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The PLEXI is a HARSH MISTRESS
- Published on Feb 27, 2019 veröffentlicht
- There's a lot of reverence for the Marshall Plexi, or things that claim to sound like it. Have you ever played through one? Have you ever owned one? Do you know how to get a sound on one?
I'm here to share some of my experience with owning and using this amp for over 20 years. It's been a great experience and I highly recommend it.
Marshall amps: marshall.com/
30th Street Guitars: www.30thstreetguitars.com/
Mercury Magnetics: www.mercurymagnetics.com/
Metropoulos Amplification: store.metropoulos.net/product...
Celestion Speakers: celestion.com/
Gibson USA "SG" '61 Reissue: reverb.com/p/gibson-sg-61-rei...
D'Addario Strings: www.daddario.com/
All song excerpts by AC/DC.
Comments • 455
I’ve owned three plexi type amps. They were hand wired 50 and 33 watts, and a Marshall VS20. They are all unholy loud, and live, they highlighted every mistake in a big way. There was no reverb, gain, or compression to hide behind.
Amazing video. I owned a 72 small logo hand wired (one of the last) 50 watt Bass head a few years back. Wish I’d never let it go!! Most touch sensitive amp I’ve ever played
Great tones and explanations. I have a JMP 2203 head that I had Lee Jackson (of Metaltronix amps) do a tube buffered effects loop mod on, I use the "4 cable" method with my pedal board for amazingly clean delays and modulations while in the high gain input; something that was not possible before. So now I can get all that organic Marshall tube overdrive crunch yet with wonderfully ambient multi-dimensional and undistorted delays and reverbs! Simply phenominal!
@Angus Clark great, I will do a demo of it on my channel then I'll post the link here, as a reply. Please stand by thanks.
@el guitardo that’s so cool, I’d love to hear it!
Angus, loved you're playing on Kitaro's live album, pure greatness. Loved you and Kitaro together as well, your polished aproach against his organic aproach is amazing to hear, it worked so well.
Thanks so much!
What you said at 8:25 is EXACTLY how owning my Plexi relatively early on in my musical adventures made me feel. There’s just a certain vibe and attitude that gets added to your playing when you’re used to playing a real Plexi. Peace man.
Angus you are so right! I had to wait until the family was out and no neigbors home, all because my playing was so average. But whenever I did, it felt like getting getting a recharge. Id be happy as for days after. Last year I got an Ox box. Best investment ever - those cabs take up so much space too.
I've owned a re-issue 50 watt Plexi and I loved it. The only problem was you need to turn the channels up to 5-6 for it to really sound good. Bridging the channels, of course. I also blew the transformer on mine, replaced with the same one you did. Aside from that, it's the second best amplifier I've owned. First being a Traynor YBA-1A, which I currently own. Thanks for the video!
What causes transformers to blow? Is it too much bass, or the way their stock transformers are designed? I hear a lot of Marshall owners talk about blown transformers. My amp is a Ceriatone Plexi.
Good demo....The reissues sound really good! Used to have an original 1969 Marshall 50 tremolo head that was amazing. I bought it for a steal when I was 20. I just got sick of playing it clean with the volume on 3 and still getting yelled at to turn down. Ended up selling it and buying an original 68 deluxe reverb that's great for clubs. Would love to get that Marshall back someday though....
My main amp is a 2203, but I'm really curious about whether a Plexi would be better for me. So many great guitar players from the '70s and '80s were Plexi players and the tones were legendary.
Harsh mistress indeed! I've had a 1974 metal panel 50 watter for about 10 years now. Coming from being a JCM800 guy I had a bit of a learning curve, but once I got used to it I'm in love. It's impractical and loud as all hell and I really have to be on my toes to sound good through it....but when I'm in the zone it's an amazing feeling.
Kevin Standridge yeah man, it takes commitment! Thanks for sharing and checking out the vid!
Hey dude, thanks from all of us on the heart felt rundown. Many of us bedroom rockers want to hear the realities of gear and how to get those tones. Its not as simple as it had seemed when I was young and couldn't afford anything. Thanks again.
My pleasure! Right now the reality of recording this thing at my home studio involves a $2k soundproofing of the crawlspace beneath my kitchen! And I'll still probably have to use a Fryette PS2 or similar modern attenuator box just to take it down to where it doesn't rattle the floors if I want to play it for any real length of time. Still love it. Can't help it. Rock on.
