Marshall JMP-1 - Loaded With Tone Or Loaded With Crap?

[@NUNUA]

Deftones made epic albums with this unit. Massive sounds!

[@AngusClarkGTR]

I toured the world with Kitaro using a JMP-1 /9200 rig from ‘94-‘98. It was great. Never let me down. I sold it soon after however. Can’t say that I miss it, I recently recreated that sound on my axe-fx just for kicks, which sounded great.

[@luisbovleck5173]

Kudos for those weedly-weedly solos with Kitaro, Angus! Kokoro remains a recurring memory.

[@MaTTheWish]

I was huge into Kitaro in those years, were you by chance playing on the live album An enchanted evening? One of my all time favorite albums. Phenomenal! I saw Kitaro live in Glenside PA, outside Philly. Brought me to tears. What a great accomplishment sir. Congratulations.

[@AngusClarkGTR]

@@MaTTheWish yes, I played on Mandala, An Enchanted Evening, the Cirque soundtrack, and Gaia Onbashira. If the Glenside date was on the Mandala tour that was me.

[@MaTTheWish]

@@AngusClarkGTR @AngusClarkGTR WOW, one of the greatest of all time! That was my favorite Kitaro era. Absolutely Brilliant work. Congratulations on a great successful career in all your different endeavors. Anyone reading this who doesn't know, should go check it out. Immediately. Amazing player!

[@chucksurgeonertribute2113]

Did you have output from both channels? Only the right channel works for me, but both emulated outputs work.

[@theodery2712]

That's one of the amazing sounds ever. Right amount of tube and clean that the big amps don't have.

[@brucemcsquid6227]

That thing is killer. Maiden toured those for decades and always sounded amazing live.

[@robertdouble559]

I came here to say the same thing!

[@DEPTH27]

Same, trying to achieve Dave’s amazing tone

[@andremessias2974]

Maiden's JMP-1 were modded by voodoo amps

[@Kammoflars]

I may be wrong but I think Dave used jcm heads for the power section sound which makes sense. I think all my Kemper and Ada mp1 sounds better through the Mesa Roadster power section than the power amp so I guess I have to get an all tube 100w power amp.

[@TheOligoclonalBand]

My JMP-1 is still in frequent use. I love it. I use it together with the Two Notes CAB and it just is great.

[@georgefry8035]

How do you set your cab M for this. I have been wanting to try this method.

[@TheOligoclonalBand]

@@georgefry8035 I have the first CAB but it should be similar. I go out the normal output of the JMP-1 and use a cab that I like (I bought a cab pack with a Soldano cab with Eminence speakers. If you would go into a power amp and a live cab, you could use the second of the stereo outs of the JMP-1. I also have tried mixing the Two Notes CABs output with the cab sim of the JMP-1. You can get a bit more bite in the sound that way and cut better through a mix.

[@Biffinnbridge]

Jive Bunny’s hair is circa 92

[@roccocicchetti6169]

@@georgefry8035 I use the same gear, you should try the JMP1 effects loop. Use the send output of the JMP1 to the input of the Torpedo, from the Output of the Torpedo you can use stereo effects, pedals or stereo multifx, from the multifx outputs to the L and R return of the JMP1. Then you must set the effects loop level at max (12) it works as a parallel loop, then adjust the dry/wet mix in your multifx configuration in order to have a nice balance between your JMP1 guitar tone and the fxs and voilá, you hace a stereo setup with a cool power amp+cab emulation in stereo from a Torpedo CAB which is mono. ;) It sounds amazing with headphones (JMP1 phones output) or using stereo monitors.

[@mikeoxley4458]

I had the JMP-1 for many years, and used it live, on sessions, and tours. Sounded great!

[@leonbrownmusic]

Still got mine! Used to run it with a Boogie 295 Poweramp and a Quadraverb. Loved it!

[@stratocaster2206]

I have had a Marshall JMP-1 since about 1992 and I would have to have to be threatened at gunpoint to part with it. And even then...

[@JohnWiku]

Fight for your life and your preamp's!!

[@princesssolace4337]

I still got a Hughes and Kettner Metal Master preamp

[@illshowyou2]

​@@princesssolace4337 I have three guitar picks

[@infinidominion]

Does yours run loudly? I had one a few years ago and felt like I needed to rack it in some soundproof case to not hear what I think was a fan in there

[@stratocaster2206]

@@infinidominion No, it's absolutely fine.

