Revisiting The Marshall JCM900.

[@RobertWJackson]

As a JCM 900 fanatic (I still love my '90 4100 to this very day), it definitely sounds like you got one that was either heavily modified or malfunctioning somehow. In my experience, there is not anything fuzzy or muffy sounding about a JCM 900 MKIII at all. Glad you got the opportunity to give it another try!

[@Obigrobi666]

Totally agree!

[@dannbrauckmann1545]

I'm not an expert on JCM900s, but I do know that the Mk III is a different beast from the Dual Reverb, as is the SL-X. Folks tend to prefer those two models over the Dual Reverb models. I read about the differences, at one point, but I've since forgotten what I read.

[@jhellert1]

It's also possible that he was pairing it with a "bad" or "non-ideal" cabinet.

[@zac3126]

@@jhellert1 cosign, the JCM is not my favorite amp or anything, but I've enjoyed and used it, but I always found mine sounded really wooly through my mesa oversize, got a Zilla Cab, and it sounded much more clear. Cab affects so much

[@SaintFredrocks]

@@zac3126 speakers will change your tone more than anything else.

[@JackStolz]

I toured with this exact amp from 2007 to 2010 and absolutely adored it. It now lives at the studio!

[@kevinstarofficial]

Morbid Angel used the JCM900 for all of their carreer both live and in the studio. This amp is responsable for the most massive tones ever recorded on albums like Covenant and so on.

[@kvltwalter]

I was going to say the same thing. Trey has been using the 900s for decades

[@Dogmatikos]

with eqs and pedals, this amp sucks...

[@kevinstarofficial]

@@Dogmatikos no man, trey doesnt use any pedals for high gain. if you know what you're doing this amp is brilliant

[@Dogmatikos]

@@kevinstarofficial hahaha no it's not, i had it for years, ac/dc tone at best

[@everyinchtheanimal]

@@Dogmatikos if the best you got was ac/dc either something was broken or you don’t know what ac/dc sound like

[@irrsinnrainer]

Damn, that full mix is basically the sound of my youth. It reminds me so much of the guitar tones a lot of the bands I Iiked back then had on their records. I love it.

[@DanKamYouKnow]

I got my JCM900 1x12 combo about 10 years ago for $400, changed the tubes a couple times and have been rocking it ever since. Throw a boost in front, delay in the effects loop, and this amp is awesome! Cuts through any mix and has such a good high gain sound.

[@Zerodirt666]

Been using the 900 for years and never an issue. Awesome tone at lower volumes with no pedals and super easy to dial in makes it much more practical for real world use. That it's hated in some circles is an added bonus.

[@gogopowerrangers-gogo]

My first and only ever amp has been the JCM900 4100 High Gain Dual Reverb Head for $900AU with a Vox4x12. Got it when I just turned 18, 23 now and still sounds great

[@castleanthrax1833]

Nothing at all wrong with what you've got. ✌️🇦🇺

[@Bullkthx]

The other guitar player in my old band played one of these and it sounded great. We were a hardcore/metal band, and the tone of our 2 Marshall's kicked the shit out of most of the bands (sometimes much more expensive rigs) that we gigged with. He went straight from his 90's Gibson Les Paul studio right into the amp. No tube screamer or anything

[@chrisgoblin4857]

I used to play in a progressive metalcore band and was using a JCM2000 straight into my Ibanez RG with no pedals. Used it live with just footswitches for channel and reverb and it completely blew the other guitarist's Hughes and Ketner out the water. I love all the JCM series and I will never get rid of my DSL100.

[@mikedradio]

@@chrisgoblin4857what was ur band called

[@joshuamessenger]

You traded a 5150ii for a JCM900? Worst trade of all time.

[@doctersound9630]

FLUFF Please make a video like this for the EPIC SUPER DUPER EXTREME MARSHALL TSL 100 amp next! Most underrated amp ever! Pretty please? Cheers from Canada!

[@kalebaldwin5398]

There is nothing wrong with diode clipping - if it’s done right. Many modded Marshalls - including a lot of those beloved Jose mods - use diode clipping. And, of course, we stick overdrive pedals in front of our amps.

[@guitarexpert2245]

Besides the diodes, the entirer pre-amp is OP-Amps, all solid state. If you can't crank the hell out of it sounds thin, & very solid state.

[@caseyjones3522]

@@guitarexpert2245 why are there preamp tubes in it then?