One thing that is really overlooked is the 4X12 cab and speaker type and the microphone/s type/s and position/s is ....super critical to the sound especially when everything is distorting. It can get too bright and ugly fast. then theres the room
🔊🤠👍I was surprised by the sound and feel of the first plexi stack I played through. It was not what I expected. You feel totally exposed. I completely agree that you become and must become a better player. Nowhere to hide.
That's the tone for me. It's great there are so many Marshall's out there. They really made a lot of these amps and you can get this tone like you do without buying a vintage amp. I also really love the M160 mic.
It's always fun playing with another guitarist and watching them set up an elaborate pedalboard only to have their jaw thrown to the floor with Super Lead growl.
@Marty DiBergi indeed! That, or a 70s era Hiwatt.
...help them out with dialing in their rig so both of you can have fun!
Yeah but you gotta play something that will make their jaw do that. My jaw is in the same place.
Get a Matchless and never look back👍🎸🐕🇺🇲
Absolutely amazing description of the Plexi. I'm not up to snuff to safely operate my SLP100 without a crash helmet.
Great video Angus. Im using the studio vintage, great to have a smaller 1959 type amp. Works great and sound great. Love your tones 😎
Tore Knutsen thanks so much!
Through being able to model amps on an axe fx and on a line6 pod go, I have discovered plexi's and pedals are the way to go I was all about 800's and I still love them, nothing sits better in a band and gives you the feel of an 800. But discovering that a plexi and pedal or pedals of your choice is perfect has swain me to the plexi side. I don't currently own one but the origin model I've recently grabbed is damn close and the price is ridiculous I am really happy with my rig. Sooner or later I'll get a plexi but I'll keep using the origin so I don't have to be concerned with damaging a plexi.
In my Marshall days I was using a 100 watt head. What I loved using with it was the Tom Scholz "Power Soak". Could maintain the great tone and control the volume beast with ease. Don't know if they're still around on Ebay or not but there are surely some power attenuator devices out there to use instead of having to add master volume controls. Your Marshall sounds great!
@Angus Clark I was looking at a couple of ads for Tom Scholz power soaks on Ebay UK just yesterday, so they still come up, and look to be well-made, too. One of the sellers had photos of the interior.
Steve Leavitt thanks!
Have a 1987 small box jmp Plexi from 68 with a 69 cabinet. Sweet stuff. Amazing how all the Plexi players in 60’s all sounded different on the same amp. And at the same time sounded fantastic.
I have a 1974 mk2 and an mid 70ties Stramp which is a Plexi Clone. Both are without Master and insane. With a good Pedal you can really get this incredible ACDC Sounds. Love these kind of amplifier.
I had a 1966 JTM45 and a 1968 50 watt Plexi and they were both glorious. They are both gone now but they were incredible amps.
Michael Craig It was a 1968 50 watt JMP. The ‘66 JTM45 that I had was from the studio of Herbie Herbert (Manager of Santana and early Journey). The ‘68 was an amazing amp. I have a video on my Clip-Share channel of the JTM45 but I don’t have any clips of the ‘68 plexi. I sold those two amps and then had a 1978 100 watt JMP which is hard to beat for a bare bones rock amp, which is also on my channel.
What model was the one made in 1968? I thought the JTM-45 was the 1st plexi?
Great video. Very useful info. The JTM 45 is a bucket list amp for me. 🤞🏻 one day I’ll have one. Thanks for posting.
Yes, there's no where to hide. I had a '68 Plexi and it was very harsh and loud, even for a 50 watt. It was not the best sounding one. My brother had an early '69 metal panel and it was way better sounding and user friendly. It had that Electric Ladyland Voodoo Chile Steve Winwood tone. So all Plexi's do sound and behave differently. I've never heard a reissue that sounds like an original Plexi.
All great advice & stories Angus. I got my first real amplifier back in 1976 (a brand new Fender Twin Reverb). The only reason I ended up with the Twin was because I didn't have enough money saved up for the Plexi Half-Stack sitting next to it on the display floor. I was 14 years old at the time and had worked multiple Summer jobs to save up the $400 for the Twin. I always wanted that Marshall though.
Fast forward +40 years, I'm still playing through that Twin Reverb as well as a few other vintage amps but still no Marshall for me as I just didn't need one for the playing I do.
So I decided to place the 1987x on a Bucket List and picked up a used/early 1987x with a nice Bluesbreaker extension cab loaded with a pair of greenbacks. I've since replaced the Transformer, added a PPI MV and in general just kick myself for not getting one of these decades ago!
Couldn't be happier with this amplifier. She does really need to be played loud and in that respect I'm blessed with a home studio that allows both the Twin Reverb and Marshall to both be run dimed out.
