The Marshall Amp with the most Fender-TWANG! JTM30

In this video I demonstrate a mid 1990s Marshall JTM30 2x10 combo with stock Eminence Heritage speakers. I'm playing it with a Gibson Les Paul 1959 Reissue. This amp has a beautiful, twangy Fender-like tone.

[@torarinvik4920]

Johan Segeborn is the Mythbusters of Marshall. The cryptkeeper of secret sounds. And the librarian of rock technology!

[@JohanSegeborn]

Cheers my friend! ;-)

[@crflores76]

I’m agree....

[@bishlap]

holy haliburton, Batman!!!

[@tiptizlode4995]

Agreed

[@cannedmilk]

"Alright, let's go.." My 3 favourite words 👍

[@andreacampana4754]

Both JTM 30 and JTM 60 are great sounding and underrated amps, good clean sounds and that "roar" that is missing on the modern Marshalls. Great video by the way!

[@nickm6001]

I was literally looking at these today, now that you made a vid the price is gonna jack up

[@vpsaxman]

These are affordable because they have overheating issues. It's fixable but do your research.

[@kimhansen6384]

Don´t!

[@joeysgear1419]

I can't believe the legendary Johan is reviewing my measly jtm 30! I actually love the clean channel but I never thought it would be on this KZbin channel. Interesting enough, mine is in the shop right now having a modification done to it.

[@JohanSegeborn]

Thanks my friend! :-) I really liked it

[@USDAselect]

I love the twin speakers, you don't get it these days in newer Marshall combos. Those cranked tubes and two speaker combination must sound awesome with a delay pedal. Is the reverb digital?

[@joeysgear1419]

@@USDAselect nope it's a real spring. I actually have the one speaker jtm 30 though.

[@USDAselect]

@@joeysgear1419 Wow a spring reverb on a Marshall. I'd definitely buy them if I ever came across these.

[@auntjenifer7774]

Look out for the jcm600 heads, same amp, higher wattage and it's a Marshall head that can be found pretty cheap 😉

[@tns4421]

The lead tone is 100% 80's original heavy metal made in the UK and I am blown away......what a tone...very organic and the clean sound is beyond...thank you!!

[@andytraverse]

Great amps, I've owned mine for nearly 20 years (a 2x10") I don't use the overdrive channel, the clean channel breaks up nicely for the classic Marshall valve sound, then push it with a compressor or overdrive pedal if you want more gain(I use a rat pedal). I use a Marshall powerbrake with it ,with master volume on full to get the cranked sound at bedroom levels. Its been pretty reliable apart from a couple of pots that needed replacing etc, 3 cheap repairs in 20 years. It gets hot but never been a problem.

[@RokDAWG1]

I’m really impressed with the clean tones & even with the hi gain tones! It’s really awesome and not too far off from modern tones. I’m sure a pedal in front would get the modern tones easily enough.

[@jamiegustkey2573]

This has a little early Crüe sound!!! Sleeper amps! 🤘🏻😁👍🏻

[@ProSimex84]

Yeah that's totally the Live wire sound!

[@auntjenifer7774]

Yes, and if you ran cl80 Celestion speakers it will sound just like slash appetite tone !

[@jplew138]

I was thinking the same thing...

[@JohanSegeborn]

Check out these Sleeper 90s JTM30 and 60. They can still be had relatively cheap

[@peterverschage8347]

Had a JTM 60 3x10 in the end of the nineties...Weren't very popular.Sounded a little too thin for my taste...

[@torarinvik4920]

Definitely going to rise in price as time goes by.

[@JohanSegeborn]

Yeah, this unit is only $400. Its for sale at 4Sound Gothenburg actually.

[@lcpholman]

I currently have a JTM-60 2 X 12 combo. Never was able to get it loud enough to sound like that :) In need of repairs, but is handy as a speaker cab for my fender bassbreaker.

[@auntjenifer7774]

Can you do this with a Telecaster and maybe some P90 jr's or special?