[@agirlsname7159]

If anything blows a young guitarists' mind, it's the notion of sound alone vs. sound in a mix. I never had more compliments and amazement for my live tone than the brief period I had a 900 in the 90s. I of course dumped it for a Recto because that was clearly "better." Nobody ever raved about my live tone again. There's something about the 900 that just cuts, even if it (like me naked) is nobody's fav in the bedroom.

[@castleanthrax1833]

I hear ya.

[@spankymcnugget3166]

I love the JCM 900 4100 dual reverb with 5881/6L6 tubes. Most of the hate comes from JCM 800 fan boys that can't cut they're hair and let go of the 80's. Most people who hate the JCM 900 haven't even played it. John 5 from Marilyn Manson, Rob Zombie and now running with Motley Crue used nothing but the JCM 900 and the cleans from that amp sound amazing.

[@markspurgin8225]

Did you say you can get a used one for 8 or 9 thousand ???? 🤔 or did I hear that wrong ????

[@kalebthornsberry870]

I think I'd rather just get a Valvestate

[@manupbritain5232]

I got a DSL 100H last year and it is an awesome amp. It covers lots of ground from clean to high gain. For less than £400 it was a bargain!

[@Soltero1595]

Sounds a bit like Foo Fighters, no clue what they use live :)

[@andrewcap2419]

JCM 900 SL-X goes hard as hell. Best of the 900s IMO.

[@nessmalone]

Totally agree!

[@hotcitysoul7144]

JCM 900 SLX 2500 is incredible

[@Dankjo]

Gotta jump the loop with these though! They Sound sooooo much better if you do! And use cha A and a SD-1nn

[@tommorris5069]

I own a JCM 900 and not crazy about it’s gain sound. I run a Wampler Pinnacle distortion pedal and Seymour Duncan 805 overdrive on lower tunings. It depends on the guitar and sound I’m looking for. Sometimes I use the Pinnacle by itself and 805 by itself, and sometimes I stack them. I do like the 900’s clean channel for pedals. I am a classic rock guy.

[@Tamajyn69]

I still wish I had picked up a 900 SL-X when I had the chance

[@DavesGuitarChannel]

You are talking about 4100 and the 4500. Which are both dual reverbs. The amp was the step up from the JCM 800 2210 2205. Which is very different from the JCM 800 2203 and 2204. Calling amps by the series name causes great confusion. Where as I do not care for the 4100 4500 models, the JCM 900 2100 and 2500 are awesome.

[@saffel]

Good enough for Lars Fredrikson’ 🤘🏼

[@mitchbeauchamp3397]

I have used one for 10 years and never understood all the hate it gets, this thing sounds awesome. I wouldn’t say it’s better than some of the top Marshall amps but it sounds really good to my ears. It’s also an amazing pedal platform! Try a few different Boost pedals with it

[@RockG.o.d]

It’s because they couldn’t get that oasis sound from it haha.

[@booneh]

The JCM 900 SL-X didn’t use clipping diodes. It had an extra cathode follower after the first preamp stage to increase distortion and ICs running into the master volumes for extra gain. Definitely the best sounding of the line.

[@nessmalone]

That's correct!

[@AndiKravljaca]

I've had my 4100 dual reverb head since 1998 and absolutely love it.

[@markusaurelius777]

Couldn't wait to get rid of the one I had....1993. Maybe the tubes were going? I dunno. Grabbed a 5150 Iconic head...still have the Marshall 1960A cab with G12T-75 speakers. The 5150 Head CRUSHES the JCM 900 into the ground, LOL.

[@MattKirbos]

Check the 900 SL-X.. best of all the 900's IMO. All-tub circuit. No diode clipping

[@nessmalone]

that's correct!

[@stangfan1984]

I have a 94 JCM 900, and it sounds phenomenal! Great for early 90's metal! I think all the hate mostly comes from Marshall purists hating change.

[@ppmoscadebar]

Punk rock amp, straight on. Great review man, as always.

[@DaisyHead666]

Sammy from Acid Bath used this on their records, combined with a Randall RG100ES is an INSANELY massive tone.

[@rjo8500]

I had a few of these 900’s including a few of the apparent grail Mark III’s. They all didn’t have the balls and sweeter tone of the 800’s I had. The 900’s also exhibit a weird note decay especially on channel A. But all in all with a TS or an SD1 in front they rock out good enough.

[@GrungePopRecords]

Bravo. Good one. One of our bands use it exclusively with zero pedals. Check out Prince Of Lilies and their two Steve Albini-recorded albums

[@mysupersuperglide]

The 50 watt is way better.