I laughed at your comment about being naked, so true. After all of these years of playing being naked is a somewhat normal feeling for me as this small box Marshall is every bit as loud as my Twin. Anyways, I've gone on long enough. I subscribed to your channel, thank you for the great content.
thanks! I see you found this vid!
If you watch live classic rock videos, you’ll see what makes them sound good is how cleanly they play, and they mute well
Played a JMP-1 with JFX-1 into a Valvestate 8008 power amp with a Marshall 1978 4x12 with black back Rola G12H30s. It was a good rig (the cabinet is amazing). I never fully bonded with it (lots of op amps in a JMP-1) but the flexibility was a nice trade off. Played it for ten years. Went back to tube amps. I have a 1990 JCM 800 Super Lead 1987. Great amp. I like it just as much as any of the classic or reissue Super Lead amps I have heard or played.
I’ve had quite the number of Marshall amps over the years. Metropoulos, Germino, and the usual suspects. The 1987x is a great amp. Probably one of my favorites along with an old 2204.
Gary Jarvis how was the Germino? I’ve heard nothing but great things about them. So expensive though
Cool video. I've been getting into The SG/Marshall thing too.(Dsl40cr) at one time I had a 1987x it was
awesome but in my situation I couldn't use its dynamic range. The NMV Marshall are a completely different feel like you said!! The punch is massive!
@Cary Boudas thanks for the clarification! Yes, the NMV amps have the punch!
I meant Non master volume
Thanks Cary! I don't know the "NMV" designation? A buddy of mine has a DSL which he had re-tubed and Blackie changed out the bright cap on the gain channel to bring it more in line with an old JMP. It sounds amazing, not as precious as the JMP, and the effects loop works, so it's a total win.
I think your commentary about buying used gear from a local retailer that also acts as a musicians hub being a place to give your business was absolutely spot on
@Angus Clark ,you are welcome. Everything you said about these mythical amps is true, they are not all sunshine and roses yet they can dish out a spine tinglingly great experience. And I totally believe in supporting local business. I calls em as I see's them.
I bought the new studio version and even that was too much amp for me. I had no idea how to tame it, and I'm not a very good player, anyway. There was too much volume and nowhere to hide, so I returned it. I regret that, but then again, it was so loud.
Absolutely right; with a plexi there’s nowhere to hide lol
Practicing with an acoustic helps
An acoustic plugged into a plexi is an interesting experience. Clean and with the right settings makes it a good acoustic amp.
@Ryan S what you said.
Also, +1 on the advice about acoustics. It's like running with weights!
Too true I use 12 gauge strings on an acoustic to practice and playing increased drastically once I started
@Rasmus S they have very little natural compression. They are very "present", they don't squash your signal much at all. Every noise you make with the guitar is clearly heard, good or bad.
Modern Amps compress a lot. Making them much much EASIER to play through. You don't hear minor sloppiness in your playing.
If you put it on 10 and get a little boost in front of it, it isnt too bad.
I have a 1987x with factory effects loop. First time I played through it with jumpers was a "that's it!" moment - no reverb or effects. Same even when "clean" although that term means something different on these amps. It's exactly that raw immediacy that I like - even though being, as you say, naked. That's a good thing eventually.
The reason for the quick volume jump is the 500pf capacitor across the bright channel volume pot. When I build them I use a 250pf and it really helps make the amp more manageable. I am a Mercury dealer and yes, there products are excellent.
Absolutely true about revealing every little mistake in your playing! I have a 1980 1959 MKII Superlead NMV that was getting some weird ghost notes and weird phasing sounds when doing long slow bends etc. Figured the original capacitors were shot so I replaced the big power section caps & while I was in there put a Point to point turret board in it with all fresh Sozo preamp caps, new resistors, set the bias etc etc.. the thing is So clear, warm, crunchy, sensitive to touch and natural sounding... it hides NOTHING. Painfully LOUD amps!!
Jim Hinson It’s a journey with these amps but when you give it some love its all worth it, as you know!
You are 100 percent spot on about this amp making you a better player. When a mistake is made- it’s OBVIOUS with these amps (unless you have loads of effects running) .... so my opinion is that you better get used to it before playing out ... because it can make a good guitar player sound not good at all!!!
For example , a player may sound like a 10 on a Princeton reverb, but sound like a 5 on a plexi!!!!! I know 😉😉
I think they take time to adapt to. When I switch to a more forgiving amp I find myself working to try to pull the Plexi tone.
