Marshall JVM 410H

Here, just look to what the others have said ! It's always the same.
I'll just say that this amp has four channels, maybe to much for me. I really appreciate the 2 "master volume" knobs. Just hit the footswitch and your sound "jumps" out of the mix for solo ! Great !
2 reliable serial/parallel loops. Great to set some fx on one side and, for example, an independant and permanent noise gate on the other side.
The manual is complete and instructive, really easy to understand. But, in fact, this amp is really simple. In 2 minutes, everything is understood. Absolute "plug and play" ! Hey, it's a Marshall ! So, rock it !

First of all my set up.
I mostly play live on several stratocasters (Fender and "homemade" strats - all with "texas specials"), but I also own a quite good Fender Telecaster, and a Les Paul (for studio applications)
So: guitar > wireless > JVM 410H preamp > (loop) Korg tuner > Lexicon MPX 100 (mod fx) > Boss ME 50 (wah - volume - mod fx) > TC G-sharp (delays) > JVM 410H power stage (reverb) > 4 x 12 Peavey loaded with Celestion Vintage 30

The clean channel is veeeeeery clean (green)! Waaaaah ! Real "Fender" sound (I've got a '64 Tremolux - same global characteristics). The "orange" and "red" mode could sound "clean" too, but with more mediums and crunch.
This amp is reallly one of the cleanest I've played. I've had a DSL 401, then a TSL 601... And there's nothing to compare. JVM 410H could be a really clean amp, with a punchy, "explosive", sparkling clean sound... Hit the Strat with a "7th bare chord" around case 5 ou 7... "Djiiiinnnnnnng"... So good !

Crunch channel is usefull in "green" or "orange" to get several kind of crunch. Please remember that your guitar as a volume pot ! (I put the gain on 10, and get everything in between with the guitar volume pot) You could get everything for decent "Mashall clean" to a muddy crunch... The "red" channel is the same that the "green" OD 1 but with some subbtle differences, maybe.

I play OD 1 in "green" position only (gain: 10). This drive level is enough for me (I play everything that rocks, from blues to "post-grunge"... ). Imagine what I could do with the "orange" or "red" levels...

OD 2 is voiced like some MESA amps (medium centered to 500 Hz instead of 650 Hz for a more "Marshall" sound). This makes the difference, but I don't like these "chain saw" sounds, so I've voiced it to set to my Telecaster, and I control the gain with the volume pot ("green" mode - gain set to 10)

Presence and resonnance pots are very effective, as for the preamp pots of every channel. A small move of medium, for example, really changes the sound. (Just like on my Fender Tremolux... my Marshall TSL 601 or my Peavey Classic 30 are NOT so effective !!! what a difference...)

This amp preserves the harmonics, the sound and "color" of your guitar and you can still hear every string of a chord, even with OD.

More: I also plug an acoustic guitar (Yamaha APX 7) in the front input of my Korg racktuner, bypassing, in fact, the preamp section of the amp. The sound is very good, very natural at low or middle volumes (just take care of feedback !). I control the overall volume, and the sound, with the preamp section of the acoustic guitar.

After 18 mounth, it's my... second footswitch ! Customer support is SLOW. So I've bought a 3th as an emergency replacement part ! The first broke on stage... ooops !

Well... I live in Belgium... and I've had some problems with other Marshall amps in the past (DSL 401 - just a piece of crap !!!). Customer support is effective, but too slow ! 4 weeks to get to get a new switch for my broken JVM 410H footswitch in unacceptable !

I bought my first guitar 28 years ago. I've played on many amps, I still have 5 amps at home, playing them alternatively. Sound is a matter of taste. But I've understood 2 or 3 things about guitar playing.
First: "your" sound comes from your fingers, at 80 percents maybe ! The amp is a part of your sound, but not the main part ! Of course, you'll tell me about guitars, pickups, amps, speakers, cables and so on... Yes, but, for example, a guy like Jeff Beck always sounds like Jeff Beck, whatever he plays on ! "Your" sound is in your fingers !
Second: every guitar fits to "it's" amp. Just try to find the exact combination. For example, my Les Paul sounds the best on my Tremolux '64, my Telecaster seems have been "made for" my Peavey Classic 30. I've got a "Classic '60 Strat", always at it's best with my TSL 601. Why ? I don't know... But it's a fact !

