Marshall MG4 Series MG101FX 100W 1x12 Guitar Combo Amp Black 886830161582

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The 1x12 Marshall MG101FX is a 100W combo amp with 4 programmable channels, awesome analog tone, adjustable FX, and more amazing features. Now at your disposal is a separate digital Delay, meaning tha... Click To Read More About This Product

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The 1x12 Marshall MG101FX is a 100W combo amp with 4 programmable channels, awesome analog tone, adjustable FX, and more amazing features. Now at your disposal is a separate digital Delay, meaning that a total of 3 custom-voiced FX can be combined at once—Reverb, Modulation (Chorus/Phaser/Flanger), and Delay—creating near-endless FX possibilities. What's more, the Reverb and Delay FX decay naturally when switching between channels for a truly fluid performance. If you want to add extra pedals and/or rack effects, you can make use of the amp's switchable External FX.

Set in series and at instrument level, this send and return system is suitable for both guitar and professional units alike. Also present in the MG101FX amp is Marshall's custom power-amp damping circuitry. Switch effortlessly between the feel of a classic power amp, with the emphasis on middle, and that of boosted speaker resonance in both bass and treble frequency ranges, magnifying the response and projection of your tone. All the above are switchable via the front panel and/or the included programmable MG Footcontroller, affording you complete control.

You'll also find that the Headphone socket on this top-tier Marshall MG doubles as a very handy Line Out, ideal for sending your jaw-dropping solos to any external unit you wish—a computer, digital recorder, or PA system, for example. As with the use of headphones, the amp's speaker is muted, allowing for silent recording. Output can then be directly monitored from the external equipment being used.

  • 100W
  • 1 x 12" speaker
  • 4 programmable channels
  • Adjustable FX
  • Separate digital Delay
  • External FX
  • Custom power-amp damping circuitry
5 year parts/ 3 year labor warranty.

  • Customer Reviews

Review Snapshot

by PowerReviews

(based on 19 reviews)

Ratings Distribution

  • 5 Stars



  • 4 Stars



  • 3 Stars



  • 2 Stars



  • 1 Stars



Most Liked Positive Review


Dr. J

I have an original MG30. I've always liked this amp and wished I had gotten a more powerful one. I didn't want to spend the money on a tube Marshall but I like the...Read complete review

I have an original MG30. I've always liked this amp and wished I had gotten a more powerful one. I didn't want to spend the money on a tube Marshall but I like the Marshall sound. I gig out with a 1987 Carvin XB100 100 watt head through cabinets with Celestion and Eminence Texas Heat speakers. I don't want to haul this rig to rehearsal, so I took the MG30. When really cranked, it sounded great. I got a good deal here on a MG100DFX and bought it. I've had it almost two weeks now and am finally starting to like it after experimenting. If you are looking for that Marshall sound, this is it. I will caution you though, this amp is for playing with that sound, it's not a versatile amp if you are playing an array of different music. I prefer an Allman Bros./Led Zeppelin type Marshall sound myself which can be achieved by turning the gain on about two and turning the master volume up. I don't really like the clean channel as there is a big volume drop off. I really don't like the stock speaker. I was disappointed that there was no external speaker jack. I solved this by rigging up a speaker junction box. Adding two Texas Heat speakers, the sound was vastly improved. I think the amp has a lot of treble to it and even my Celestions sounded tinny. I use a '72 Les Paul Custom, a '74 Gibson L6S and a '62 reproduction Strat. With the Strat, I pretty much turn the bass up and the treble down. I didn't like the effects loop, I lost a lot of boost. My pedal board worked much better running it through the input jack. The onboard effects are decent although I'm not a flange guy. Plenty of power though. If you want Marshall sound on the cheap, this is it. I would recommend definitely using different speakers with it. Maybe just buy the head if you have cabinets.


Most Liked Negative Review


Not worth the money

I purchased this amp looking for something with a little more power than my old and small line 6 amp. This was on sale and I believed it would be a better bargain. Then...Read complete review

I purchased this amp looking for something with a little more power than my old and small line 6 amp. This was on sale and I believed it would be a better bargain. Then I was more naive as a musician and made a poor choice, but after having this amp for a while, it's overall decent but the dirty channels are very weak and sometimes it doesn't cut through other instruments very well. I always use a distortion pedal to get my tone and even with that the amp still doesn't cut through very well. The Fender Frontman I had also considered buying would've been a much wiser choice. It's less expensive, and has an overall better tone.