[@christofferainek]

Phew, sleepers indeed. Sounds great, but then, everthing you play through sounds like a million bucks🤘

[@jcoulter43]

Another hidden gem from the 90's! You do make everything you play sound great. Rock on bro and God bless!

[@JohanSegeborn]

Thanks brother! Cheers

[@doctorskull8197]

Johan, your demos are fabulous! You make everything sound Rockin’ and kick a$$!

[@jimsy5530]

No, his demos are rubbish - Johan raises my expectations for every piece of equipment with his playing, then when I try out the same amp, it just sounds like blowing air out of a floppy arsehole.

[@gitarkatili]

@@jimsy5530 Lol same man Johan please stop making awesome demos

[@gitarkatili]

And I don't even try any gear before saying this!!!

[@fastacesus8499]

Always look forward to 'Let's Go'. Wanted to hear one of these amps for a while - thank you.

[@danielakerman8241]

I used to have the 1x12 version of this. Was my very first amp. They have a reputation for overheating, and mine had a really bad problem with ringing at high volume, but it was a sweet sounding thing.

[@FastForwardFolkert]

I have the same 2x10 jtm30 for years and I never had any issue with it, no overheating whatsoever. Just make sure you use proper 5881 tubes and check bias. Mine run at 17W idling power per tube. The amp is used biweekly for a few hours and I love it! Recommend if you find one!

[@shaunw9270]

I own a 210 like this & the 112 Celestion version. They often suffered major issues from overheating , being fixed bias and having a poorly designed cabinet with inadequate ventilation. For all their shortcomings ,I love these amps . I play them at lower volumes in my living room and have always liked their almost Fender clean channel , the 5881's may play a part . The 112 gives a distinct "bloom" to the note , with a lush bottom end & a very direct projection of the sound. The drive channel is kinda muddy at lower volumes, so that's when I use the 210 as the clean channel breaks up quicker and the drive channel sounds more "open" & less directional. Currently my 210 is running way too hot & the 212's Reverb is knackered ... not ideal , but they sound amazing . I wouldn't suggest people try to gig these as a reliable amp in 2019 but for a studio or at home player ,it's a cool little tool that makes more sense than buying another pedal. 😉👍

[@Sauerapple]

Own a NOS 1x12 JTM 30 with matching 1x12 ext cab I picked up for a song in 2001. It’s the one amp I’ll never sell. It’s fendery enough in the clean channel and enough Marshall crunch without the fizz of high gain Marshall’s. It’s like a Fender Bassman and a JCM800 had a baby. Killer amp. Had an opportunity to pick up the 2x10 years ago. I passed and regret it.

[@4CloudySky]

Sounds thick, and mids are fabulous. I love 10 inch speakers.

[@OzJazrok]

sounds awesome!! are you going to demo the new Marshall studio series? SV20 and SC20?

[@bluenosemassmedia2996]

So fine that you are so perfectly set up to put up a side by side comparison on virtually anything at a moments notice. Keep on pickin’. greetings from the coast of Central California

[@CockySoupNazi]

I used duct tape tin foil that is put on heater ducts to reflect the heat away from the amp, directing the heat back to the tubes. Never had a heating problem, or issues. I bought a JTM30 for $350 off a friend years ago, and it still kicks ass. It's my go to amp.

[@dobarron123]

Just bought one for 350 and i am going to do the same!!

[@dobarron123]

Just to get ahead of the overheating problem!

[@fattyu23]

Johan, You are a tremendous help and your hard work and effort is much much appreciated. because of you I found the tone I was looking for. keep it up!. also I know you are deliberately not giving much opinion on the tested things but I for one would appreciate your thoughts and opinions as well for example when testing many speakers.

[@jplew138]

And maybe the best clean channel I've heard on a Marshall.

[@bluesbenganblues]

Lovely! Clean channel on full is fantastic! PLEXI! I just love my (slightly modded) JTM60 1x15 and JCM600 2x12! Check out Johan's clips of them! JTM30, JTM60 and JCM600 are wonderful amps! Full of classic Marshall tone!