The JVM 410H is a very goog amp. Loud, versatile, with good low end, wonderfull clean sound, low price, easy to use, etc... It fits well with a lot of (my) guitars, it's reliable. Sounds like a Marshall, old or new, yes, but it could also sound like a Fender or a MESA...
It's definitely my best amp, I like it and I'll replace it immediatly if it was stolen. I've found, with this amp, what I was looking for since a lot of years ! Just try it...

4 Channels, 12 Settings, an active loop and a passive loop. A million combinations of tone. 2 masters, EQ per channel, built in reverb, one effects loop is assignable and midi controllable. 100 Watts EL-34 tubes.

Here is where I have to jump in. I have read several reviews of people slamming this amp in the tone. All that means to me is that you can't set the amp correctly or you have really crappy gear. A great amp cannot accommodate for a really crappy guitar. The amp is only part of your tone. You also have speakers and guitar and pickups. All play a vital role.

My rig
5 Peavey EVH Wolfgangs, 1 84 Kramer Pacer with KK EMG's, 1 Fender Heavy Metal, 1 Fender Strat with Gilmour EMG's.

Rack...Furman, X2 wireless, Rocktron Expression, Pro Rack G

Cab...One Asher Brown custom 4x12, One Marshall 1960 Lead

Floorboard. Boss tuner, EVH Phase, EVH Flange, BBE sonic stomp and rocktron midi controller.
All controlled with a Rocktron midi controller. It controls all amp function and my rack just by stepping on one button. Very cool. Very easy.

Here's the deal. Clean, one of the best. Green, extremely clean, Orange adds warms good breakup, Red gets into Early 800

channel 2...very 800. Pick your tone.

channel 3...Very Very rock and roll. This is where I get my EVH tone.

Channel 4....Molten. Gain, gain, gain. And then more gain. Incredible leads, very heavy for metal.

I play in an 80's rock band. I do bon Jovi, Metallica, Iron Maiden, Cooper, Tesla, Rush, Ozzy. you name it. It covers it all. Here is the trick. I use the OD1 and OD2 mostly, both on orange. The BBE sonic stomp is a miracle. I highly recommend it for any amp. Roll back the Treble. No need to ever go past 12. I can cover any sound from just about any band. I came off of a Mesa Tri Rec. It was junk. One tone, one very bad tone, and then a worse tone. the only way the mesa had gain was with the diodes on and then it sounded like a line 6 pod to me. Everyone in my band hated it. As did I. I bought the Marshall and it sounded good, but I made it sound great. I use my effects in the active loop turned to 12. That lets the sound of the amp shine through. The BBE is on all the time. I had a custom Asher Brown cab made which is very scooped and the Marshall is very midy, together they absolutely will rip your face off. I can go from clean to brutality and everything in between. If you can't find your sound with this amp, granted you have to like EL34's, then there is something wrong with your gear.

I have had no problem. I have read a lot of people having issues with the foot controller, I have never used it. trust me, get a rocktron midi mate. It is much better, alot more presets and a big red LED to let you know what channel you are on, and you can name the channels.

Never called.

I would replace is simply for the versatility. Now there are other great amps. Peters makes a monster amp, but it simply can't cover as much sonic ground as this Marshall.

I bought mine in November 2007 with my original band due to the cutthrough of sounds (my lead singer/guitarist used my Mesa Triple Rec while I shined through with the Marshall with solos and melody parts). I'm currently in a cover band as I've left the original scene. It is a very versatile amp for this purpose and that's why I went with it instead of my Mesa Triple Rec. It has 4 channels with 3 settings on each channel. The reverb is very good and the only thing I would change is having a way of making the footswitch lock onto your settings because if you hit the same channel button twice by accident, it switches between the three settings for the individual channel.