Reviewed by 19 customers

Displaying reviews 1-10

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MG101fx, but 50 watt version

By Walter Perez

from College Park, MD

This amp is amazing! I switched a Line 6 Spider IV for this amp and at first I thought that it was a waste of a Line 6. After a while, I began messing with the settings and actually got a pretty good sound that I can compare to a classic Metallica tone. I use a Jackson DKXT and now I feel that this amp is very good for both gigging and playing at home, but it does need to be turned up quite a bit in order to get the full sound of the amp.

(1 of 1 customers found this review helpful)



By Firebird

from Taft, CA

About Me Experienced


  • Amazing Effects
  • Easy To Use
  • Excellent Sound
  • Good Warmth
  • Portable
  • Powerful


    Best Uses

    • Amateur Recording
    • anything
    • Events
    • Home Studio
    • Live Rock Concerts
    • Mobile DJ
    • Performances
    • Practice
    • Professional Recording

    This amp has everything you could ever wish for. It has an excellent reverb, great delay, and an awesome fx loop. It gives you the choice to store your effects on four seperate channels, or you can switch it to manuel (like I did), and you can always reset it to factory presets if you screw it up!
    I ran my Dean and my Fender into this baby, and I was in heaven! I'm not trying to sound like a promotion ad, but this amp just gets better and better the more I use it. I can use the clean channel with some minor chorusing and delay for a gorgeous clean sparkle, or I can switch over to crunch for a bit more growl. The lead channels are great for rock leads from Journey to Metallica and everything in between.
    When I first got it, I tweaked it for a good lead sound and played Cliffs of Dover, and the tone sounded perfect! If you are considering buying this thing, don't wait for something else to distract you, buy this thing, NOW!!!

    (3 of 3 customers found this review helpful)


    Monster amp

    By X-man-HPYkS

    from California

    This amp truly fulfills a gigging musicians needs. It provides a great clean and crunch channel, two great overdrive channels, a footswitch which can switch between all 4 channels and a truly great sound. I bought this amp to replace a single channel am to give me a variety of sounds and it is proving to be a great buy. Marshall also provide a 3 year warranty which can't be bad.
    This is laden with so many features. 4 channels, separate reverb and delay, 3 effects which can be assigned individually to each channel, full programmability for each channel, damping siwtch which changes the character of the amp from classic to modern, an effects loop and a great sound to boot. Each channel can be programmed and saved easily. There is also the availabilty of a preset mode where the sounds are predefined by Marshall. It takes a little time to really get to know the amp but it really isn't rocket science. Moreover the sounds produced are superb and this amp is loud with a capital 'L'.
    The amp looks and feels like a real Marshall. Having owned a JCM 900 1x12 this stands up nicely to that amp. Relatively small, very nice vinyl covering great quality dials and not too heavy. Comes with a stock fot pedal to change channels which also is nice and sturdy.
    I bought this amp as a 'stupid deal of the day' price and have not looked back. The price makes this amp the bargain of the decade. I bought this amp on a whim because of the truly great price and I am truly amazed. The sounds just on channel 1 are worth the money alone. Nice clean channel with an organic quality. Great great crunch channel which sounds just like any valve Marshall. Then you have 2 more channels and a host of effects to play with. Nothing short of fabulous.

    (2 of 3 customers found this review helpful)


    Superb Amp!

    By Pablo Nyarady

    from Western MA

    I would gladly buy it all over again!
    The Pedal makes it even more awesome.
    Its built beautifully, no short cuts!
    After plugging in and jammin' 3 cords, my son's first words were... I could do this all day! - We also have a VOX VT40 (love that Amp too), but this amp Cranks... The pedal that comes with it is icing on the cake! Don't even think twice, buy it, its awesome! - Incredible value at the price.

    (1 of 1 customers found this review helpful)


    Amazing Amp - Amazing Service!