[@StuartBridson]

Easily the most underrated Marshall amp of all time. I wish I hadn't sold my 4100 but it needed so much work doing to make it more reliable and robust. Clean? Chimey as hell. Dirty? Filthy as fck. I beg them to do a JCM900 Studio classic reissue. Sounds incredible through Vintage 30s especially when being pushed by a JB.

[@danieljakubovic2294]

i reallymiss my 900 that i had to sell. i love this amp. so u turn the treble all the way down so what,,,,it sings beautifully

[@joshuacyran6444]

I'd love to see a revisit of a 900 SL-X. I know you've said you owned one in the past. It's the only Marshall I've ever owned, and a great amp in my opinion.

[@Loordt29]

yea, love my SL-X. always thought the SL-X was more of a hot-rodded 800 with tubes instead of the clipping diodes.

[@AlanTopham2237]

I had & sold an original JCM900... I regretted it every day until I found a 1994 dual reverb Combo version (which I still own & will never sell)... most underrated, but awesome amp ever!!!

[@JustBlueFish]

Amp sounds awesome, not sure why it gets so much hate.

[@Chugs4Serotonin]

JCM900s are pop punk in a box, and that's why I've always loved them

[@Joey.Darkwoods-Studio]

I gotta admit, the two original 900's I had back in the day (HGDR and HGMV) sounded NOTHING like this... So now I am wondering if my older amps had an issue or if the new reissues have been tweaked. Because I hated my 900's back then.

[@dfp327]

I fucking love that tone so much. I kind of understand why some people hate the 900, but in reality, it is because they want it to be something that it is not. To me, the best example of an awesome JCM 900 tone is Everything Sucks by Descendents. Incredible album!

[@Julianuribe23]

How do you know that was recorded with a 900? I know a lot of punk bands used 900s (or dual recs) but I didn't know that album used a 900

[@apersonontheinternet8034]

Was doing sound for a gig with 3 JCM900s provided for house backline. Every single one sounded completely different, like, not even slightly close. The only thing they had in common was that they all needed the treble and presence practically off, bass on full and mids on about half. Even then they sounded like a can of wasps.

[@northshoretom]

I find my 900 really comes alive if the master volume is above 7-8. Monstrous difference in tone!

[@guitarexpert2245]

True, but where can one crank it that loud?

[@northshoretom]

@@guitarexpert2245 thankfully I play with a group that encourages me to be loud.

[@lordtavian]

Great amp, totally underrated future classic.

[@RobertWJackson]

One more thing about the JCM 900 Dual Reverb models. When they came out in 1990, they actually came with EL34's from the factory, and they do sound a lot different from the 5881 versions that they eventually switched to after about a year and a half of them being in production. Reach out to me if you'd like to try it, I'll be happy to loan you mine.

[@castleanthrax1833]

Generous offer. I may take you up on that Robert. 😉

[@RobertWJackson]

@@castleanthrax1833 🤣🤣🤣

[@strizy]

I just got my hands on an SL-X and it's one of my favorite high gain amps, it can get that boosted 800 kinda mid heavy low end thing or you can really tighten it up all depending on how you dial it. Absolutely love the SL-X. This amp sounds pretty good, a bit fizzy/buzzy sounding but not terrible

[@ryancirca72]

...I've always wanted an SL-X, ...Way back in the day when I actually bought my JCM 900, I ran across one they had just come out! I plugged into it & thought DAMN! it was what I actually wanted, But at the time I was playing Rythem for the band I was in & the head was being bought on the bands dime, so of course the Singer Band leader lead guitarist frowned on the idea. ...I'm sure it's because he didn't want my tone to get 'out-of-the box" or beefy'er than his might have been. ...HaHaHaHa!

[@nessmalone]

@@ryancirca72 The SL-X is one of the best amps I've ever tried. And as far as I know is full tube. The other two versions (Dual Reverb and MK III) do have diodes, indeed.

[@guitarexpert2245]

How is the SL-X fizzy/buzzy? You can't crank the sensitivity or pre amp past 1, Noon is best. Then there is NO fizzy/Buzzy. Give that a go. In no way should this amp be Fizzy/Buzzy

[@clayearth8287]

They sound similar tp the English made JCM2000 DSLs red channel. I played a used one at G.C. couple years ago and it sounded the same as my DSL red channel. Key with both amps is not to max the gain out or its gets too much of a presense sound in its tone. Too gritty and dirty. Dial back the gain and crank it up....sounds great....both amps. I owned and played a JCM800 50w dual channel in mid 80s to early 90s but my rythym guitar players 73 Superlead with his rat distortion could esaily drowm me out

[@Simple5.0]

I love my 4100. The thing sounds so good. I don’t think it’s my favorite amp but it’s up there.