I use this amp with a variety of styles (rock, r&b, funk, etc...cover band stuff). It is a very good amp for versatility and the clean is very clean with the Marshall "gruff" sound. You buy a marshall because you want that high mid sound....simple as that. The distortion is brutal for a tube amp. Obviously, you're not going to match the brutality of a Mesa Triple Rec with Solid State selected but it is awesome for soloing, versatility, and doubling in the studio.

This is where I HATE the Marshall. Now, when I bought this Marshall, I was NOT a fan of Marshall amps but needed something that would complement soloing and doubling and outlining chords around a MESA. They made this amp with plastic knobs (those have survived so far). Currently, I am unable to use this amp and had to switch back to the Mesa due to the effects loop wet/dry switch coming loose and then ultimately the amp not working at all. It is still under warranty so I am sending it in and hope that everything works out. Again....a $1799 amp just sitting and not able to do anything. It is not built like a tank like my Mesa but it has the sound I need. They should have built it with a metal front and without the delicate effects loop button on the back. The only thing that saved me at a gig at first was the line direct out with XLR which we went right to the board with.

We're going to find out about this. I believe there is a 90 day warranty on tubes, and a three year warranty on the amp itself other than tubes. I'll let you know. Of course, if it was built well in the first place, I wouldn't have a problem and wouldn't have to send it to an authorized service center.

If it were stolen, I would claim it under my homeowners policy and but another one if I wanted a Marshall sound. I don't like any of the other Marshall amps but found the JVM 410H to be versatile and basically Marshall's version of a Mesa with the Marshall sound. I just wish it was built to withstand the rigors of the road. It was a great amp for it's versatility and features...just the construction...it's terrible.

I don't know the year this amp was made but I've bought it in 2007. By know most people will know the layout but here we go: 28 knobs (don't let it scare you, I figured this amp out in ten minutes and I'm not the smartest guy around) 4 channels all switchable with each 3 voicings (so in theory you have access to 12 different sounds) , two effect loops, one parallel and one serial, midi control, two masters (GREAT!), each channel with its own digital reverb, line out with speaker simulation, resonance and presence to control the sound going to your speaker cabinets. It's a 100 watt all tube top, so it is loud! It is delivered with a programmable 6 way switch. I am using it with two stock Marshall 300 watt cabinets, but am thinking about switching one for a 100 watt cabinet with greenbacks in it. Anyway I think it is as versatile as the best you can get nowadays so I'll give it a 10 out of 10.

First of all, I am amazed about some of the reviews. People bought this amp and then burn it down because they think the sound quality is crappy, don't people testdrive equipment anymore these days? Of course this amplifier won't suit everybodies needs, it is a Marshall. If your not looking for Marshall sounds, then (besides the clean channel) this amp is not for you. If you do like the Marshall sound, this baby is worth saving money for. I normally play a 1987 american standard american strat and a Yamaha AEX 520. I really need 100 watts of tube power as I normally play pretty loud. I used to use a Fender twin Amp, which was awesome but not very suitable for all the different styles of music I play with the band I currently play in. Although I use the clean channel in orange mode (to break up the clean a bit) the green mode is probably one of the brightest and richest CLEAN clean channels I've ever heared. This is coming from a guy who used to say that only Fender tube amps have the best clean sounds, so I guess it must mean something. I must be honest and say that I don't use the amp to it's max. For me, the two OD channels have far to much gain in the red stages, in fact I've never played on a amp which can produce such absurd amounts of gain, probably far more than 99% of it's users will ever need. This is what makes this Marshall so versatile, it can produce sounds as clean as a baby's bottom to nuclear mayhem. And what is more important, it sounds right too. In all the channels the bass mid and treble controls are very responsive and make it easy to find the sounds you're looking for. So I'm sorry I must give 9 out of 10.