THANK YOU, THANK YOU, THANK YOU!!! I can't believe I've owned a JTM45 for so long and never knew about/tried that low input trick for playing at low volumes. With a pedal, it sounds AWESOME. Life changing. Wow.
GCKelloch I’m sure, and as I say in the video, there are a lot of great builders that make amps that sound “like a Marshall Plexi” but they’re not. Actually showing up with the genuine article comes with a certain aura, and hearing loss, financial woes, and heartache. That’s the point of the video, right?
Johnny Navarro glad I could help!
Nothing like a Plexi! Sounds great!
Plexi's sound different through the years. Marshall was a nickle & dime operation back then. They sourced their parts from the cheapest parts/vendors available. RS transformers were off the shelf transformers (1962-65), then Drakes (1965-68), then Dagnalls (1967-72?) with plenty of overlap & variations (plus other vendors).
Great demo, you’re a gifted player, and nothing beats that AC/DC classic rock tone.
Gibson SG + Marshall = Rock n Roll Heaven.
Haha fun to see here the same stack of Blackstar and Marshall standing at my home!!! :)
I made the same experience with the jump on volume controls but later used a volume control on the fx-loop to get rid of it.
To play a Marshall purely with a Guitar is unbeatable. Such sweet tones, dynamics and response, but it also rubs your fails directly into your face and forces You to play accurate, as You described it, I totally agree!!!
That Marshall is a very good instructor... :)
From the issues You explained, I'll be warned to play it cranked up completely for a longer time, thx for that!!!
Btw: like AC/DC and from only listening to Your licks can't say its the original or not... :)
Plexi always have that in our face tones ... i used to be a high gain amp player for 25 years, but switched to the angry growl of the Plexi.
I own three 100 watt 1959 model Super Leads from 1970, 1973, and 1974. They're incredible sounding amps and they are incredbly LOUD.
OldSlowGamer no question who the loudest guy in the room is!
Have had a early 90's Marshall 1959 Reissue SLP for about 10-12 years. Absolute amazing tone but so, so (so so so) loud. Had to get an attenuator to keep it reasonable at home and most gigs. I use a THD Hotplate that has done me well. Important to keep your servicing up however if you are gigging with it. I prob use my Deluxe Reverb more now because I gig less and play a lot more around the house (w/ wife and kids). But nothing will beat those large stage mic'd Marshall experiences.
Adam Pipes Amen brother! I have a THD hotplate collecting dust. I always felt like it did something more than just make the amp quieter. It made the amp go from being solid to porous, like there was no density to it. Suddenly I was getting masked by the cymbals and whatever else was going on in the high end. So I just stopped using it. I had a Deluxe Reverb as my small amp for years! Parallel lives my friend.
Killer tone. Do you still play live w it? You didn’t mention attenuation, cab sim, or iso box. Would be interesting to know what you’d recommend to your “same self” if you wanted the same tone and were starting in today’s lower stage volume demanding world?
@Cliff Gold Thanks!
@Angus Clark mine has been back in its box somewhere?? for years.
New to your channel and just been checkin out some of your other clips. Love your playing style...getting Blackmore & Sykes vibes..really cool..!
cliff gold haha! My THD has been serving as a door stop/paper weight for 10 years!
@Angus Clark Fryette PS is the way to go. Tried the THD with mine but it didnt like it at all....sounded crap and blew fuses. Hard to get the PS in Australia..still looking. Great video Angus..!
Dan Brian thanks, it might be worth checking out, I’ve heard good things!
Great video, Angus. I'm a long-time Hot Rod Deville player and it's sort of defined me too. and I don't really like me ;) Now I'm thinking of getting back into Marshall (this or the SV20) as I love the cleans as well as the "concussive" punch you talked about. But tell me, is that "concussion" the plexi or is it perhaps a 4x12 cab going with it? In other words, pushing it through a 1x12 is more likely where I'd want to be... Thanks!
@Angus Clark Hey Angus, thanks for you response. I have pretty much decided on the SV20 (unless I try to build my own Plexi). I agree that every video I've seen shows a great tone, including cleans and edge-of-breakup which are important to me! I'm actually building my own 1x12 cab right now, experimenting with some different tone woods I have hanging around, and eventually when I can actually access other woods, I'll build a an out of baltic ply for comparison.I absolutely agree that minimal a 2x12 would be ideal, but for health reasons I'm focusing on reducing the weight of my equipment, starting with my amps and cabs ;) On the other hand, if I can make a 2x12 cab light enough without using neodymium speakers I might just try that! Stay safe and healthy -- my thoughts are with you and New York, I spent 12 years of my life living around there!