[@marccarter1350]

Shocked by the clean sound. Wish there was more of that

[@plonky17]

I have one of these and it is very versatile. Great with pedals.

[@mitsu7909]

I use Boss and digitech pedals. ... 400 eur at muy city. IS good for home? Todo Big mayo bee

[@DTM-ch7jy]

I had a JTM 622 Combo in the mid-late 90's. It was the best sounding Marshall I've ever played through. Too bad the amp didn't last long. It had a design flaw; the tube position and the thin steel chassis made it easy for the PCM board to get heated up and fail. It was in the shop more than half the time. The Marshall company took it back and sent me a JCM 900 combo. The JCM 900 did not sound as good. The JTM 622 was truly the best sounding Marshall and probably one of the best sounding amps I've ever played through.

[@eduluke2010]

I have this amp since mid 90's... Sounds amazing! Mine overheated half-dozen times, until I sent it to a local tech that did a quick/cheap fix. Never had a problem anymore. My to go clean amp.

[@mikejamieson4252]

What did he do?

[@auntjenifer7774]

@@mikejamieson4252 either put a fan in it or put a metal plate in it above the tubes so the heat is reflected by the metal plate so it doesn't rise up into the components within the amp.

[@mikejamieson4252]

What about putting in a plastic vent on top?

[@LeStraTele]

I tried one of these when they came out. I don't remember it sounding that good. Sounds great here in this video.

[@Andy_Yates]

I have a Marshall and you make me want more Marshall's :)

[@JohanSegeborn]

Hahaha! Sorry Andy, I have the same problem

[@brianlee5455]

This damn thing BARKS at the moon!

[@stevenmgyori3826]

Very nice Johan! That's a sweet amp and Great demonstration as Always! Be Well Brother!

[@JohanSegeborn]

Thanks brother! Have a great day

[@auntjenifer7774]

I have been running my jcm 600 head into 212 alnico tweed cab and it sounds... Very fender tweed ! Thanks for the cool video Johan😉

[@shoegazeforever8810]

The JCM 600 is a great amp despite reliability/overheating issues.

[@auntjenifer7774]

@@shoegazeforever8810 mine has vents in the top so it's never over heated but since I've had it I've usually run a tiny fan for long, hot bar gigs or summer festival street stages that get hot but NEVER had a problem with my jcm600 😉

[@shoegazeforever8810]

@@auntjenifer7774 I had a fan fitted to mine last week. Hopefully it will now be able to cope with hot summers. Marshall made a big mistake putting the electronics above the valve tubes (heat rises).

[@auntjenifer7774]

@@shoegazeforever8810 No doubt, but THEY weren't going to change the build as it's expensive so they put the same amps in vented cabinets and made vents in the chassis and called it a jcm600 but they just should have put tiny fan in these like they did the valvestates avt2000 series even though those AVT 2000 amps only have one 12ax7 and virtually NO heat so it just kinda makes me laugh and wonder what the F#@- !?

[@shoegazeforever8810]

@@auntjenifer7774 I agree 100%. I also have the AVT 20 - a very good little amp and great for trying out different valve tubes. (I changed the stock Marshall valve as it was a bit too dirty at Gain 8+.)

[@dogguitarbluesman]

thinking of getting one..had to come here first because I KNEW you would have demoed it!!

[@imannonymous7707]

The authority on everything marshall, trust him

[@andytraverse]

These are really good with a telecaster too - neck pickup , dimed on the clean channel for some Hendrix-y/Fruschiante type sounds. Very loud for home use, a Powerbrake works well with this amp, still sounds good on its quietest setting. Mine came with 3 x ECC83 preamp valves, and 2x 6L6WGC Sovtek poweramp valves.

[@-thirteen]

WOW at 2:12 that tone is great.