Although the band I currently play in, is not a proffesional band, we score 25 to 30 gigs a year with more than 3 hours playing time each. Haven't had any problems with this amp yet. That said it is always important to be a bit carefull with tube amps and give them proper time to cool down after a gig (if possible), and of course to have a proper flightcase for it. I've read in some reviews that people don't like the way the knobs are installed. But I guess you don't have to hit them with a hamer do you? Anyway, it feels sturdy enough to me. The only component which could have been made a bit sturdier would be the 6 way switch as it is lying on same stage, as our hyperactive singer is jumping on. Haven't had a problem with it so far but it is not build like a Boss pedal for instance.

Never had to deal with Marshall, for customer support I'd go to the music store and let them sort it out, so; no opinion.

I've been playing guitar for 25 years and the greatest deal of that 25 years in bands. Over the years I've had some crappy amps, but also great amps. This is without a doubt the greatest amp I've ever owned. It is simply a supermachine which hasn't let me down yet. This amp is worth trying in the shop, the chance is big you leave the store owning one.

Versatile? Of course. That's what it's all about. 4 channels, 2 fx loops and a really cool programmable footswitch. That means I can have my delay pedal on all the time and set a channel up to come in with more/less gain, boosted and with delay (or reverb, or both). How cool is that? No more tap dancing on my pedal board!!
I grew up with LIne 6 PODs and all that digital crappery, so this is going back to my roots with a fat set of balls dangling between my legs.

I'm using a Gibson Les Paul Standard, a 1972 USA Strat and a 1982 Gibson Dot.
I was looking for an amp that would cover my needs of versatility and quality. I traded in my AC30 and JCM 900 112 and bought an Orange Rockerverb. Should have been amazing but after rehearsing with my band it made me want to cry. No no no. Where's the bottom end? Where's the glassy shimmer? Why the ridiculously long and unusable reverb? It was ugly, man. I ran back to my dealer and begged him to trade my orange for the JVM. After all, I'd settled into the JCM 900 with ease so I wanted the best Marshall I could get for my money.
Basically, it sounds cool. Love it.
Yes, it's compressed and heavy but that's the sound. We may as well be discussing whether red is better than blue, or brown better then pink. It sounds like it sounds.

I play in a different band as a bass player and at one point both our guitarists used JVMs. I wanted to smash them up and piss on them cos they would make my ears bleed in stereo. I used to drive the amps around and would smile as I heard the JVMs crashing around on the floor of my van. Surely all that complicated circuitry would give up soon? Nah. I think a valve went once. That's all.
Now I'm the guitarist in a new band and I HAVE THE POWER. Also my friends' JVMs were the combo versions, with the valves cooking underneath the circuit board. Not so with the head. Just wish it had the fail-safe valve system that my 900 had. Hence the 9.

3 year warranty. Lovely. I live in England and Marshall are great with repairs. They are happy to service any old Marshall at a reasonable price and are on the end of the phone with friendly advice.

It's really good. Built in England, loud as fook, ugly as sin. I'm getting mine re-tolexed in white next week and I intend to have sex with it when it gets back. I'm gonna get the VOX NIGHT TRAIN as a backup though, I'm a happy man!
Incidentally, I'm playing it through an Orange 212 closed back cab with a Vintage 30 and a G12 Heritage (55Hz). Yes, I have a spare G12 for when the other one melts :-)

This is actually the first time I write a review here but reading about all the reviews on this amp I really think I have to give my opinion because people who write they don't like it don't know how to setup this great amp.

Having said that, this amp is pretty versatile. 4 different channels all with own EQ controls, reverb and midi switching. 2! FX loops of which one can be turned on/off with the footswitch (or midi switch) which is extremely handy since now you can put a noise gate in the fx loop and leave it off when you use the first 2 channels.

I can't think of anything I would add to this amp, maybe that the second loop was switchable as well haha.

