The BRUTAL Terry JTM Marshall Amp! THOR AMP!

This a super rare early 1970s tube guitar amp built by Terry Marshall, the son of Jim Marshall and the 'T' in JTM. I sounds like a JTM to me, wonderful. I'm playin g it through a 1972 Marshall 1960B with T1221 G12M Greenbacks with Pulsonic cones using a 1973 Gibson Les Paul Custom with a 1977 DiMarzio Super distortion ion the bridge.

[@loubydal7812]

Simply amazing! What a gem of an amp, what you play sounds very vivid and "alive". Old school guitar amps really rock. Thank you !

[@JohanSegeborn]

Thanks, great to hear that!

[@nylonsteel]

70s rock all over it. Brings me back to UFO phenomenon album with this tone too..

[@JohanSegeborn]

Thanks nice compliment

[@olssong7941]

God damn, you're right! It really sounds like their album Flying, too!

[@roncarter2188]

Wow how awesome to be demoing that amp. What a cool piece of amplifier history.

[@JohanSegeborn]

Thanks Ron

[@dananthony6258]

Those switches remind me of a vhs player from the 80's. Lol. Sound great . I like the dry better. Thanks for the video . That wss fun.

[@JohanSegeborn]

Thanks Dan! Yeah I always managed to break those switches on the cassette decks I had so I had to push the stumps of the switches each time 😂 they are not around anymore for a reason

[@kksguitargarage6993]

Amazing sounds coming out from the amp the guitar and fingers. It’s a pure joy to listen to. 😃

[@vintagetone22]

Superb amp .its a monster for sure.nice playing from the king.🎸👍⚘⚘🌹🔥🔥🔥🙏❤🌹🌹🌹🔥

[@JohanSegeborn]

Thanks!

[@pleximaster1338]

Super cool Terry amp! :)

[@JohanSegeborn]

Thanks man! ❤️

[@user-qt2ok6gd6s]

Lovely tone! Less brittle than the later circuits, such a smooth top end with plenty of clarity, thanks again for showing us something different.

[@maxvockner]

That looks like a crazy chassis set up😮. Sounds killer dry. What a amazing piece of gear

[@Marshall-uy2dv]

That sounds killer!

[@JohanSegeborn]

Thanks!

[@wrongchordsrecords]

i wondered why these were expensive, i didnt know there was marshall connection .it sounds great at the start .

[@victorbeebe8372]

Aloha Johan! Great sounds! I doubt I would ever see a Thor here in Hawaii, but never can tell. Mahalo Johan.

[@JohanSegeborn]

Aloha Victor!

[@MS-Patriot2]

Just love the attack on single notes.

[@sportswolf1]

It reminds me of a 1972 50W JMP I had. I wish I could find that sound in a 15 watt amp.

[@JohanSegeborn]

Yeah, this hi res bass content needs more power than 15W I think, I’d love to be proven wrong on that though

[@sportswolf1]

@@JohanSegeborn Me too, you need the loud clean decibel level to deliver that punch.

[@jaysonlavie603]

Interesting question. I’ve always sort have assumed this myself. But I recently picked up a bassbreaker 007 10” inch combo( based on Johan’s video from several years ago) and put in a Jupiter speaker ( P10R clone with 15 watt paper voice coil). I really thought the low end would be lacking in this amp. But I’ve been very surprised at the low end punch of this single 10” speaker and 7 watts of power even with bass at zero and mids at 10. Presumably the bassman/ JTM tone circuit, which is a big part of the sound. I wonder how close the right 15 watt amp would come in a 2x10 format with two 15 watt speakers. In the USA, I’d check out the 18W Reinhardt. Not sure how hard they are to come by nowadays but the ones I heard back in the day in Nashville were amazing at small club volumes.

[@vadenk4433]

Man that sounds so good. Zero harshness or fizz in the top end.

[@sometimelater]

like all good jtm45 or jmp50, never too much treble

[@pmkrak]

Sounds really nice! I prefer the dry sound!

[@JohanSegeborn]

Thanks glad to hear it!

[@user-ge5mu6dx3n]

いつも良い音　聴かせてもらってます。　感謝！

[@JohanSegeborn]

Thanks! Glad you like it!