Tony Knight hey, if you want to use a smaller cab I think the Studio Vintage is the way to go. While I haven’t played it myself all the clips sound awesome. I think you could get a great result with a 2x12 bluesbreaker type cab (I have a mojotone one) and Celestion Heritage G12’s. I think a one twelve lacks low end, it doesn’t get you there.
A bit of advice for anyone owning a Plexi, or planning on owning one.... Remove the rear panel from the amp head. Why? These amps run a bit hotter than most, and are poorly vented without top vents. The ventilation grill on the back is small in comparison to other Marshall amp heads, and don't allow for good convection air flow. After playing mine at moderate volume level for an hour or so, I noticed that the rear and top of the amp were hot. After removing the rear cover I placed my hand on the output transformer, and you could fry an egg on it. Smoking hot. Have since been playing it without the rear cover and everything (other than the tubes of course) has been just warm to the touch. Night and day difference. No doubt this has an effect on the life of these amps.
This why I bought a metropoulos metroplex, you get the plexi tone at low volumes, you don't have to crank it all the way up.
Great thoughts sir. To your question, in 20 years of playing this year, I can say confidently that most players I have met have talked about the sound of this amp, but have not plugged into one for themselves, so they don’t have a real reference point. Pretty sure only a couple of pros that I know have played one, or good examples of vintage guitars like ones from the fifties. I have only been able to play one once at Chicago music exchange, and it was amazing to play with this huge sound, but not practical at all for someone like me. Amazing sounds though! Nice video. Peace!
Sound that hits you in the chest! That's how you know you're doing something right.
Nice video! At 07:12 U talk about channel bleed. First time I heard about that was in an interview with Yngwie Malmsteen’s former sound guy (Pontus Norgren). Pontus said that Yjm uses the treble channel only but turns up the bass channel which bleeds in with sound.
I've owned and played about everything and I knew as well as all my friends telling me "dude get a plexi and be done with it".🤘💪🎸
The 1987 reissues are especially harsh. Fantastic amps once you get used to them though!!!!
"it takes from you any hiding place" Truth.
For an even more "no place to hide" experience, play a Telecaster through a Plexi. Or a Hiwatt.
One thing that lots of players don't know is that the old 50 and 100 watt plexi panel amps get very nice clean tones at low volume.
Nobody buys a Marshall for it's clean tones..
You are so right. They are magnificent!!!!!!
If an amp allows you to hide its usually lacking in some key part of a sound your looking for. What ever that sound may be, or it just doesn't sit in a band mix well. Some genre's don't need the guitar to sit perfectly in a mix but it is alot bets when it does. It's that old saying I ain't saying it will make your pecker grow an inch but I ain't not saying it will make your pecker grow an inch.
Cool video. Good honest info. Great playing, sound and great solid advice. Thanks.
Trevor Bannon thanks man!
just wanted to say that if you play the model 1967 200w bass major plexi,...the sound is quite a lot smoother and not as harsh 🙂
Great info, we need more of these videos.Thanks man!
I also had a non-MVolume JMP in the late 80's made in the 70's. I got it with a blown power transformer. Good amp but one dimensional even tho it did that one sound great.
The actual plexi was not an original Marshall product but made by Ken Bran, Jim Marshall's repair man. The design was stolen from late 50's Fender Bassman. Check the old schematic and compare. They are identical. Fender amps were very expensive in England so Marshall had Ken making them in the repair shop of his music store.
Fender changed the topography of their preamps in the early 60's to a cleaner sound by putting the EQ after the first triode stage rather than after the third triode as in late 50's. They also got rid of the emitter follower feeding the EQ section. The sonic differences are notable. The original design is very basic. Almost anyone with soldering and able to read a schematic can easily build one.
30th Street Guitars was the best guitar shop in NYC...is still great, and have a great boutique pedal collection, but when they moved to 27th street they had to downsize and no longer have much of an amp collection.
I use a 1959 reissue (2007) attenuated with a Rivera Rock Crusher and it sounds beautiful, RC does a great job of holding the tone and taming the beast. The difference between the Lead (1987) and the Superlead (1959) in volume difference is nominal, about 3 dB, that's it...the difference with the 50 watt Lead is it has less clean headroom, that is: it takes less volume before you saturate the tubes and it begins to overdrive. Plexis are just tone beasts...sweet spots all over them. I like the effects loop in the back of the reissues, I run a rack mounted reverb through it...but it takes pedals in the front beautifully.