I play Rock ranging from Queen, Guns 'n roses, pearl jam, thin lizzy, neil young, black sabbath to metallica. We also play alot of clean ballads so I was looking for an amp which also had a great clean channel (and this one hits the spot)

First of all I play 20 years and am very very very critical about my tone.

My path is most of the time; Ibanez JEM7VWH (vai signature) -> TC Nova dynamics compressor -> Amp -> loop 1 noise gate from Nova dynamics -> loop 2 G-Major (also with a slight noise gate)
I use a bit of delay and chorus on the g-major and thats it.

The amp by itself has very humming OD-1 and OD2 channels (typical for this high gain stuff) but with the 2 noise gates set on a moderate gating it is COMPLETELY gone (even with volume and gain at full), no noise whatsoever and I retain the full dynamics of the amp and sound. It sill sounds organic.

The amp can make all classic and new rock sounds. (it CAN do all the marshall sounds, I have owned all types of marshalls)

In the past few years I have played a Triple rectifier, H&K Triamp, Triaxis w/2:90, Brunetti EVO XLR60, VHT sig;x, Mesa Mark 4, Carvin Legacy, VOX AC30CCx2 and all didnt do the trick. The triple rec. had a very unuseful clean channel and the 2 gain channels were alike. The VHT was to grainy and again the 2 gain channels are alike. The Brunetti was actually quite good but it needed constant adjustment and the presence was a bit to harsh, the Triaxis (2.0) was not bad but the triple rec high gain was better and the Mark 4 had better moderate gain sounds. The Triaxis was also rather noisy. The VOX is a one trick pony, the Carvin is AMAZING but lacks a master volume control and has to be set very loud.

In the end I have a taste for EL34's and find the 6L6 amps rather uncharacteristic.

The Marshall however is responsive, has gain ranging from clean to bluesy to AC/DC to 'almost' metal. It combines very well with my guitar, the sustain is unbelievable and I can hear EVERY note , even when playing chords. It cuts through the mix like no other amp (well maybe the VHT which did a good job being heard)

I takes effects very well but believe me; Buy a good noise gate (or 2) buy a good transparent studio compressor (use with moderation) and buy a good guitar and you will have found great, quiet, versatile and responsive tone!

Gigged with it 3 times now, no issues. So really no comments here but then again I have never had problems with any of my gear.... I only buy quality :-)

Never dealt with Marshall. I only deal with suppliers in the netherlands of which I have to name a few I REALLY dont like;

1) Dijkman (for being only interested in making money and even though you have been there for over 10 years you still have to empty your bag when you leave the shop though you have bought for over 10k in gear over the years)
2) Dirk Witte (for having to wait for hours before you get help)


I DO Like

1) Sound plaza, great service, hot coffee and quality stuff
2) Max guitars - same as above
3) Feedback, no coffee but enormous range in gear and testing rooms

Playing for over 20 years
Owned PRS's , Gibsons, Fenders and now my main is a Ibane JEM 7VWH

Actually you name it and I probably would have had it for either a logn or a short period of time ;-)

If it were lost I would buy it again immediately, there is not better rock amp out there in the 1200-2700 price range, I am serious.

Marshall JVM 410 Head. I play it through a 1960A and a 1060AV, everything is completely stock, with the exception that I changed the amp's V1 to a TungSol 12AX7. The features are awesome, with the major exception that I would prefer there to be a Presence control on each channel like the Mesa Rectifier and other amps.

My review will heavily compare to the 3 channel Mesa Dual Rectifier.

I've had this for a year now and have only played it through the two cabs I mentioned above. It's an early model made within the first 3 months. (BTW - never a problem with the footswitch). For live situations I've only used it through the 1960AV. First impressions were that the tone was really thick, probably because it doesn't have the high end buzz that the 2205/2210 and other amps of its class had. After the novelty wore off I realized it's actually pretty thin and compressed. The whole thing lacks balls. The tone is generally bright and shrill. There's none of the traditional Marshall warmth and punch (ala JCM 800 and earlier). You can get some lows out of it mostly via the Resonance control, but that just adds sub-bass, which isn't conducive to a live context. It's feels like the power amp never really kicks in and takes over; when you turn up the Master(s), it just gets louder and brighter. There's no pick attack, there's only bright and brighter. In fact, the Mid knob seems more like what a treble control should be. The Presence and Treble controls only take this amp from bright to brighter and shriller. There's a certain "shwang" to the tone that just grates on my ears.