[@gavinwild2647]

I've had a 2500 model since college. It has seen many smokey bars and bumpy car rides, but has always performed reliably and brought the rock-n-roll.

[@r1deftone]

SL-X or MKIII?

[@nilly666]

ive had a 900 for years now, used loads of different amps before, and theres just something about my les paul custom and that marshall together that just causes some kind of tonal magic when im playing live.

[@ethanpearson897]

I like that fluff is finding his love for les Paul’s the same time as I am

[@DevinCLott]

I’ve got an old 50 watt dual reverb that is an incredible sounding amp. It’s basically only got one setting, but that one setting does all that I’d ever want it to do. Gain channel with bass and mids cranked, treble and presence between like 4 and 6 and gain all the way up. Sounds like Enema of the State. Best part is it only cost me 500 bucks

[@castleanthrax1833]

Nothing wrong with a "one trick pony" if that "pony" does what you want and does it well.

[@LucasMastropasqua]

I don’t know this first hand but long after I got rid of my non-reverb JCM900 in the 90’s apparently if you jumped the fx loop with a patch cable and turned the loop level to high it acted as an additional boost which fattened it up somewhat. I wonder what that would sound like. I hated my amp so much I ended up using mine as a power section for some digital guitar rack gear.

[@karlroszko]

2 seconds of that scooped hissy tone with absolutely no mid punch brings back memories of struggling with the 4100. The sound guy “turn the mids up”, that’s all she’s got!! This amp absolutely sucks. (At least my one did, around 2002-2005)

[@jeffallen3382]

I have an original 1990 JCM900 4500 model with EL34's. You need to try a GT-7025 preamp tube in V1 position. Trust me you'll love it!

[@wiratriputrajulianto]

Eric Rutan (Ex Morbid Angel, Eternal Hate and Cannibal Corpse) using Marshall Jcm 900.

[@加藤未唯-t8f]

Mass of the Fermenting Dregs does play the JCM900 100w with a Strat.

[@SluggerStark]

These were ubiquitous in the punk scene, mid 90's through mid 2000's or so and weren't hated as much as you hear. Our bands first amp was a 50 watt Hi-Watt, which while awesome, was a single channel affair. Cheap cheap in those days, as were jcm 800's and Plexis, which were a dime a dozen. We were stoked to finally get a 900, mainly due to its channel switching, but with some care to setting it up, we got killer tones out of it, for what we were doing.

[@24avenged24]

I'd say they were popular in the punk BECAUSE they flopped with the intended audience. It made used ones cheap and "cool" because they weren't mainstream. Same reason fender offsets became popular with shoegaze and grunge players, and Les Pauls were saved by blues players.

[@thanovee5999]

I've bought a reissue JCM 900 about a decade ago...garbage in comparison to a '92 4100 head. Day and night differnce and i even modded mine to EL-34 tubes (originally came with 5881's).

[@ericv7720]

So this is basically a VS100 with a tube power section. It sounds like virtually every metal and punk record from rhe 90s, which is the soundtrack of my youth!

[@herbmaloid8752]

in the late 90s I played live with a 900 4500 and an 89 jcm 2205 both on 900 4/12 cabs with t75s. The 2205 seemed to jump out better and had better mids. The 900 seemed tamer and wanted to be pushed to sound good and was brighter. BUT the CLEANS just walked all over the 800. Anyway I sold the head to a boy that was learning how to play and got a plexi reissue and have been playing live with it ever since. The 2205 is always stacked under the plexi as a back up. Anyway, I bought a used re-issue 4100 last night and waiting for it to arrive. All these years I have thought about those cleans I used to get, so I am revisiting the 900. I think they cost a bit more to build is why they ask so much for a non popular head. They have to spec a 6l6 tranny, valve failure circuitry, pentode/ triode mode ,Reverb tank and circuit, and the effect loop is a bit diffrent. (sweepable pad vs in/out). People say it's a stomp box in a power amp. I think they are a bit more than that.

[@johnbonham9422]

I play my JCM900-4102 in stereo thru a clean 100 watt Traynor Block 100 junker, dial them to a nice balance and my clean dirty sound using no other effects, just the stock foot 900 pedal is great. Folks hear it and love it.