[@JLE999]

People always cite Maiden, Priest, and Def Leppard when talking about the JMP-1. But it also was really big with alternative/industrial bands. NIN, Smashing Pumpkins, Ministry, Filter, and Deftones to name a few. Also the clean sounds on the JMP-1 are very usable. People act like they aren't and it's just not the case. OD1 channel greatly benefits from pushing it with a boost.

[@paulbradshawguitar]

at the start looked like James was wanting to connect to the JMP-1 via Bluetooth 😄 the JMP-1s are a classic, great to see them still around and 150 quid is a steal, nice one

[@robkarloff]

I run an ESP EC-1000 with an EMG-85 in the bridge into a Boss GT Pro effects unit, with a JMP-1 patched into one of the loops, and the output of the GT Pro into a 3U 50/50 power amp. The 50/50 got a full revalve and service at Marshall last summer, and the JMP-1 got one about 8 years ago now. They've never let me down, and I now have the 50/50 mounted in a 3U rack unit with luggage handle and wheels, with the GT Pro and JMP-1 in a second identical rack unit. Easy to stack and connect together, and run the output of the 50/50 into a JCM800 Bass Series 4x12 base cab. I like having the spare power amp in the 50/50, in case I was to have an output valve failure on tour someplace. We play Motorhead/Zeke/ACDC-style fast paced stuff, and I often get positive comments on how the thing sounds (although some venue sound guys don't like how loud it is... predictably). I still have a modded JCM800 2203 and a now retired JCM2000 DSL50 (too many output transformer and output stage issues to be reliable), but the JMP-1 and 50/50 combo has been my setup for almost 20 years now. I'll never part with it!

[@deddiev1718]

James is a riff and classic rock machine

[@sdy30]

Love it! My era! I had an ADA MP 1, which was great, and an Alesis quadraverb. Great sound! Takes me back!

[@winstonsmith8240]

Still got my Quadraverb.

[@princesssolace4337]

I still got my Yamaha 02r mixer ... paired my ADA mp-1 to a DigiTech dsp .... also got H&K Metal Master preamp. .... I luv those gears, only use Protools for editing ... I even use Alesis ADAT as my format

[@zundap100]

Marshall JMP-1 together with Marshall EL84 20/20 power amp is a killer sounding machine , it is så f.... great.👍

[@Bobby_Digital37]

Man this amp is absolutely killer!!! Dirty or clean is sounds great!!

[@arcam4981]

I stilll have the JMP-1 in my rack and I love it

[@steveburroughs7343]

Had one back in the day, with a Rocktron & stereo Boogie power amp, and it was a great rig. Geoff Whitehorn gave a a table of his settings and I never looked back.

[@billsherrington5996]

And Geoff always had epic tone!

[@steveburroughs7343]

@@billsherrington5996 yes indeed! And an all-round gent. He actually confided in me once that he preferred the transistor Marshall pre amp that was released around the same time. What a tasteful player too.

[@GuvnaOnSpotify]

I've almost never seen anything go for a fair price at the GH Auctions. Glad you got a deal - I've actually stopped watching their auctions! I had a JMP-1 for years, running into a Laney FX return. I loved that thing. Sold it when I left Australia... and although I have some great amps now (2203 & an Mesa Boogie Mark IV), there were some tones on that I cant get with my current amps. Great unit.

[@ELEVATETHESKY]

I love the Marshall JMP-1. The great thing about them is they can quickly go from meh to amazing. When I first got one I wasn't that impressed but once I started tweaking it and even adding a third party EQ it just opened up. Adding the right amount of low end and high cut can balance out the treble and fizz it is known for.

[@biggmann9169]

Thanks for this video chaps....takes me back to my youth...still got mine but been playing fender amps of recent years....will have to dust it down and have another go !!!

[@matrix12x]

Great video. the part of the circuit that's doing all of the distortion on these units is all solid state. There are 2 tubes, but they are borderline decoration.

[@dinomueller8461]

I‘ve read other people stating this. I wonder if this is just gossip or if Marshall actually got away with a „tube preamp“ which turns out to be solid state. They would have been lying in everybodys faces. @matrix12x you got first hand experience with this matter?