The OD1 Orange mode is the best this amp has to offer. But even that sounds thin, compressed and lacks expression. The OD2 channel's Mid control is just useless; scooped no matter what you do to it.

The Crunch channel's low-end is too unfocused for it to be useful for anything, though it does sound "rockin'" I suppose.

The Clean channel is not bad. It doesn't shimmer, but it is certainly brighter than Mesa's Rectifier clean channel.

I've tried almost $2,000 in speakers and $300 in tubes. The character of the amp remains what it is despite the differences tubes and speakers make.

This amp doesn't sound warm and electric, it sounds cold and electronic.

It's been reliable, but it's built really cheap. The knobs move because they're not bolted to the faceplate like even my $179. Marshall MG15DFX is; they're simply slapped on a cascading PCB and poked through the holes, where a knob is placed on a plastic shaft (for this alone, Marshall should be ashamed). The pots aren't the typical qaulity large/round diaphram pots, they're cheapass mini-square pots on the PCB that can't be easily fixed. All the input jacks are plastic... everything... everything is as cheap as a Dell computer on this amp. You can love it all you want because of the money you spent, but you can't convince me that this doesn't fall below the quality line of even the original SS Valvestate series.

The bottom line here is, Marshall's JVM line IS the new Valvestate. It's BUILT like a Valvestate, LOOKS like a Valvestate, and most importantly, it SOUNDS just like an older Valvesate. The features are great, but in the end it doesn't sound like a nice big fat warm Marshall, it sounds quite like a computer motherboard, borderline hi-fi at least in some respects (but not at all like modelling).

I used to own a 2205 and a 2210, and have played a small handfull of earlier Marshalls. I can say without regret, that this doesn't live up to those standards. If you want quality, you'll have to look at either the Artist or Handwired series, pay a lot for them, and sacrifice features.

I like to believe Marshall tries hard, after all, they are my favorite tone of all time. But my ultimate opinion on the JVM is that it sounds like the next Valvestate and it's way overpriced. The Valvesate 2000 (AVT) failed, so now they decided to add a full tube compliment and call it a whole new series. But they still sound solid state-like, and tube changes have minimal effect on tone compared to the "real, old" tube counterparts.

It's time I got past the white logo and the old-time mistique, and moved on to better quality and tone for the money. I have a Mesa 3 Channel Dual Rectifier that, although it doesn't sound like a Marshall, it sure does please in tone and quality.

This amp was built in 2007. The features on this amp include everything except the kitchen sink. I play classic rock to metal. It covers them all. It's a 4 channel with three levels per channel. Has a serial loop for pro gear, and a parallel/serial loop switchable for pedals and semi-pro gear. 100W is overkill today. I wish the 50W version had the four channel option

I play with a Gibson Les Paul and SG. Theoretically the amp should cover everything, but with the stock tubes it tends to squeal like a pig on the OD Red settings, borderline on the Orange. You need a noise gate or two just to even be able to use the overdrive channels. The clean is the best clean Marshall has done, and it does break up at high volumes. The distortion is brutal and IMO overkill. After having one for several months IMO the sound quality is not $1200 better than a Peavey 5150. Don't get me wrong it has some great tones available with one caveat -- when it works.

No. I cannot depend on this amp. I would never gig without a backup, because it is so complicated that something will eventually malfunction. I'm not hard on gear. This amp just acts strange sometimes. You'll think you have the sound dialed in then something will change. Mine ate power tubes for breakfast and preamp tubes for a snack. Tubes on one side would redplate or start arcing, yet the same tubes would work in other amps. It's a mystery. The amp drove me nuts. It worked properly for less than a month out of several. It reminds me of a car that was made in Yugoslavia. I just unloaded it. Good riddance.