[@tonywissler5758]

Sounds nice! I have a JTM60 head! It sat for 13 years with a bad transformer (used my mesa during this time) - just recently had a new Drake put in it - and I push the front end with a tube preamp - it sounds awesome!

[@JohanSegeborn]

Thanks Mark!

[@Snakefinger1000]

First of all I'd like to thank you for this video, there aren't many videos on KZbin that demonstrate how to set them up I've had a few Marshalls over the years and they seemed to be relatively easy to tweak to get the sweet spots etc I've had one of these little brutes for over ten years, I bought it for it's clean Fenderesqe tone and it wasn't until I saw this video that I realised that it had Eminence speakers. I suppose that's one of the reasons why it sounds like a Fender. I just never bothered to look at the speakers. Thanks Johan

[@Naughtez]

Fabulous review! Thank you.

[@Billy_Blades]

This was a great amp. I absolutely loved mine.

[@stevenburvenich168]

Most Fender like amp... +50% of vid full on palm muting :D Sounds a great amp. Very versatile. And I ADORE the fact you put master on 10. 100% Tube amp territory.

[@USDAselect]

Never heard of this amp before. This amp really sings. With those Eminence speakers and 6L6 tubes this amp brings the brightness lacking in Marshalls. It really does sound like they were trying to create a secret Holy Grail hybrid of Marshall and Fender way before the Bassbreaker.

[@davidadam285]

Once again, I bought yet another Marshall because of Sir Johan‘s demos. I really like the rather crunchy than high gain distortion sound of this amp and it“s fantastic when cranked up. Thanks to 30 Watts, you can crank it without p****ing off the neighbors😂🤘. I just put in a Celestion Vintage 30 speaker and it really improves the tone.

[@davidadam285]

@Nicko Lps Basement, all doors and windows closed, solid brick construction house… German engineering 😂

[@davidcaro8217]

Classic Vint Marshall tone!

[@jakewilliams5796]

The clean channel all at 5 master at 10 is amazing just put you favorite boost pedal on there and its perfect, and i really liked the dimed clean channel also. Great video again ty ty.

[@JohanSegeborn]

Thanks Jake!

[@Snakefinger1000]

It's a year later and I've just plugged in. No clean tones today. I have a plethora of BOSS stomp boxes but decided to use a BOSS BF-3 and a Digitech Distortion into the old JTM-30 on the Gain channel @ 9 with full Gain. Sounds awesome but the neighbours must be tearing their hair out. My SG is kicking arse

[@fabriziopolonia4156]

for a couple of years I owned a JTM60 1x12 (to which I also hooked up a 1x12 Mesa/Boogie cabinet with Black Shadow cone). It wasn't bad if you turned the master up to 7 or 8, but I don't remember it for its clean sounds, it must be said that the JTM60 had EL34 power tubes. to play Iron Maiden-style metal it did its job, unfortunately it broke too often, burned the power valves, and fell silent on stage. finally, fed up and angry, I sold that Marshall and the Mesa Boogie cab and bought myself a Fender Blues Junior, reliable and with magnificent sounds, and I have never regretted it.

[@bennyjones1597]

I love that thing that Marshal sounds awesome

[@alanst.4417]

Seems to be the latest Johan jubilee Marshall, congrats on the 60k, it's more than deserved!

[@mikedennis6979]

The 1990's JTM series sound very good. The main issue of over heating is caused by a poorly designed bias circuit. My JTM 30/112 had the the problem addressed and it is my currently main gigging amp. The speaker should also be replaced with a V30 or better still a proper ohmage alnico speaker. Cheers

[@mikejamieson419]

Re: jtm 60/30 Put an aluminum shield between tubes, do the diode bypass mod on dirt channel, upgrade the output tranny and throw in some old 6ca7’s and this amp will blow most amps out of the water! 💣 🌊

[@patrikzarkovic289]

You are the man with the twang...