I was lucky enough to own one of these in the seventies, I also had a 100W bass head and a regular 100W plexi too, sigh... don't have any of them now. And yes my hearing has suffered.
I'd love to hear and see more videos like this. Articulate, knowledgable and chops to boot!
I own a JTM45 and while it sounds wonderful it doesn't have that Plexi "thrak" you've got going on here.
Michael Craig I picked up a used bluesbreaker for around $1300 at GC online. It’s the JTM 45 head in a combo form with tremolo. Love it.
@Angus Clark well your hooked up with techs who know those amps! It,s great sounding. There is a guy from Canada that is an ace amp tech. His name is pat furlan. He is an expert at modding fenders, marshalls and traynors. He has a youtube channel. Also nik from ceriatone makes top notch marshall , dumble, train wreak ect amps . All built up or kits. I,m an amp lover but spent fourty years of my life as a working drummer!! But i love the old amps. Oh and if the amp isn,t built up handwired it,s not kosher. Better to just get a clone!!
Hey sorry I didn't see this earlier. I'm not sure about the lineage and all that. They're all a bit different from each other. I didn't get in this to chase a unicorn and buy a vintage amp. I just liked the way this amp made me feel. If you want to see/hear all the vintage marshall amps on line go to Johan Segeborn's channel. He has everything. I think Clapton with the Bluesbreakers is a JTM45 with a treble booster. It's a great sound. I think Hendrix live was more the SuperLead. Angus Young is more of a "Metal Front" SuperLead (later than the Plexiglass front amps from which the name is derived - but still called "plexis" because its a non-master volume amp). But that's about all I know!
@Russell E Simonetta snubbing the 59 bassman that the jtm is based from?
@Russell E Simonetta Allman Bros is my favorite band when Duane was there. OK so tell me all about these amps!
Love me some Plexi!! I had a 74 pre voltage drop, but with circuit board...the hybrid!! I loved it...regret moving it!!
The reason the HI treble channel affects the LO channel is due to the way the amp is wired, so the bright circuit on the HI channel volume control acts as an adjustable treble bleed on the LO channel, somewhat similar to the way the tone control works on the guitar. Both volume controls are wired in parallel into the next gain stage, and are not isolated from each other, unlike more modern designs which typically would have a switching circuit to remove one channel's control's from the signal path at a time.
Great explanation I hear you. I want to get one. I had two in my life but when I'd play gigs they'd fail and never make the whole job. I still wants one bagginses!
I still use a JMP-1 along with numerous others. I think it'll exceed the 74 JMP 50W, based on flexibility. It has more gain, and the volume is controllable. Its also MIDI switched. I have it connected to Marshall EL34 50/50, Mesa Stereo 2:100, and Peavey Classic 50/50 for 34/6L6/84 options. I like the JMP-1. That said, the old Marshall is loud, has tons of bottom end, and records amazingly well every time. As though they tailored one killer voice, at one loud volume. You sound GREAT man! Love the ACCA DACCA.
Jmp1's are the dogs bollox, they nail every marshall tone on the planet
Prob the best argument for the JMP 1 is Billy Gibbons. He's used them for a couple decades now. He runs em through Valvestate power amps and his tone is, of course, great. I've never played a JMP-1 but I've owned ADA MP1's and they sounded amazing. However, I had to use an 800 watt solid state power amp to get close in volume to even a 50 watt Marshall. Tube power is a beast!
Solar Guitar Studio Thanks!
Hey Angus, awesome vid man! I own the XL (has the loop bulit in) version. Wanted to gig with it but got a little alarmed when you talked about all the repairs you have had to do on yours. In your opinion Is this amp reliable?....or were you just cranking this baby on a regular and blowing shit up?! I appreciate your imput as I have some gigs lined up in the near future. Any suggestions are welcome. Blessings and Rock on Bro!!
@Angus Clark Right on, Thank you !!
HamsterSpanks The buld quality on the mew stuff is really good, go for it! I was just trying to say that tune amps are problematic by nature - and worth it!!!
this is one of the best demos/ explanation of Plexi style amps. Thanks. 🤟✌👆🤘
What's sad is every time that I hear a popular song being played on guitar the first thing I think of is "that video is demonitized" 😕. I don't listen to mainstream music myself but I know the music and I feel for all you guitarists that are getting hit with strikes.
That’s not an issue for me so please don’t let it affect your appreciation of this performance. I make my money on the gigs I do.
Your Plexi sounds great btw. You def got that Angus tone happening. Rock On!