I just love the fact Marshall has no contact numbers for Marshall USA. Your total contact with Marshall is through your local amp tech or through their UK web site from which you might get a reply. I really feel sorry of amp techs with this thing.

The dealer was the best support here. I'd give the dealer a 10 for customer support, but I'd give Marshall a 1.

I've been a musician for over 4 decades. Guitarwise I have more gear than I need. We'll leave it at that. If this amp were stolen I'd pity the poor bastard, report it to my insurance company, and get a cash check and get something that actually works. The sad thing is that it has so much potential. I liked the versatility of the amp. I liked the tones I got during the test. I compared it to a lot of other amps: Mesa, Bogner, Egnater, Soldano. I couldn't afford two of the brands. The JVM pushed my limit. I chose it because it had the Marshall bark, and that's something my Peavey doesn't deliver. Peavey gets bashed a lot, but they're workhorses. What do I wish the JVM had? Reliability.

As mentioned earlier, the amp has 4 channels and 3 modes per channel. I am into blues, rock, pop and commercial music amd mainly doing studio recordings. I was using GT6 bofore this as a effect processor. Now i have switched to MArshall JVM 410H and I also use an external effect processor G Major (TC electronics) for Chorus,reverbs, delays etc. When i compare this to any other effect processor, the effect processor sounds very thin as compared to JVM 410H.
I mostly use it for my recordings and i feel this is awsome. This is pure tube based circuit and i personally love tube based equipment.
The only thing i feel this lacks is that the line out is not connected to the master volume. So, if i want to use the line out in my live performance, i cant give this directly to the PA coz i would loose my master volume settings.

I have Ibanez Prestige series RG2550
I feel this amp is very versatile and gives all kinds of tone from clean to heavy distortions. I really like OD2 mode too. It has been discriminated by many in the reviews but i really like this for solos specially when i loop it with my G major and use a gate over there.
For clean tones i generally use my middle single coil pickup with the clean green channel. it gives a very clean tone till 1 o clock. after that it starts distorting.

I have not used this much so cant comment on it.

Till now i didnt have any problem with this unit so cant say much abbout it.

I have been playing this for about a month and i hve fallen in love with it. Yes , of course if i had the money then definitely if it was stolen, i would buy it.
What i love about this is its versatility and the warmth in the sound.... it really sounds big in my recordings compared to my previous recordings. Now i know what was missing in my recordings. No digital or solid state technology can beat tube... Tubes rule!!!!
I compared this with Line 6, Fender and Pevey. Its not that i didnt like them. I would rate Line 6 as 5/10, fender as 10/10 Peavey 10/10 but the problem with fenders and peavey was that they were not versatile. I would definitely buy them as a second amp when i have more money. But this is definitely a good buy if you want to be a versatile player.
Let me tell you i am from India and I specially went to US to buy this amp coz it was not available here in India!!!

4 channels 3 modes p channel a lot to chose from other specs were already mentioned aswell

clean-one of the best cleans on any amp period! ive played through fenders and vox's that are in theory top of the line
crunch- great,very punchy very rich harmonics coming through and it cleans up great very responsive
od1-great!very creamy smooth typical marshal sounding and it cleans up great :)
od2- i dont use it that much, but it can be usefull for sure

i havent had any problem so far, i usualy play gigs 2/3 times a week andi do have a backup(laney combo)

haven't dealt with them

tube amps do not make miracles for your playing,if you suck, buying a tube amp, especialy marshalls(JVM) wich are very dynamic and responsive,wont improve a thing in fact it will only make you sound worse and another thing,those eq knobs that say bass,mids and treble are there for you to use it!so dont be afraid, if you cant get a great tone out of this amp youd better off just playing acoustic or not even playing at all(no disrespect)

Its a great amp, try it out!