[@matrix12x]

​@@dinomueller8461 I studied the schematic (its available online). The diodes right before the tubes are what clip, not the tubes themselves. The tubes do amplify, but its already clipped before that. And the pre-amp sections before the tubes are opamps. either way, I personally love the way it sounds.

[@dinomueller8461]

Interesting, thanks for sharing!@@matrix12x

[@rocketpigrecords3719]

​@@matrix12xso, it's a Master Lead on steroids... ...sweet! Master Leads are great, add some tube compression & cleans, Bob's your uncle.

[@Subilon]

I still have mine from 98.Because of modelling I don’t use it as much as anymore as my lifestyle has changed but I do love it still.I have it paired with a quadraverb and a behringer vamp pro for effects.

[@flyingstratobanez713]

I still have one, combined with the stereo rack power unit, and it sounds like heaven to me.

[@shorerocks]

I got mine from a friend, 20 years ago. I just recorded half of the lead guitars of my new album using it, powered by a Friedman Motor City Drive, and into a Marshall EL84. It is one of the units that survived whatever amps I bought in the meantime. This one will stay with me like my ENGL and the Synergy system.

[@lightningstrikes7314]

John Mitchell uses one of these and gets some amazing lead tones on his Lonely Robot albums. Much underrated player, sort of Satriani meets Gilmour.

[@tiagoramalhais5493]

Indeed, he uses a solid state Marshall 8008 power amp and sounds amazing.

[@zoomzoom3950]

Yes, back in the day I had the JMP-1 and JFX-1; main rig was the full-on ADA rig, based around the MP-1 and MQ-1, with B200S power amp and 4 x 2x12 vertical split stacks. Eventually, I replaced the MP-1 and MQ-1 with an MP-2.

[@geoarthur6593]

Still use mine from when they were released.. top quality..

[@huginstarkstrom]

I bought a JMP1 when it came out and it's still on my rack. Never had tubes changed, it's indestructible.

[@RockSiffredi]

Tubes are pretty much useless in this circuit, most of the distortion is made by opamps

[@mickbuffalo]

My JMP1 is a keeper regardless of my Fractal stuff these days. Billy Gibbons had a rack full of them as did Maiden, Def Leppard and from what I read they still use them.

[@andremessias2974]

Maiden is using Fractal III . JMP-1 setting...

[@simondickason2422]

Sounds lovely. Classic. I might buy another one.

[@brazilianjosh]

This is the one of the best gear review titles I’ve ever seen 🤣

[@HEZ63]

A classic! OD 2 could have even a little more gain and sometimes I wished to have even 0.5 steps for the controls, but apart from this an excellent, flexible. robust and reliable tool. Does not necessarily need a power amp to sound good, but you can use one of course. My favorite at the moment is one with a pair of KT77's. But alone with a good cab IR behind it can sound great.

[@christopheranderson2158]

The JMP-1 doesn’t HAVE to sound “‘80’s”. “It’s of an era” is a load of crap. Sure, it came out in ‘92...but that doesn’t mean it can’t sound like anything else. When was the JMP Plexi released? I doubt it’s only “relevant” for late ‘60’s covers as people are still using them for all kinds of stuff.....or a Fender Deluxe Reverb. Glossing over a couple presets while patched into an interface for 10 minutes is NOT a valid review. Spend a while plugged into an amp ac cab after dialing in mid-gain crunch with some delay or a touch of Reverb and THEN tell me “meh....it’s of an era”. The Two Rock tone snobbery on display here is ridiculous....🙄

[@hollywoodactress]

Great review and love the tones. I have never played a JMP-1 but I do own a ADA MP1. If I can come to one of your future "get together" studio days, I will bring it along :)

[@aynakotalaga]

I have a TriAxis and I’ll never part with it but, I need one of these, an MP-1 and a 2000CPL to complete the collection.

[@ImreImbrium]

The lick that starts at .10 is absolutely amazing. Love to hear it let loose

[@StochasticRandom]

Still my main amp. Love it.

[@Crazy_Dave]

I've still got mine. Replaced the valves with a NOS Mullard and I can't remember what the other one was but folk used to say that the valves don't make any difference but they do, just not on every channel. I still have it sitting on top of a Monobloc 9200 and that was LOUD!!! With a stereo chorus Oooo suite you Sir.