[@JohanSegeborn]

Thanks Patrik! :-)

[@torarinvik4920]

Exceptionally well recorded this time. I notice sometimes your recordings sound bigger than other times. The 545 is a killer mic though. The MD421 from the 60s is also extremely good but not as cheap!!!!

[@JohanSegeborn]

That’s great to hear. This mic was a 548 actually. It’s a bit middier than the 545

[@torarinvik4920]

@@JohanSegeborn Interesting. Have you tried the EV mics from the 60s? I have a EV 675 also known as the Jim Morrison microphone. It makes any guitar sound vintage it's THAT good.

[@jplew138]

Thank you, Johan. Now I'm gonna have to find one of these 😉

[@jcwear89]

Sounds fantastic!

[@BillyEatWorld]

Def get a JCM600 instead of JTM60 / JTM30! JTM 60s had serious overheating issues which were “fixed” in the JCM600 with more ventilation. Same amp otherwise. Apart from that, very good value. Own one along with a half dozen other Marshall’s new and old and it easily holds its own.

[@RobCmusic]

That clean channel turned all the way up sounds great!

[@JohanSegeborn]

Thanks Rob, it does indeed!

[@innocentoctave]

Beautiful clean sound, but with gain my word that thing snarls. I wonder whether the 10" Eminence speakers work to tighten up the Les Paul's bottom end?

[@ajaykumargoel9398]

Hi Johan! Sorry I have a question that's off topic from this video, but how would you suggest setting a Marshall JCM 2000 DSL 50 to sound most like a Plexi? Thanks so much!

[@100DollarHeadache]

I thought the Eminence 10-inch speakers used in this amp were proprietary for Marshall, but I saw "10702" on the label of mine. This is most likely the Legend 1058 speaker, since I saw the same number on the labels of that model. No wonder the cleans nailed the Fender tone.

[@robbierussell9536]

Sounds great. Eminence do have good points. If Celestions we're in that cab as close as Johan was. Wow. I'd be deaf!!!. Lol

[@007SpencerForHire]

I played this exact amp yesterday in an NZ guitar/amp shop but it didn’t have a reverb! Johann doesn’t mention any pedals in the intro so how is he getting that “echo”?

[@Fighterjetpinups]

I love your videos but I must say your feel and style always shine through no matter what amp, speaker ECT you play. So that's a compliment but sometimes I can't tell the difference in stuff you are comparing. The biggest change is when you go to the SG which sounds awesome. I would like to see a filter cap compare in fender amps. Say 70uf vs 220uf with SS rectified. See if it really adds punch to the low end if you go bigger. Thanks!

[@mikejamieson4252]

Id it normal for Marshall to have a fizziness after note? I did clipping diode bypass mod and there is a fizz after each note

[@gerryloughran1676]

Hi-gain for me or dime the clean ...sounds great with the Les Paul ...cool

[@auduneggen4847]

I had the JTM 60 2x12 combo some years ago. Great sounding amp, but too bad they had the terrible curcuit-board right above the horizontally mounted powertubes. Mounted a fan in mine, so that was ok, but then the pots and inputs started to fail, so I sold it. I know where it's at, so maybe I should buy it back and have it properly serviced and repaired with some better components... :)

[@auntjenifer7774]

No, go find a head unit, the head units are jcm600 but the same thing as you old one and the head units don't seem to have the problems the combos did.

[@francescodamico7903]

Hi great ! I'd like to own a 6L6/5881 Marshall so... JTM. And i'm looking around and i was wondering what differencese are between JTM 45, JTM 30, JTM ST20, ... all have 2 of them as power stage tubes but one is rated "20" and the others 30. What are the main differencese between, overall, the st20 and the regular jtm45 ? (The jtm30 is two channel and there are many other differences... but is even the cheapest on used market so ... ). And i also was wondering: buying a used jtm30 combo 2x10 and rehouse it like a head would it be possible do it ...upside-down ? So i would get a more tipical Marshall head design and, most of all, i'd have the tubes above the circuit and not under underneath it. So maybe i'd solve the heating issues. ...but i'd have the circuit plate also upside-down with components hanging ... would it be a problem ? What do you think ? Do you think that to buy a jtm30 nowdays is just a loss of money ?

