simply turn clockwise for more volume. Bright blue LED to tell its on, great for outdoor shows when the sun shines and you can't see your pedal lights.
        Rugged metal construction built to last a life time like all MXR's pedals

        Comment on this review

        (11 of 11 customers found this review helpful)

         
        3.0

        Sounds good, but has reliability issues

        By Steve-KnLBu

        from Massachusetts

        Comments about MXR Custom Audio Electronics MC-401 Boost Pedal:

        See above regarding build issues. A pedal at this price should last longer than 3 years.
        Rather straight forward on the features here- Battery or A/C power, blue LED, compact, on/off swich, one knob. Kudos for features. Keep reading...
        Heads up!

        Quality is the reason I am writing this review. I've been using this Boost pedal an average of once per week for over 3 years. I play in a gigging rock band. Although itl excels at its primary job of providing a solid clean boost, the on/off swtich has proven unreliable. It's begun to cut out momentarily while engaged. From what I've read, this is due to somewhat a poor engineering design where the on/off switch is directly hardwired to the PCB circuit board inside. In essence, each time you engage the on/off switch you're slowly but surely flexing the internal circuit board. Take it from this long time user- it has a bad effect on reliability before too long. They don't make 'em like they used to. Have you noticed yet how Dunlop is also cheapening their MXR pedals with a more lightweight case that flips and flops like a fish on the floor when you instrument cable gently tugs at it? I sense that we're becoming the victims of some cost cutting measures.

        I'd suggest you look elsewhere for a better built boost pedal.
        See above regarding build issues.

        Comment on this review

         
        4.0

        Nice boost

        Comments about MXR Custom Audio Electronics MC-401 Boost Pedal:

        I put this pedal throught the paces, and it works as good as expected.It works a lot better on my clean settings than with distortion, but works well enough to get that extra boost when needed to cut through the band.I think it is a worthwhile inventment, and it does look cool also with that blue LEd light shining on the pedal board.

        Comment on this review

        (6 of 8 customers found this review helpful)

         
        3.0

        Good boost when it works

        By aenneking

        from Indianapolis, Indiana

        Comments about MXR Custom Audio Electronics MC-401 Boost Pedal:

        I received this a year ago and was excited to use it...it looks cool, sounds pretty good and doesn't seem to really color the tone.50 to 100 shows later and it's broken at least five times. The switch, as well as jacks, are mounted to the circuit board so every time you step on it, you're putting pressure on the circuit board. Mine has died or cut out so many times it's ridiculous. Last weekend my band played the Vogue in Indianapolis and the pedal started cutting the signal out (even when off) after having been fixed numerous times. I've owned almost 60 pedals and currently use about 15 and NONE of them have ever had this problem.

        Comment on this review

        (1 of 1 customers found this review helpful)

         
        5.0

        Love this pedal

        Comments about MXR Custom Audio Electronics MC-401 Boost Pedal:

        Great boost pedal I'm using it as the last pedal in the chain on my pedalboard. It doesn't change the tone of the sounds I have dialed up - it just makes them louder. Great transparent sound - perfect for boosting the volume of a lead break. If I were going to improve anything it would be the on / off switch - it's a little stiff for my liking and it makes a loud click - not in the audio path - but an actual, physical clicking of the switch. For a rock band it's no issue at all, but I suppose it could be for a low volume acoustic dinner set. Anyway, it's very minor and doesn't affect the job I need it for in any way. I love it and highly recommend it.

        Comment on this review

        (2 of 3 customers found this review helpful)

         
        5.0

        Straight cutting boost

        By DentonGHosT

        from Denton, TX

        Comments about MXR Custom Audio Electronics MC-401 Boost Pedal:

        This pedal is essential for those playing with a band who need a little extra clarity when it's time to step out front. For the guitarist who plays with the band and for the entire song, you generally want your volume even in the mix so the audience is hearing the entire song, but when it's time to step out for a solo, you don't want your tone to change, you just want to come up a bit and this pedal does just that - nothing extra, no messing with the sound you spend hours in the practice room creating, just a straight punch in volume. At up to +20dB, there's no style I can think of that this wouldn't work for. The true bypass is no lie - when it's not on it might as well not even be in the chain - absolutely quiet. When it is on, you just come out of nowhere. For gigging musicians: you could probably hammer a stage together with this thing and it wouldn't make a dent - it's one of the toughest pedals I own. I've played a few boosts, but this is the one that really is straight up exactly what you need to step up.

        Comment on this review

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