[@zepeps]

i used one touring in the 90's with a Marshal EL34 100/100 power amp and a Marshall Cab...... it was awsome!

[@DigitalDZ7]

If I'm not mistaken, the jmp 1 was used on all Deftones albums up to White Pony... it's the only piece of archaic gear I still want to this day

[@theknowerandtheknown]

At this point in music and gear who cares anymore about it sounding dated. Its awesome and i want one😀

[@sassulusmagnus]

Great demo of a cool (and now vintage-ish?) Marshall product. I had a JMP-1 back in the 90's. I liked hearing other people play through it, but somehow it didn't quite work for me. Tried the 9001 preamp too. I liked that a bit better, but what I soon realized was that I could get more satisfying sounds running a humble little Boss SD-1 into my JCM800 2203. Less fizz, more grunt. Simpler was better, for me at least. Some very clever engineering went into those Marshall rack preamps, so hats off in any case.

[@chrisdrake447]

Still got guitar magazines with adverts for the JMP-1, with photos showing the “internals” of the rack unit with “chips” in the shape of Marshall amp heads. Brilliant concept. Bought a JFX-1 with the plan of building a mini stereo rack with these two and the 20:20 power amp. Never happened of course ...

[@김윤식-e4t]

your guitar tone is awesome ~ it's perfect ..... i'm your south korean fan

[@PaulMcCaffreyfmac]

Different level altogether but way back when, I used to record onto my Yamaha MT120 4 track cassette recorder via a Marshall 9004 with pedals in front where necessary. Sounded great 🙂

[@GCKelloch]

I briefly worked at a music store when these came in. I now use the modeling made by the designer of this unit called Scuffham S-Gear.

[@rebelcat420]

They were one of the better midi preamps out there. Their biggest downfall, however was that they were released right about the time when folks were starting to dump their refrigerator sized racks for the amp and pedals type rigs. Had it come out 5 years earlier, they would have been in every LA band’s rig

[@werotheone6614]

Marshall should do a reissue, update it and turn it into easy carry pedal, that i would love

[@KelsterVonShredster]

Great video...i thought the cleans sounded fantastic! Most Marshalls I've owned all had fabulous and underrated clean channels.

[@TheStudioRats]

Thanks for sharing!!

[@gibsondcxpl85]

Rack systems were the shizzle in the early/mid 90s. I had a Rocktron Chameleon preamp and MosValve power amp but lusted after the JMP-1

[@peschedave]

hmmm...need one of them in my life to go with my other 90s marshall gear!

[@jeffallen3382]

I was looking at one of these about 10 years ago but bought the ADA MP1 instead.

[@NEBoddy]

Marshall needs to release a 30th or so anniversary edition of the JMP-1. It was ahead of its time and still a great pre-amp. I would buy one in a second and I still have two originals with a JFX-1. I've used them with Mesa Boogie Stereo 100 and the Seymor Duncan Power Stage 700.. Throw a couple effect pedals in front or something like a Line6 Effects and you can't beat it!👍👍

[@roberteismann1929]

It is a transistor preamp, the valves are in the tone circuit only. But it does sound ok.

[@marleysheredder]

I feel many folks today haven't notice that units such as JMP1, MP1 and Triaxis are just genuine high-end amp tones in rack formats. We have cutting edge (for 2024) modelers/capture boxes which provide great digital representation of classic amp tones, which is awesome. In the other hand considering such racks like outdated technology sounds as far fetched as considering amps outdated, as those racks haven been used into remarkable records for decades, records whose tones are still top notch and ultimate reference even for pros. Obviously the current digital gear sounds so good and is much more convenient than carry rack units and/or amps, but tube based racks still produce tone and feel which accurately represent amp experience. Amazing stuff such as Synergy is to me like glorified modern versions of those rack units.

[@jips123]

sounds amazing!

[@TexasJackdaw]

Would love to know your signal chain. Your Verb and Delays sound massive. I think it’s still a great unit. I sold mine years ago, but kept my Mesa V-Twin rack preamp. (I’m not using it now, but will never sell it). Sounds great fellas - and your chops are a joy to listen to. Cheers from Texas, US 🙏

[@TheStudioRats]

Cheers Texas, I’m using UAD lexicon 224 and precision delay for the fx.

