Inspiration / 8 October 2021

Marshall Amplifiers: The Amps that Shaped Rock Music

Marshall Amplifiers: The Amps that Shaped Rock Music

55  years ago, the first Marshall amp left Jim Marshall’s garden shed in West London. Jim was a dancehall drummer and teacher who had a small shop in west London. His shop was frequented by guitarists such as Deep Purple’s Ritchie Blackmore and Peter Townshend from The Who, both of whom advised the retailer to build British-made amps, giving him full details about the specific sound they wanted. Jim took their advice, hired designers and started making guitar amps to compete with expensive American imports from the likes of Fender and Gibson.

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Jim Marshall: “Dudley built five prototypes, which I rejected because they weren’t quite right – they didn’t quite make the sound I had in my head. Then he made number six and I as soon as I heard it I said, “that’s it! That’s the Marshall sound.” It sounded exactly like the sound the boys had described to me, you see. We put that amp into my shop that Saturday for people to hear and it didn’t even have a cabinet, it was just the chassis! We took orders for 23 that first day”.

Today, when you think of Marshall you think about walls of amplifiers in arenas and stadiums. You think of the distinctive crunch that has defined rock music. You think of the countless hall of famers that have slain the stage with the amps as a backdrop.

Here’s a look at some of the Marshall amps that shaped (and are shaping) the sounds of rock.

Read more: The New PRS Guitars You Should Know for 2021

Marshall JTM45

Marshall JTM45
The original that started it all: The JTM45 from Marshall Amplification.

The one that started it all. The brainchild of Ken Bran – hired by Jim Marshall as an amp technician – the JTM45 was based on the Fender Bassman. Requests from customers and musicians for a cheaper version of the Bassman saw the birth of the JTM45.

Swapping American tubes with British ones, the JTM45 also was the first amp to feature a 4×12 cabinet – a closed-back cab with four 12” Celestion Alnico speakers. All of which contributed to giving the amp its distinctive “British accent”. How did it sound? Loud. Crunchy. Bright. Dynamic. Harmonically rich… It roared!

Early adopters of the amp included Pete Townshend and Eric Clapton. Eric used a combo version of the JTM45, known as the Bluesbreaker. The amp contributed to one of the most sought after and desired guitar tones ever heard, defining the Marshall sound for the blues and rock music to come.

Marshall 1959 Super Lead Plexi

Marshall 1959 Super Lead Plexi
Loud and proud with an aggressive tone: The 1959 Super Lead Plexi from Marshall Amplification.

Pete Townshend, still not satisfied with the volume of his Marshall amplifiers, was asking for an even louder amp! Marshall listened to his feedback and swapped out the KT66 power amp tubes for EL34 tubes and also added an extra 50-watt output transformer. Result? The much more aggressive tone that Pete was after.

The volume potential of these amps made them extremely popular with bands that played in larger venues. The first gigantic 8×12 cabinets, and later two 4×12 cabs stacked on top of each other complemented the 100-watt head – the legendary Marshall stack; a behemoth that stands more than 2 metres tall on stage.

Eddie Van Halen, Jimi Hendrix and Jimmy Page drove the ‘Plexi’ tone to popularity – it was the ‘68 spec 100-watt 1959 Super Lead Plexi that was best exemplified by the guitarists who played them. Interestingly, The name ‘Plexi’ merely refers to the plexiglass panel used on the front and back faceplates of the amps.

Marshall 2203 JCM 800

If you need gain in spades: The 2203 JCM 800 from Marshall Amplifications.

First released in 1981, the JCM800 amp became synonymous with 80s hard rock and metal. The new addition to the Marshall amp family had much higher gain and was a lot more aggressive than its earlier counterparts. The amp featured more gain stages and an additional ‘lead mode’ which activated an extra triode pushing even more gain to the pre-amp. The JCM boasted channel-switching, an effects loop, and onboard reverb – features that were entirely new to Marshall. Players could now switch between clean channels and distortion at the stomp of a footswitch, and the addition of a master volume allowed for distortion at much lower output levels.

The JCM800 was a staple of hard rock and metal guitarists in the 80s, championed by players like Billy Corgan, Slash, Jeff Beck, Zakk Wylde, Kerry King, Tom Morello and many more.

Enter the Marshall Origin

The complete Origin series from Marshall Amplification.

The tones of these legendary amps of yesteryear are still just as relevant and sought after today.

The Marshall Origin series of amplifiers have been built to faithfully recreate the tone and feel of the classic amps that preceded them, but with modern features to match the needs of the contemporary player. The amps are simple, single-channelled, no-nonsense tone machines. With styling and logo that’s a nod to the amps of the 60s, the Origin series features three ECC83 preamp tubes and two EL34 power tubes that contribute to the recognisable British tones.

The most prominent modern touch is the Powerstem – which allows you to have high or low power modes without compromising on sound quality. There’s also a tilt control, which emulates the blended sound of the bright and normal channels of the 1959 Super Lead Plexi and JTM45, in a single knob.

Attack of the Lunchbox: The Marshall Studio Series

The complete Studio series from Marshall Amplification.

Released back in 2019, the Marshall Studio Range sees some of the classic Marshall amps updated to suit the needs of the modern player. In fact, you’ll find these amps outfitted with brilliant upgrades like an effects loop and DI output so that you can plug directly into a PA system or Audio Interface.

Coming in at a sizeable 20 watts (switchable down to 5 watts), the Studio Series lineup consists of the ‘Studio Classic’, ‘Studio Jubilee’ and ‘Studio Vintage’ – all available in both lunchbox sized heads and combos. If you aren’t aware, these are all smaller wattage recreations of their famous JCM 800, Silver Jubilee, and Plexi amps respectively.

This revamped lineup means you can now get those classic, iconic tones at studio or bedroom levels without disturbing your neighbours and getting yourself evicted. Marshall has also gone the distance to provide you with matching 1×12 and 2×12 cabs (if you opt to go for the head version). A crucial detail if design coordination is near and dear to you!


Now that you’ve gotten a handle about some of the Marshall amps out there, be sure to check our Marshall gear!

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You can also head over to our online store to check out our gear if you’d like to shop from the comfort of your own home. If you need any advice on choosing the perfect Marshall amp for yourself, feel free to contact us online too.

Read more: 5 Great Guitar Amps Under $1000


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