[@gmmakesmehurl]

If you haven't already, try out a late 70's-early 80's Marshall 4140 Club and Country.

[@JohanSegeborn]

First chance I get! Those are probably also a contender for this title :-)

[@gmmakesmehurl]

@@JohanSegeborn That would be awesome! They seem to be getting difficult to find, though. But, the ones I've seen are still fairly affordable and in good shape.

[@craigeaton9497]

I had the 1x12 version back in the 90s. Sounded great, but had AWFUL reliability issues. The rectifier diodes are mounted right above the power tubes and can easily overheat, blowing the transformer. Cool sounding amps, but they eat transformers for breakfast if they're run hard. Heard some people had luck with a cooling fan next to the power tubes.

[@noakwesterberg]

A friend of mine had one, great little amp!

[@michaelmasin1996]

why did they even bother making it a two channel amp? the clean gets dirty enough when cranked, and sounds amazing by itself

[@Sniperfire24]

2:11 omg that riff is awesome! Can i steal it? haha

[@siegfriedwashburn3484]

Hi, Johan! I am a huge fan of stereo speakers. This one sounds like Rolland JazzChorus (the old one), but by other hand, its very Marshall nature amp. I wish, I will be able to try it. See you! Zigfrid (The presentation will be in Saturday, then I will upload the album in the internet)))

[@JohanSegeborn]

Looking forward to that! See you!

[@christopherkelley3185]

These sounded great but were super unreliable. I had a JTM60. Power tubes sent heat into the chassis and blew out the bridge rectifier and killed solder joints. They pulled the line after two years. If you find working one stick an aluminum shield over the EL34s to block the heat.

[@josephpickard3108]

Exactly why I steered clear. Was impossible to find one that hadn't bitten the dust for a while. Such a lovely amp.

[@auntjenifer7774]

They Marshall rectified that problem by using vents in the top and renamed the amps jcm600, I have one and have had it for years with hundreds of gigs on the same tubes and never had a problem, not even noise as it's quite with NO hiss.

[@psychorock83]

very nice amp , anyway it would be nice to hear videos of those good budget tube amps also played with good budget guitars like the SG tribute stock..or a Mexican strat...or a Lespaul studio with peavey classic 30, or also those peavey classic , marshall jtm 30/60 in to marshall cabinet with those premetioned budget guitars.

[@andrewlukinsmusic]

How does this Marshall JTM30 compare to the Marshall DSL40?

[@andrewdykes4589]

Andrew Lukins the dsl 40 will actually last. These jtm30s are famous for having major issues. There are some out there going strong but the odds of it being a good one aren’t great.

[@auntjenifer7774]

@@andrewdykes4589 if it's still up and running it's more than likely fine.

[@traineecanuck]

Would love to hear that with a strat. Strat + Marshall is my benchmark for clean sound.

[@EinzigWahrerGrymbart]

I've got the 1x12" Version of this Amp. Can definitely recommend using a Strat on this one. A little crunch in the clean channel & it almost sounded like Ed King. Who had a great single coil sound in my opinion. The video title gives it away: It has some nice Twang in it also. Try neck pickup and a bit of that awesome Spring Reverb.

[@GrooveDuude]

Great little amps. I have a new transformer, maybe a diode mod. And biased appropriately so it doesn’t cook like many have. You can also jumper the effects loop for a slight boost.

[@guitarjediwarrior]

I actually like most the airyness and the clean compression of the funk stuff on the neck that you played at 04:10 :) And the looks.. omg I'd call it Wet Sand. :))

[@granvillefriel1877]

That amp sounds killer

[@Superchixxx]

Sounds great!

[@odallard]

This was my first amp...good times.