[@1madaxeman]

Sold mine 4 or 5 yrs ago...still liked it then but wasn't using it. Like you said - Def Leppard, Maiden etc etc used 'em and when I hear those old albums to my ears they still sound great. I heard it said you can take the valve out of these things and they still work the same! Never tried it though so could be a fairy tale......

[@rinkydinky-ob9pe]

Gk mt250 I had one in the early 90s most superb sound ever

[@dalenicholas1984]

Great bit of kit, used a JMP1 for years. Marshall unfortunately was like about 6 years too late to the preamp party. If the JMP1 had been released around 1986, the era of the Lee Jackson, the ADA and other preamps it would have been absolutely huge. Marshall for the most part over the last 30 odd years has been the story of lost opportunities. Very unfortunate for a company so steeped in rock and roll heritage.

[@zundap100]

Yes, around 86-87 it would be killer amp, but I love that sound even today.👍

[@RockSiffredi]

As I wrote under another video, it sounds like a cross between a Valvestate and a Rockman. I had one with JFX and 9100 poweramp and didn't miss a bit.

[@elevenAD]

i have always been a fan, love em.

[@stevegardiner8473]

I used a JMP-1 off and on for twenty years or so. Still use one (virtually) in my Kemper. A JMP-1 in conjunction with something like an intellifex, or as I did for a long time, a ROLAND GP-100, is a rig that can cover most bases. It's not very forgiving of sloppy playing though. There is nowhere to hide 😁

[@TheSecondNature]

if it was good enough for Johnny A for years... I'm not sure he still uses it but it was the core of his rig for ages and he had some awesome tones, both clean and overdriven

[@januszciechanowski3073]

Pure Rock Sound! My JMP-1 is still with me, I love how it sounds.

[@Johnsormani]

I got one of these in a package deal 10 years ago. Great piece of kit. I have a few ADA mp1’s as well which are more like hotrodded Marshall ( and nice chorus) . You need to have the intellifex or a quadraverb paired to have that classic combination.

[@dreamscuba]

Cool video. I always wanted an ADA MP1, the JMP1 and Alesia quadraverb, but couldn’t afford any of them. I also wanted a 4 track cassette recorder and never got one. And yet, today I have a Quad Cortex (previously had an Eleven Rack) and I can do all of this with the QC and my laptop (with DAW)…

[@timp.9582]

years ago, before the YT age, me and some old guitar pals gathered all of our preamps (JMP, Triaxis, MP1, Egnater, Prophecy, Metaltronix). Of the programmable units, thought the ADA was best. For me overall that Egnater rocktron IE4 was best and simplest (4 channels). I recently tooled around with the idea of getting a midi preamp and came to the conlcusion that I dont want to tool around with buttons up/down/save/enter/blah blah...I'll just stick to individual dials. Nonetheless, this is a great demo on a true piece of legacy classic rock n roll gear! Thanks!

[@studioruangsvara]

Found in almost every guitar player’s touring rig back in the 90s 2000s. Paired with the 9200

[@_Caminoverde]

I used to have a JMP-1 but sold it not long ago. Have since bought a UA Lion and it's all you need

[@docf.n.t.2310]

I have thought about building a small jam rack to take to small jams, open mics, or friends houses for some time now. This could well be a good place to start. I would love having it in my home studio also, being compact and killer sounding !

[@TheStudioRats]

Nice one doc!

[@billwittman0504]

That was fun, cheers!

[@rubievale]

I had the older Marshall power amp, which was a green, 3U, heavy beast, a Boogie Triaxis, and a Quadraverb. I love my rack gear. I keep meaning to hunt out a Quad preamp because I still gig with my rack. I use a 50w, 1U power amp nowadays because the Marshall is far too heavy

[@TheStudioRats]

Nice rig.

[@klaussturh3445]

still got one of these, too. Diming the 'clean 2' channel reminds a little of an Xotic RC Booster, nice!

[@TheStudioRats]

Nice tip.

[@4Laney4]

Sounds great to me. Billy Gibbons has used them for decades in his live rig

[@TheScunion]

No matter what amp you plug into it sounds the same; that being phenomenal!

