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Marshall MG4 Series MG100HFX, MG412A and MG412B Full Stack

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Get the Marshall MG100HFX amplifier head and 2 MG412 speaker cabs together now in one killer stack. This setup gives you that all-out Marshall tone and power that your sound has been waiting for.MG100... Click To Read More About This Product

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Get the Marshall MG100HFX amplifier head and 2 MG412 speaker cabs together now in one killer stack. This setup gives you that all-out Marshall tone and power that your sound has been waiting for.

MG100HFX Amplifier Head

The MG100HFX amp head packs full analog tone circuits, for distinctive Marshall-quality amplifier tone and pure organic flexibility. Using digitally controlled analog functions, the MG100HFX head also delivers precise control and superb flexibility without masking your guitar's own sound or making your tone sound processed and artificial.

The Marshall MG100HFX amp also features a frequency-dependent damping circuit. This circuit ensures that the sound reproduces the same interaction between amplifier and speaker that occurs in professional valve amplification, making the amplifier sound and feel alive.

Marshall includes a 2-button footswitch, but with a Stompware 4-button footcontroller (not included), you can easily store and recall your favorite settings, playing seamlessly through your music in true professional style.

MG412 Cabinet:

The 120W Marshall MG412 speaker cabs come loaded with 4 x 12" custom-voiced Marshall/Celestion speakers that really crank out that authentic Marshall tone. They're designed for maximum road-readiness with reinforced corners and both recessed and side bar handles. This awesome Marshall stack ncludes one straight and one angled cabinet.


MG100HFX Amp Head:
  • Power: 100W RMS
  • Channels: 4
  • Stompware footswitchable (not included)
  • EQ: 3-stage
  • Damping: FDD onboard and additional 2-way selector
  • Custom Effects: Reverb, chorus, phaser, flanger, delay
  • Emulated MP3/Line in
  • Emulated Headphones Out
  • Effects Loop
  • Dimensions: 23-3/10" W x 9-4/5" H x 10-4/5" D
  • Weight: 25 lb.
MG412 Cabinets:
  • 4 x 12" custom-voiced Marshall/Celestion speakers
  • 8 ohms
  • 120W power handling
  • 26-1/2" W x 26-1/4" H x 14" D
Pro Coverage
Manufacturer's Warranty
5 year parts/ 3 year labor warranty.

Customer Reviews

Review Snapshot

by PowerReviews
MarshallMG4 Series MG100HFX, MG412A and MG412B Full Stack

(based on 5 reviews)

Ratings Distribution

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Reviewed by 5 customers

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(44 of 167 customers found this review helpful)


okay amp for the price

By guitarman 200

from annapolis, MD

Comments about Marshall MG4 Series MG100HFX, MG412A and MG412B Full Stack:

okay this amp blows and can not pull off what you need to play live or to just learn or fool off. This amp is nothing like what they claim it is. Its like a amp made by very dumb caveman it is small compared to a LINE 6 or a VOX. This amp sounds like it came from a junkyard the clean channel is fine or okay but all the other effects blow. Every time i use it i feel like the speakers are going to blow. If you are going to buy a marshall buy a much more expence one or just dont buy a marshall MG series buy a LINE 6 cause they last and there just amazing

(16 of 24 customers found this review helpful)


Not for the serious player

By Andy

from Scranton, PA

Comments about Marshall MG4 Series MG100HFX, MG412A and MG412B Full Stack:

I bought this rig last year because I had a gig coming up in a few days and my little combo amp wasn't gonna be good enough. I didn't have lots of money and this ended up being what I bought mostly because it's cheap. I've now used it for a year and I'm going to trade it in as soon as I find a better amp I can afford. The tone from this amp is not very good. After countless hours of messing with it, trying to get something halfway decent out of it, I finally gave up. I now play it only on the clean channel with a pedal board to shape tone and it's still not really everything I'd like out of an amp. The tone is just kind of "murky" and not at all crisp. Sounds bassey and flat no matter what settings you use either on the amp or the pedals and an EQ. I guess if you just want volume and don't care about sound quality this is the amp for you? I just bought a used Peavey 6505 4x12 cab on ebay to replace these lifeless speakers with until such time as I can afford either a 6505+, Line 6/Bogner MkII, or Mesa Recti head as well.

(6 of 9 customers found this review helpful)


Please read this before you buy the MG series marshall full stack..

By Darren

from hampton, Va

Comments about Marshall MG4 Series MG100HFX, MG412A and MG412B Full Stack:

I spent about 830$ on this stack, and it has turned out to be a good deal for the cabs. The head is'nt very good so i've had to run it as a power amp instead of a pre-amp. I bought the pod 2.0 to compensate, and this amp now has a kick and sound i was looking for. There isnt another head out their that will compensate unless your rich and can pay for 50 tubes on a regular basis so i recommend you run your pod or amp model pedal into the send or return port in the back of the head and by pass the marshall EQ. It sounds amazing with the Line 6 pod 2.0, so thats what my band is doing and it has not failed us a single show. Now for us guitars looking for that perfect tone out their, a guitar rack is the way to go, but it cost quite a pretty penny for that setup...

(1 of 1 customers found this review helpful)


straight talk on this amp.

By Alex

from Greenville, IL

Comments about Marshall MG4 Series MG100HFX, MG412A and MG412B Full Stack:

Here's the deal. This amp is not what they necissarily claim it is, but its not horrible either. This isn't a tube amp nor does it really sound like one. It doesn't have that "Marshall Sound" everyone talks about, and its not comparable to any of their tube amps. There are good things about this amp however. For a solid state amp, it really doesn't sound that bad, its just that people get stuck comparing it to marshal's other stuff. The distortion on the amp is miserable, but I run a Jekyll and Hyde distortion in front of it, and that actually sounds pretty decent. This amp is very, very loud if that's what you're looking for. As far as solid state amps go, the clean isn't horrible either. Overall though, my recomendation is that if you have enough money for this, you are way better off buying a tube combo amp, and just use a mic through a sound system if you need more volume. Honestly, most people looking at this amp really don't need as much volume as it can provide.

(0 of 1 customers found this review helpful)



By Devin

from Seattle, Wa

Comments about Marshall MG4 Series MG100HFX, MG412A and MG412B Full Stack:

I have read the other review submissions and I do not necessarily agree with there reviews. I have owned this head for about a year. It has been reliable and I have used it effectively when my tube amp malfunctions. It is an excellent back up head and I would use it as a primary head for gigging too. Is it going to be the same as a tube head? NO I use it with a Marshall 1960A cab (there is a significant difference in overall sound) I also use a Bozz Metal Zone in front of the clean channel. When I first owned it I had trouble finding the right tone for what I desired. I spent time with it and have found that I can easily compete with my lead guitar player who plays a Marshall tube head through a 4x12 Laney cab. I love the tones that this amp produces out of each channel. Things to consider are can the operator/owner properly eq his sound. Some people are just not good at this. Also what kind of music are you playing? I play alternative, hard rock, classic and punk. Sound and tone are relative to the player. I can get the tone that I desire without external effects but you may achieve your desired sound naturally by running external effects. This amp is loud, reliable, has built in reverb, chorus, flanger, delay, phaser, dampening. It has 4 channels that you can store your savings. Bottom line is for a solid state amp this is an excellent choice! Do not compare a solid state to a tube amp. They are in two different categories. Friends who have played this set up have said for being a non tube head it is surprisingly impressive! Try one for yourself, bring your fx and experiment and form your own opinion.

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