I’ve never played a real Plexi. But I have a Friedman smallbox and I LOVE the plexi channel on it.
I’ve only played one and it was so bright, loud and harsh I would never play that thing. I’ll stick with my JJ Jr.
Hey Angis, The way you turned The High Channel up meanwhile being plugged into The low Channel, do you know if this works on all plexi’s?
I bought a 1959HW and found it to be either too bright or too bassy as you rightly pointed out.
Great video though, an eye opener for me, and Definately a morale booster for playing more with pedals through my AMP (if this trick works on my AMP ofcourse)
Angus Clark I’ve Got 3 boards, a small one with all The essentials (ts9, dd3 and a RV6) The same pedals with The 2 two others, But They are larger with modulation effects and distortions (t-rex, boss and Carl Martin)
- thoughI’ve been trying to play with a budget friendly collection of pedals; Tried out The Mooer Red Truck - everything is usable when the sweetspot is found 😄
@Andreas Sabat Good to hear! I'll probably do a video with some sound samples of me using pedals through it that way. Which pedals are you using?
You’re a savior, this works like a charm! So glad I stumbled upon your video - subscribed!
Andreas Sabat let me know how it goes!
Oh, I see that I wrote Leon, my bad. It was addressed to you so, Thanks for The answer
I’ll pull The AMP out later this week and check it - cheers!
Greetings from Ireland, enjoyed the info, thinking of going for the 20w version, even that might be too loud for home use 😂
Hi I'm absolutely in love with these things! Never understood from which came the name of 1987 and 1959 of those ampli since they where made in the 60's and 70's... 🤔
They are just model catalog numbers supposedly with no inherent meaning. Like for instance there's a 2061, 2203, etc
Awesome demo! You should demo that EVH 5150 as well! :)
@Angus Clark Awesome!
Brage Størkersen thanks, yeah, I will!
Harsh mistress, but sounds glorious in hands of a master like Angus! Thank you so much for really great video!
bigbokiptd thanks so much!
If the Plexi sound is what you like... Would you attenuate it down to a quiet level or get a master volume amp?
I'm beginning to believe there's no just replacement for the Plexi.
don't let the master volume mod deter you, I had this same amp and moded it with a MV mod and I ended up putting an extra tube to give it a bit more thickness. great amp turned to awesome after it was modded to my liking. Classic rock style player.
I had a master volume in this amp for a minute but it ruined the sound in my opinion. As did the attenuator I bought.
Very well articulated. What are your thoughts on this circuit in comparison with the dsl?
@Angus Clark I played a mig 50 in the 90s which was pretty true to my bassman which in turn is true to the sv20c. Think I'll just buy a dirty Shirley. 🤪
@Vagen Dullish All the Master Volume circuits lack the immediacy of attack and the dynamics of a plexi style circuit. Doesn’t make them bad as it is totally subjective. Functionally, have not been a fan of the DSL. I liked the 2000 TSL because you could switch between the clean and crunch with a footswitch. The 2000 DSL had the clean and crunch as two gain levels on the first channel, so you couldn’t switch between them. Then the new DSL didn’t seem sound as good as the JCM2000 version.
However, I have since used both versions of the DSL on rented backline gigs and I liked them. I have a pedal board based on an LPD87 that I can run into the clean channel and it crushes!
Great rundown. You're right about what these things will do to your hearing. Wear "protection."
You can get any sound out of a plexi if you know what you are doing. Best amp design of all time.
Really? Wow. You can make it sound like a Boogie? Rectifier? Bogner? Soldano? Fender Twin? AC30? And here I thought they only sounded like a Plexi.
Really appreciate your vid. I am an older player, not a pro, but make my own recordings of my own stuff. Ive always played on fender amps, solid state then tube. Ive recently purchased the Frampton custom pro copy and have been eyeballing the studio classic heads and cabs that Marshall has out now. Im really drawn to the Studio Vintage Plexi 20 watt. Do you have an opinion on the 20 watt heads? Im also looking at attenuators, not the ox, i dont have that kinda bank, but something decent to keep my neighbors as friends. Thanks for your video great info.
@Angus Clark Give the powerbrake a try if you ever get the chance. Obviously too much attenuation will never sound good, but live and rehearsal levels it was fine. I've now got a modded 1959 with a ppmv...and can't believe how good it sounds.
stephan guisseppi I only had the hotplate. I never liked it.
The Marshall powerbrake is a pretty transparent attenuator. I preferred mine over the Arracom and Badcat ones I tried.
Of that studio line the classic is my fave. Sounds great in all the clips I’ve heard. Thanks for tuning in!