[@vincebagadonis8016]

Always wanted one of these back in my young days! got a valvestate instead....🙄 Anyway, why does no one use racks anymore?

[@EduFirenze]

My buddy had a valvestate around 98/99, it was a great sounding amp but I've never found another thar sounded as good as his

[@vox1962]

Billy Gibbons still uses one for his live rig, they’re fantastic preamps

[@jrockofages5413]

Back in the early '90s, it was down to this and the Piranha. The salesman talked me into the Piranha because it was "more versatile".

[@miketanarur]

Since you have the JMP and Paul also did some S-Gear demos, why don't guys go ahead and connect the dots. The one thing in common in these two products is Mike Scuffham. You should be the first ones to do an interview with him... (sidenote: I honestly do not understand why nobody has ever done a proper interview with Mike. He might probably be the only person in the world, who could talk about real and virtual amps on the same level)

[@gordoncrmn]

Definitely loaded with tone from where I'm sitting

[@willman100]

I wish you guys would do some clones for the HeadRush Prime and Core.

[@omarhernandez1685]

I've been playing punk and metal shows for 15 years with mine and I have my JMP-1 paired with a Marshall 9200 - It's so damn heavy... but I'm talking about physical weight. It's too damn heavy to carry around! I'M IN MY 40's NOW!!!

[@paulmapp8306]

I did have a JMP1 with JFX 1 and 9100. I sold it for a Rocktron voodoo Valve which I prefered. These days Im a Fractal man - have been since 2007, though I still keep a valve amp around (PT15 currently). Iron Maiden have used JMPs for ages - though this last tour they have finally swapped it out for the Fractal Axe-FX3 (using the JMP model ......). Cant really have a better advert for the old JMP though.

[@steviesedge]

Sounds great!

[@jasonsapp792]

And let's not FORGET TO mention the guitar you are using in this video...im not even into guitars like this and i like it!!

[@TheStudioRats]

Cheers Jason its a Nik Huber Krautster 2

[@georgealdredge2806]

In the 9000 series, the 9001 was the three valve/three channel preamp (I have one😊) and the 9004 was the solid state two channel preamp.

[@victorjimenez3005]

The 9004 was more user friendly and still very similar to Rocktrons Widowmaker. When paired with a Quadraverb or Digitech IPS units it got the job done 👍

[@sjgreaves]

Billy Gibbons and Dusty Hill of ZZ Top used these live for years too (see rig rundowns on youtube). I still have one I bought when they first came out, it was a toss up between this and the Mesa V-Twin rack but the Mesa just didn't sound good to me at all. That said I don't think the JMP-1 is that good either really and I haven't used it much. Don't be fooled by the presence of valves, it is pretty much solid state - not that that is a bad thing, just making that clear. As mentioned here, they are very much of their era.

[@stepeters]

I had one in the early 90's. Sold it after about 5 years use and then bought another about 10 years ago. Couldn't get on with it second time around tbh.

[@rocketpigrecords3719]

Both the Reverend Billy Gibbons and the late Dusty Hill use/used these in their live rigs. I've never had the pleasure...the battle of the guy who makes anything sound good vs user error.

[@ProbableCauseBluesBand]

Monster tone!!!

[@dp7256]

Did you use the Cornell Amp as Power Amp? Into Effects Return? Which effects did you use?

[@chrischoir3594]

sounds very good overall, better than a kemper or pod, fractal

[@TheTimeProphet]

I still have a JMP1 and a Marshall 9100. I use the midiverb4 effects unit.

[@deddiev1718]

The ADA was popular, but the JMP-1 might edge it slightly

[@ericjauregui3089]

I have a pair of mid 1960's RCA 12ax7's that I would love to swap the Jmp-1 stock tubes for.

[@bbiibbii58]

Great sounding ! What's your signal chain ? Is a modded one, or a factory standard ?

[@user-qr7ee2cp4y]

The jmp, like the a/da mp1 was really only known for one sound. The rest were lackluster... in some cases like white lion and skid row, they used one specific preset.

[@PedalPoopers]

I have here a Marshall Studio JTM45 Studio Rat and I love it. Simple but effective against my enemies 🧀

[@User-jk8wq]

Pretty much every guitar track on Mellon Collie and the Infinite Sadness was recorded through one of these things. Therefore it rocks!