[@dumbdickler670]

The clean channel dimed really is a great sound

[@Awyffa]

Saw one for sale currently here,definitely gonna Scheck out how similar it sounds to the one you play. Alright Lets Go!

[@chrishenderson9130]

I sometimes just watch to catch your vibrato. Just killer with the shake, brother...

[@ronaldjohnston3723]

I need to learn some Johan Riffs

[@1peanut]

Is the Marshall JTM 30 1x12 a good tube amp ?

[@vapporiesat3125]

don't they have overheating issues?

[@Quetzalcoatl999]

I believe the overheating was more prevalent in the 60w version. The side ways tubes with little to no ventilation made a ez-bake situation cooking components. It didn't take too much to fix tho, some people put computer fans in the back, other people just put some heat insulation tape or a heat shield. I have the 1x12 jtm30 and love it.

[@JohanSegeborn]

I have a couple of JTM60 and JCM600 videos. I show a mod that addresses that problem in one of the later ones. I’m not sure if 30 had the problem but 60 certainly did

[@birchlee21]

@Kenny H Would you bother doing that with the 30 watt version? I've always been afraid to push my amp to hard because of these rumors. I love the thing but I don't want to push it up if it is going to melt solder

[@ibanez2607]

I installed mine 30 2x10 with a computer fan. Works like a charm! Never overheated!

[@vurbddum]

@@ibanez2607 ive been thinking to do the same thing. Did you wire into the amp itself? I have a schematic but havnt worked out where to tap into yet, any ideas?

[@peterschmidt9942]

Clean channel sounds a bit Fendery, but the high gain sounds all Marshall! I've been meaning to swap out one of the wolverine speakers in my TSL with an eminence. Being 20 odd years old, it's starting to get a few cracks and pops so need to swap out the HV caps first. Nice playing Johan. I reckon you should start a series of videos Titled "Can it Plexi". Then again, that's your entire channel! Keep it up mate.

[@mgalbu]

Great video as usual! Liked the cleaner sounds, not too crazy about the gainy tone of this amp. Perhaps it would be better through a 4x12 with Greenbacks?

[@levijessegonzalez3629]

How would you say the cleans compare to a plexi

[@noeffnwaypal]

I have the JTM 60 model. It sounds great but gets really hot after a while. I normally have to run a fan behind it to help keep it cool.

[@JohanSegeborn]

There is a physical mod that can be done to solve that. Check out this clip kzbin.info/www/bejne/oJi2iJ-Eitefg68

[@LucasMarquesJ1]

the jtm 30 is a lovely amp, but... it have a big overheating problem, which make it really hard to find one in good condition here in Brazil. Knew a guy who used to mod those, getting rid of that common problem, he used to gig with one, great sounding amp.

[@Cmack6025]

How do you get these amazing amps to demo?!?!?! You make me want to get all of them Great job!

[@LeviBulger]

I can attest that these amps sound so good with single coils, but damn I never realized how much sizzle and bite you can get out of a humbucker through the clean channel. Only bad thing about these amps is that they're full of reliability problems. Almost not trustworthy to gig with regularly. And fixing them is expensive as hell, almost as much as these amps are worth.

[@auntjenifer7774]

Funny you should say that before ever having any experience with one. I have bigger the same Marshall jtm600 for 3 years now and never had a hiccup, just killer tone like you hear here.

[@silverstone3228]

I like when you do videos like this , close up camera so we can see you playing, also the recording is amazing Did you use a new mic? More vids like this johan pls

[@JohanSegeborn]

Thanks, glad to hear it! I used the 548 and the 414 that I usually record with. I went through API 512 and 525 outboard. I’m gonna try to use format more. Cheers

[@cliveclive54]

That was killa Johan,thanks mate \m/

[@kuitaristi3003]

Great amp but i remember that these had overheat issues maybe because tubes are at horizontal positioned?

[@guitarocd9984]

These amps were a mistake.

[@innocentoctave]

Inadequate ventilation, inadequate fan, valves biased very hot ... It's not a recipe for a long life.