[@litos_mendes]

slx and mkiii are amazing amps ... the mkiii only used diodes clipping if you use the sensitivity knob ... the rest is very must jcm 800 ish

[@koonsickgreen6272]

jcm900 lead me to believe that tube amps could be shot up and end up sounding fizzy/shrill/weak. I had no background knowledge on tube amps, gain stages etc. Wrong experience at the wrong time?

[@laneonguitar64]

Slash. Greenday, Bush, Silverchair, R.Zombie....so many used those. Why? Endorsement. I was selling them in Austin TX. The '90s were the days of "GIVE me an amp, and I will play it everywhere and anywhere...LOL

[@floridapunkarchivist]

Sounds fn glorious what else could anyone possibly want?

[@MikeKennelly-k9q]

You didn't go over the JCM 900 Hi Gain, Master volume. On these models, if you turn the sensitivity to "0" it eliminates the clipping diodes,..... these amps are something very different,......pure Marshall tube if you turn off the sensitivity,......only model that alows you to do this!

[@PhuketMyMac]

Oh I love a good Rise Against - Revolutions per minute! And I just happen to have purchased a JCM900 SLX that I am waiting for. You made me impatient...

[@rocketpigrecords3719]

I had the 2500 head and those are fantastic. I loved the Dual Reverb...when I was 16 & it was the first Marshall I plugged into. Very apropos for the 90s punk thing and maybe other tones, but even the Master Lead 30 was better - if you want the Marshall JCM800 type tonality. If you just want a good sounding amp, try it. If you live & bleed that 4 knob tone stack, you're wasting your time.

[@Nightingale1887]

Clipping diodes aren't bad per se. They are also applied in the SJ indeed. Plus, JCM900 had 3 versions. Master Volume MK.III, SL-X and the HG Dual Reverb models. MV MK.III has diode clipping, SL-X extra gain stage via additional 12AX7 and the HGDR models have that clipping. You can't simply get high gain without some tricks like starved plate, diode clipping or cascade gain stages. They are not bad amps by any means outside of some cold solder joint problems or PCB issues across the years. People like to trash diode clipping as a bad example then go out and spend a shit load of money on a clean amp and use pedals (which use diode clipping most of the time) for gain. Which has always amused me, the lack of insight and repetition you read on forums or find on yt. Kind of hysterical, sad and funny all at the same time.

[@darthmal1]

Seemed like everyone in the Chicago scene was playing a 900 in the mid to late 00's. I was in my local used shop like 10 years ago, I put the JCM 2000 and 900 side by side, I ended up with the JCM 2000. It just had more of that Marshall sound that I was looking for.

[@jessefillmore]

I bought my JCM 900 4100 and 4/12 1960 cab in 1999 . It was the demo model for MARS MUSIC .....Anybody remember Mars Music ? It was their Cincinnati , Ohio location . They had a stage in the middle of the store and my JCM 900 was the demo model . It's now Sam Ash music . I bought the amp cause I was young and wanted a Marshall . I didn't know anything about amps LOL . I was always told these amps are shit but I always got a decent tone out of mine . Another amp that is a hidden gem is the Peavey Valve King . I borrow one for practice years ago and it sounded really good .

[@portuguesebeer5069]

Hey man! Can you do a video about the Silver Jub's gain stages? When you pull the rithm clip, do you know if theres only the analg distortion workink or if its the analog distortion + tubes? Sorry if its a stupid question, but i lile ti know if the Silver Jub is more like the 800 or the 900 the way it works. Cheers from Portugal 🤘🍺🇵🇹

[@nbl95]

Ok, but so now we're paying $1300 MINIMUM for an amp that "is on the thinner side" and uses diodes instead of tubes? I mean to me the tone sounds fuckin good, but if I'm paying that kind of money I want something that's indisputably badass

[@DavidEllison-kc9ik]

Been playing a 900 since 99. It's still what I think a guitar should sound like. Guess it's all down to personal taste, but I for one love it.

[@sjgreaves]

Not to mention that the 2100/2500 single channel amps had a bridge rectifier (like diodes) between the second and third valve/tube gain stages, an IC buffer (no gain) into the FX loop and for the recovery from the loop then some switching ICs to provide the dual master volumes. Not too much silicon in there at all - less than putting a tube screamer in front of it.

[@Obigrobi666]

Doesnt sound like my JCM 900 MKIII at all. Another video confusing the internet about the 900s sound...

[@virtualtulips7734]

rivers cuomo used a JCM900 SL-X touring after the blue album and i believe for some pinkerton recording-- if it's good enough for that...