[@zeusapollo8688]

That is a nice one to keep!

[@JohanSegeborn]

It sure is!

[@DrDoomshroom]

Sounds like early Aerosmith-fantastic!!!

[@sometimelater]

exactly

[@sebastianengberg1731]

my dreamamp to get! Snuffy Walden in Stray Dog used this the first album, insane guitartone

[@vinnieramone4818]

What are the fun things about this channel is watching you try to find the sound you're looking for. I think you might have just succeeded

[@JohanSegeborn]

Thanks Vinnie! You’re right I’m actually very happy with this tone

[@eddieholmes3236]

One of the best sounding Marshalls I’ve heard. Perfect dirty-but-clean balance. Thor? Are you sure they didn’t build it for you Johan?

[@JohanSegeborn]

Thanks Eddie! I think it was built the year I was born 1972 actually 😀

[@what1864]

that is one rare bird , read some were these amps have a wonderful clean tone ...

[@JohanSegeborn]

It did, I blew the fuse before I could record it though

[@livingabovethe12th]

Hey J, has anyone done a circuit trace of this amp? Initial glimpse of the guts it doesn't seem like it would be hard replicate. I can see all the caps have been replaced except maybe the tone stack. Interesting construction how everything amp 'block' is separated. If the person who loaned you this did the recap, maybe they can tell you if it's a jtm45 just with a different physical layout. Sounds really good. 👍🤘

[@JohanSegeborn]

Thanks! It was serviced by a friend of mine, I’ll ask for his assessment. Cheers

[@user-ql1pc7pi9x]

It's giving me a Laney Supergroup Mk2 vibe. Sounds like Black Sabbath.

[@JohanSegeborn]

Thanks! That’s what I like

[@tyroneenglish8396]

Great video and sounds as always Johan. If you can recall, and rewatch the video on the Suhr Badger amp. Was there anything you didn’t like about the amp? Much love

[@mauti8550]

Cool😊

[@JohanSegeborn]

Thanks!

[@jcoulter43]

Smokin' as usual! God bless and rock on 😎🎸👍

[@JohanSegeborn]

Thanks J! Rock on!

[@dennisperusse3837]

That thing looks like it weighs a ton. Loved the wet sound on that thing.

[@JohanSegeborn]

Thanks!

[@ER-yq1lc]

Snuffy's tone on all the Stray Dog stuff is some of my favorite tones ever! Would live to find a Thor amp someday. I'm still trying to find out what speakers he used. Seems like the split with Marshall they had to use Altecs in their cabs, but I'm not sure what cab Snuffy used on the records. Check out the demo Stray Dog "crazy bout to loose my mind" insane tone and playing. Stuffy does mostly TV show music now and has been really successful with that, but I wish he would rock out more!

[@user-yh7ib3ej8m]

I reached out to Snuffy about this a few years ago and he was nice enough to fill me on his Strat Dog rig. He used the Thor in conjunction with a Fender Concert amp! I was able to track down a Tnor which he later bought. Too cool

[@JohanSegeborn]

Cool! You can buy this one from Simon at Musikbörsen in Gothenburg. He lent it to me

[@sylvainbebert3704]

Maybe the best Marshalls are Jim's offspring ones ;) I didn't knew these Thor amps exist, it sounds great !

[@JohanSegeborn]

I didn’t know about this one either, so a very nice surprise!

[@riangarianga]

It sounds gorgeous either way! Yet with EQ you can always refine even more an already good sound. Those buttons on top of the inputs, is it an input selector switcher, so you don't need to externally patch channels?

[@superman-el9jd]

Viva Johan

[@JohanSegeborn]

Cheers my friend

[@TeleCaster66]

I always wonder how the amps you demonstratesound clean.

[@DMSProduktions]

Nice! Were those buttons on the front panel for jumpering the inputs without having to use jumper leads?

[@scotthutchens1556]

Love the sound of this amp! Like it with the EQ added. What are those white push buttons near the top of the amp case that are like on a reel to reel tape recorder? That’s very strange and have never seen anything like that.

[@JohanSegeborn]

Thanks Scott! Those are actually different ways to jumper the channels like we usually do with jumper cables on Marshalls.

