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Unread 01-04-2009, 11:11 AM   #1 (permalink)
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Marshall 4140

I have just bought it, anyone have any specs on it? I can't seem to find any.
Marshall 4140 2x12" combo from 1979.
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Unread 01-04-2009, 10:06 PM   #2 (permalink)
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Re: Marshall 4140

You must mean the 4104:

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Unread 04-02-2009, 04:23 AM   #3 (permalink)
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Re: Marshall 4140

If you mean the fawn brown 2x12 Marshall 4140 Club & Country, then you just picked up a great & rare Marshall combo.

This amp was Marshall's take on the Fender Twin. It was aimed at the Nashville market, for tele and steel guitar players mainly. When it was released in the late 70's it was the most expensive amp to develop that Marshall had ever done up to that date.

It has two channels, one with a reverb that sounds like it is from heaven, and one non-reverb channel.

The amp came loaded with gold lion KT77 tubes, hard to come by today. But JJ makes a good KT77 substitute. You should use these tubes instead of EL34's, as they are what the amp was designed for originally.

I use my 4140 mainly for clean sounds, but it can sound pretty dirty with an original Marshall Guv'nor pedal in front. It does not overdrive so well on its own, it rather creates a fuzzy distortion.

Alex Lifeson used two of these combos to create his best guitar sound so far, on the most legendary Rush albums. He also used them a lot on tour, even way after he stopped using them in the studio. Think the famous Tom Sawyer riff, that is the sound of his two 4140's.

Stevie Ray Vaughn also used one of these amps for his clean sounds, earlier in his career.

Neil Giraldo from Pat Banetars band also used these amps.

If you still have the original red framed speakers in the amp you should change them out for something better. They were the amps only weak point. That is if you are not one of the lucky few who scored the 4x10 version with Celestion speakers.

These amps looks super cool and sound great. Just don't expect to get the ordinary Marshall tone of them. They are different beasts. If you want a Twin amp with more muscle, then this it it!

Feel free to mail me through the profile if you have more questions, as I see you are a fellow Swede.
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Unread 04-30-2009, 09:41 PM   #4 (permalink)
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Re: Marshall 4140

If you mean the 4140 Fawn/straw amp, then you have a goldmine on your hands. This is the first amp I ever owned and have found it difficult to use anything else in the 24 years since. I usually run the dry side with effects and keep the reverb/boost side clean. I was using this for clean sounds and a JCM800 2204 w/4x12 for my drive sounds with an a/b box switching them. Got more than a compliment or two on that setup.

Unfortunately that amp weighs about 80 lbs and doesn't come with casters. My Carvin 4x12 didn't have casters either. Pretty much killed my back lugging that stuff around
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Unread 08-06-2009, 09:26 PM   #5 (permalink)
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Re: Marshall 4140

My amp has 6L6's in it.

Did all 4140's come stock with KT77? Can you substitute KT77 with 6L6 tubes or do you have to do some mods?

I hope who ever put in 6L6's did it correctly. How would I know if the 6L6 are in properly?
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MARSHALLS
Heads - 6100LM, DSL15H, JVM410JS, 2555SL, JVM1, DSL1, JCM1, JMP1, JTM1, JMD1, YJM100, AFD100, JVM210, JTM45, DSL100, JCM800 2203 & 2205, JCM900 4100, VM2466, 1974, 1987x, Haze15, C5H, 3210
Cabs - 1960AX/BX, 1960A/B, 1960AV/BV, 425A/B, 1965B, 1936, Haze A/B, C5 A/B
Combos - SL5, Class5, JMP4140 Club & Country, DSL401, JCM900 4501, JTM615
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Unread 09-17-2009, 07:19 PM   #6 (permalink)
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Re: Marshall 4140

BUMP - Does anyone know about which tubes should be in this? Since I have 6L6's, how do I know if those are the correct ones?
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MARSHALLS
Heads - 6100LM, DSL15H, JVM410JS, 2555SL, JVM1, DSL1, JCM1, JMP1, JTM1, JMD1, YJM100, AFD100, JVM210, JTM45, DSL100, JCM800 2203 & 2205, JCM900 4100, VM2466, 1974, 1987x, Haze15, C5H, 3210
Cabs - 1960AX/BX, 1960A/B, 1960AV/BV, 425A/B, 1965B, 1936, Haze A/B, C5 A/B
Combos - SL5, Class5, JMP4140 Club & Country, DSL401, JCM900 4501, JTM615
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Unread 08-22-2010, 05:11 PM   #7 (permalink)
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Re: Marshall 4140

Hey eveyone...oh dear, hope you're not all dead or something as it's taken me all this time to find you.

I've also got two of these beauties although one of them is the prototype and comes with a dark brown grill-cloth and the McKenzies are not coloured red either.
They are amaaaaaaazing amps and I just wish that I lived somewhere where I could crank them up
I was thinking of investing in an Axe FX processor (for convenience) and was working out what I could get rid of in order to raise the cash....just can't bear to part with these beauties, they really are quite unique.....I was a huge Alex Lifeson fan but as soon as I got these amps I started to look for (and find) amazing sounds of my own.
I don't really care who's used them anymore, if you see one then buy it...you won't be sorry....they sure help you soul to sing.
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Unread 04-07-2011, 01:03 PM   #8 (permalink)
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Re: Marshall 4140

I have one of these 4140's on lay away and don't know if it needs fixing. Should I put the money into it and restore it?
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Unread 06-15-2011, 04:17 PM   #9 (permalink)
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Re: Marshall 4140

Yes Yes you most certainly should...but if you have the original red McKenzie speakers my advice would be NOT to change em. These amps are clean but rich and wonderful. You can get a nice crunch just at the point that the amp starts to break....combine that with a great distortion/fuzz/overdrive and your squarewave dreams are realised. Add a little modulation and or just use the built in reverb.
A very wonderful amp indeed, it is one of those rare amps that helps you to be yourself and to become your own favourite musician.
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Unread 09-23-2011, 08:35 AM   #10 (permalink)
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Re: Marshall 4140

what were the original tubes for the 4140 combo amp (1980 )
EL34 or 6550 ?
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