This dude & i have a very different opinion of a bone crushing tone! In this day & age just pick up a JVM for "that" Marshall tone! It pretty much covers every relevant Marshall amp!
PatientMental to clarify: I say the “volume” jumps to bone-crushing - which obviously doesn’t translate via youtube. The tone is what it is, vintage power section and speaker breakup. Classic for sure, not as brutal as the modern amps. But it will rattle walls!
Well you’re right up to a point. But a as they say a jack of all trades is master of none. All that extra circuitry is taking away from the signal.
I went down the channel switching amp route but they never sound quite right. Now I use a Jcm 800 and just the guitar volume. Best tone I’ve ever had.
Awesome tone Angus...love the SG Custom
You are correct sir they are so loud that any mistake is out there!
I'll stick with my JCM800 4212 combo. It's a beast. I've never had the master volume anywhere near all the way up, and I've never had to mike it up at gigs. It's never let me down in 30 years of hardcore metal playing. I've only ever had to retube it occasionally from new. After years of abuse, I did take it to Marshalls at Bletchley (just up the road for me), and they replaced the tolex, the speaker cloth, the logo, the feet, the corners, the knobs and the handle. It still has some battle scars, but it doesn't look like a derelict.
Do you know if they also do maintenance work for the circuit?
i use mine with a Fryette Power station. cant beat it. Also have put two transformers in it over the years
I built a jtm 45 clone. At least I think I did. I just bought a bunch of parts online and slapped them together. I nearly shit myself when it actually worked.. It's got it's quirks. Very bassy but cranked the mofucker will drown out a drum kit and make your hair stand up. Never played an actual plexi but I'd like to just to compare and see how mine stands up. There's definitely a reason why so many great guitarists play them from Angus to frusciante.
If your tired or just not into playing it will show in your playing. In a soldonal high gain type amps you can get away with little mistakes.Maybe why eddie gave up his plexi
Sadly that's Exactly why he gave up the plexi, he needed more gain as his chops were fading
I have only bought a couple new pieces in my time playing guitar...not a professional so I always gravitate to used gear myself to justify picking up something....I do a fair amount of trading also
Another reason to buy used gear and the main one for me is the environmental benefit of reusing something instead of making another.
Hey jw does the normal gain have a "phasey" sound to it? Or does either gain sound different when played together Like it's moving in and out of phase?
Not that I have noticed.
Fantastic video! I love the real-world information. Could you a similar vid about the 5150?
KC Thanks again!
KC I’m not in the market but thanks for the tip!
Bryan Blevins I am planning to. I haven’t turned it on in a while, it may have to go in for servicing.
Volume pedal in the FX loop is a great bedroom hack as well.
Playing a Plexi isn't irrelevant, just ask JD Simo. You rock!
I thought he switched to a fender something. I witnessed a show with his Plexi and my ears were ringing for a few days.. Rock n Fucking Roll!!!!!
Soldano are the same...so clear and articulate, nowhere to hide. Forces you to raise your game.
Plexis can sound like crap because of not having the ideal component values. Bright cap, NFB etc. It can be very personal and very specific to the gear you use with the amp, guitar pickups, pedal, speaker etc. You can have a plexi style amp that sounds like absolute garbage if the output transformer isnt reacting correctly to signal coming out of the tubes. It can be extremely spikey and harsh if the transformer isnt absorbing/cushioning those voltage spikes. But if you have some really dark speakers and dark sounding guitar/pedals, more brightness could be also desirable.
I haven’t had that problem
I got mine just 5 days ago, and fell in love.
Simo Lucketts congratulations!
What is the difference between the 1987x and the JTM-45? What types of musical differences are there?
@Moby Dick that’s a great question. The JTM45 is only visually different from a small box 1987 or 1987x (the reissue) in that the “Marshall” logo on the 1987 is white, while the JTM 45 is gold (white plastic with the face painted gold).
Tonally I think the 1987 is brighter and has more gain, particularly the metal panel models which came later than the plexi-panels. I don’t know the technical differences in the circuits, but I always found the JTM45 to be a really dark amp. So I think there’s probably something regarding the bright cap in the 1987. I also think the JTM45 has a tube rectifier while the one in the 1987 is solid state. I hope that helps!
Fantastic vid! Thanks for sharing. Love that tone.
Erik Truss thanks man!
When you crack them you can control the gain with your guitar volume rolled to 6 or 7 8or 9 for solo
I really enjoyed your video, very informative and entertaining at the same time! Moar please! :-D