[@scotthutchens1556]

@@JohanSegeborn Hmmm! Very interesting. Can’t wait to see and hear more of this amp once you get another fuse. I’m sure you’ll want to demonstrate how those push buttons work and the different sounds they achieve. I have the early 1990’s first reissue of the model 1962 of the Blues Breaker combo, I’m all set for that type Marshall sound.

[@ac7776]

Great videos. Can someone help me. I live in a small flat my amps are digital but I can't get them to sound like they sound on KZbin . On the amps should I have my gain low but hi on the pedal or vice versa it's mainly the marshals I struggle with . Thank you

[@ianorourke6320]

Kind of has a super bass kinda snarl. Definitely no plexi bright cap

[@gulliverjanarnoldnice3483]

Hee Johan,! Could you do a shootout between Goodmans audiomax speakers and vintage Jbls one time? I have a 12 and 15 Goodmans, but not the jbls.:( And would love anothere deepdive on the early Fane's you did a little while ago vs some greenie's :DDDD Im happy to send you these (audiomax) speakers for your shootout! Rock on!! 🤘

[@JohanSegeborn]

Hi! Thanks, that’s very kind of you. Cool, I didnt know about the audiomax. Do you know how they relate to audiom? You can reach me at [e-mail]

[@gulliverjanarnoldnice3483]

@@JohanSegeborn Audiomax is very similar to jbl contruction, super efficient, big magnet, alu domes, ribbon voicecoil wire etc. I have a 15 in a cab now that sounds very D130/K130-ish and waiting for the 12 inch version that comes in this week :) I"ll send you a private email if you're interested in trying them. Then we work it out :) How they relate to Audiom i have no idea. Never played them, but will be trying soon!

[@christianjimbomb8204]

You know what I will always feel is cool. The 60's to mid 80's circuits, and the early 60's celestion speakers, with the tu 0's-60's guitars. Proper functioning of course. Women that are extremely attractive and bright are welcome as I co

[@brentstewart59]

Sounds Like A Plexi The series

[@KozmykJ]

Rockin' What was the processing you added ?

[@JohanSegeborn]

Thanks! I removed a bit of 100 and 350 Hz and added a lot of 5kHz and 10kHz basically

[@pleximaster1338]

Sounds really good but the esthetics are not really in the Marshall JTM territory, its has its charm but looks a bit like an 70´s tape recorder... Hahaha! :) But I love it!

[@JohanSegeborn]

Thanks my friend! You’re not wrong about that.

[@Mr._Random]

Sounds like "Dressed to Kill" album

[@JohanSegeborn]

Thanks!

[@silverstone3228]

Hey johan , i have a question, my plexi head fell off from the cabinet on tge floor while i was moving the amp , am afraid to turn it onnow, what should i do

[@leiferickson3183]

What a crazy amp! Sounds awesome. Are those partridge transformers?

[@JohanSegeborn]

Thanks! Certainly looks like it

[@jessefillmore]

Hey , Johan I have a question . I was playing my Marshall Studio Vintage with the matching vertical stack 2/12 (like the one you played) and I had it jumped and cranked as loud as it could go and our bass player still drowned me out . He plays a 90's peavey with 2" 10 and 1 18" . I asked him kindly to turn down , and he did but he turned it back up . Am I the one with the weak amp or is the volume of his bass too loud ? I even had ear plugs in and it was still killing my tone . Can phasing issues happen between to different amps . It was sounding "wobbly" . Like how two strings sound when you almost have them in tune . We are playing in a small club .

[@user-yh7ib3ej8m]

kzbin.info/www/bejne/gnmVi2yaZ659rrcsi=HKvrZY8melHlnuIG This is the amp Snuffy Walden used in Stray Dog!

[@JohanSegeborn]

That’s really cool!

[@FabrizioCalderara76]

Its design is so strange, seems an hifi amp. How that attenuation knob works?

[@oscarfernandoofpublicnature]

Give it to me dry!!!!

[@GlennSpitzer-mi4cl]

Quit supporting this

[@moss1transcendant]

Hi Johan

[@JohanSegeborn]

Hi Moss!