    By Michael Sole

    from NJ

    Overall this amp is loud, friendly and really flexible. Its perfect for any guitar player looking for that authentic marshall sound without paying the super high price.
    It sounds great and has a ton of tonal combinations:
    Clean, Cruch and 2 overdrives.

    EQ, reverb, delay and choice amongst: chorus, flanger and phaser effects.

    It also has fx out and you can hook it up to a speaker cab.

    Presets and more!
    What can I say its a Marshall!

    It did come with a chip on the cab but I called customer service and within 5 minutes they totally took care of everything!
    Normally this was a great deal at $479 but I got it at a stupid deal price at $249, best purchase I've made on musical equipment yet!

    (3 of 3 customers found this review helpful)


    Great Amp

    By MyLifeInFlames666

    from Virginia

    What can I say Marshall has done it again. This is why all famous musicians use marshall there sound quality and volume is amazing.
    I got this on the stupid deal of the day. That deal wasn't stupid at all. It was the best decision I've ever made! The amp is very loud. At just level 3 it is very loud. The sound quality is amazing and it can handle a lot of damage. This amp is perfect for just practicing at home or even playing a 500 person gig. This amp is perfect for almost any genre. I've seen that it gives a very nice heavy metal sound and a nice blues noise but with out a doubt the sound is very clear and precise for any genre.
    Top notch sound quality, Top notch volume, this is a great amp. And the sound is also amazing with the headphones in.
    This is a very good price for this amp. Every penny is worth it. This amp will last you YEARS to come. I treat my amps very poorly and almost all my amps are destroyed within a year but this amp has held on very well. Not even a ding on the body. The noise is also impecable and worth every penny.

    (1 of 1 customers found this review helpful)


    Outstanding Amp!

    By Cynthia Popenhagen

    from Southeast US

    I have had a Marshall in the past, and ever since then I have kicked myself in the backside for getting rid of it. Now that I have another one, I will never go back! The sound, the quality, there is no other amp on the market that can touch a Marshall.
    The features on this amp are the best! I haven't purchased a new amp in almost 15 years, and compared to the amps of the past, this one is amazing! I love having the effects built right in. But the one thing that is the most amazing is the Marshall sound. There is no equal!
    It's a Marshall. Need I say more?
    For the price, there is no equal. This thing rocks!

    (4 of 4 customers found this review helpful)


    Big Amp

    By Jesse Turney

    from United States

    Overall this is a great amp. I live in a place where I must respect other people not want to listen to loud music, but this amp is very loud. I turn it up.......barely..........and it's fine. I could do a show with this thing and be plenty loud enough.
    This amp is bigger than I expected, but it is also an awesome Marshall!

    (3 of 3 customers found this review helpful)


    Great deal.

    By Ryan Le Fevre

    from Undisclosed

    The amp is great, loud, clear and has plenty off effects. The programmable footswitch is very cool, dampening and storing works just as intended. I have several distortion pedals, the distortion you get from the amp is comparatively just as good. Sure the pedals get more harmonic tones and deep crunch, but you also get buzz from the pedal itself if its turned up. The distortion off the amp has almost the same crunch, slightly less harmonic tones, but not anywhere near the buzz. You hear the speaker breathing, that's about it. Great deal on a great amp.

    (7 of 7 customers found this review helpful)


    Famed Marshall Quality

    By Robert Schafer

    from Columbia, MO

    Overall, I am happy with my purchase. I wasn't looking for a top of the line amplifier but wanted the features and great sound of a more expenzive stack. I have been able to play around with it a bit and you can get a bunch of different sounds out of it. Quality amp, really fast shipping, happy customer.
    For a combo amp, it packs some decent features. The built in effects work well and sound good. Included foot controller works as expected; just switches between channels.
    Time will tell, but as far as I'm concerned at the moment, it has classic Marshall styling and seems to be very well constructed. It is heavy and sturdy so you don't have to worry about it getting damaged unless you drop it down a flight of stairs or kick it.
    It is no secret that Marshall amps are sold at a premium, but I believe that you also get a premium product from a company that has stood the test of time. It can hold it's own versus any amp in the price range. Built into the value, as well, is Marshall's 5 year component warranty (3 years on the speaker).

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