[@TheAustinTaylor]

How do you get away with playing this 100 Watt head in a house? I feel like it would be too loud. I really want the JCM 900 4500 50 Watt but I don’t know how it would be in my house

[@ben__ford9235]

Jcm900 on a 800 4x12 cab with an sd1 and the right guitar, if you have little Knowledge on how to tweak an amp you can make Wonders with that combo, no joke!

[@emobutpoofy]

I firmly believe that the DSL series deserves to be hated as the JCM900 has been. I fucking hate the DSLs with a passion but growing up on Rise Against and Bush I would gladly use a 900.

[@rabbleinarms5742]

I LOVED my 900! I sold my JCM2000 for an early 90's 900 and it sounded WONDERFUL. you DO have to spend a little more time to dial it in..... but have you ever tried to dial in a Mesa MK3? I only sold mine because I wasn't gigging and had too many amps so I sold almost all of them off. been seriously thinking about picking up an old used one. Thanks Fluff for ruining the market. 🤣

[@mowdra]

You really need to turn the treble way down (mids too). Also these amps need some volume so the gain knobs can be set as low as possible to achieve the overdrive you want. Then a 900 DR is amazingly awesome.

[@SRFArtandAudio]

My main amp since 96 has been the JCM900 SL-X. Wouldn't trade it for anything.

[@RockG.o.d]

Started recording my new album with the jcm 900 with greenback speakers. :) sounds awesome.

[@mikaashton2152]

I had one i bought second hand in 1996 for about 700 usd. and played it for years without any problems sounded great.. Unfortunately i sold it because it was too loud for my house.... Regret it now.

[@BobbyCulpepper.srv3fender]

My first Marshall as a teen was a 900 100watt, I couldn't understand why is couldnt get the drive right, so they told me I needed a dsl2000 so I traded it for that. Still couldn't get enough gain, then I heard about the peavey XXX, so I bought that sucker when it came out, loved it. But I was in heaven when they came out with the peavey JSX

[@carvinblack]

I think you meant $800-$1,000. I had to rewind when I heard you say 8...9 thousand dollars. 😁

[@youWoNtLikeMe04]

I had a jcm 900 2x12 combo in the late 90's. I want another one.... should of never gotten rid of it. As a teenager, mistakes are inevitable.

[@davidwilkins2368]

The EL34 equipped versions sound better than the 6550 equipped ones.

[@rolandvoros6640]

The JCM 900 was my first tube head around 2001 and I didn’t like it because of its crispy,fuzzy distorted sound. But the clean cheanel was awesome with a strat or tele!

[@EasyHeat]

I got much love for the reverb versions of the 900. That said? It WAS NOT a JCM800. Still? I got much love for these amps. No F'ks given.¯\_(ツ)_/¯

[@shaunlafountain7189]

It will sound good with certain speaker types... the hate might come from uncomplimentary speakers

[@VanjaSpirin]

Yes, it sounds thin, fizzy and ugly. I would never buy or use this amp. For metal, JVM is the only choice.

[@Da_Publick]

The Punks, the Thrash, and the Hardcore have been worshipping this amp since it came out.

[@Quusikko]

I really haven't thought about it until now how ridiculous it is; people put transistors / diodes / whatnot (boost pedals) in front of their JCM800 and then they hate when Marshall does it for them with the JCM900.

[@lucyfuir6386]

There were different models of the 900 series. The 2100, & 4100 were 100w the 2500 & the 4500 were 50. 4000 series were dual reverb.Then you had sl-x which was 2 channel od no clean.

[@jacobk4n3]

My first real tube amp. Traded it for a Mesa Single Rectoverb that I hated in comparison. Wish I could get that thing back.

[@runabout76]

Great review! The JCM900 line is quite misunderstood. All the models were meant to be the evolution of the previous. The 2100/2500 (Mk III and later Mk. IV SL-X) were the successors to the 2203/2204 single channel amps, but with an FX loop and dual master volumes. The 4100/4500 were the successor to the 2210/2205 split channel models. Similar concept but more gain. The 6100 (30th Anniversary) was technically supposed to be a 3 channel addition to the line, but was delayed, so it was re-named. The best of the lot were the 6100LM and the 2100/2500 Mk. IV SL-X, but they often get overlooked because of the hate of the 4100.

[@jonwanrocks]

i've always liked the jcm900s idk why all the hate. the 4500 was plenty marshall-y to me. but im a gainiac. sue me. i actually liked it more than the 2 reverb version

[@brandt69420]

My fav Marshall tones. JCM900 is wicked

[@markusaurelius777]

lol