Home » Camera news

NEWS: Marshsall amps and how they’re made

31 July 2010 No Comment

Photos inside the factory of the rock god machine
Marshsall amps and how they're made. Audio, Amplifiers, Marshall, Features,  0

While at the launch of the Pure Evoke 1S Marshall DAB/FM radio, Pocket-lint was also privy to a tour of the Marshall Amplifier factory. If you’re an rock/audio junky you can arrange a visit of your own by appointment too but, just in case you happen to live rather a long distance from Bletchley, we made sure we took our cameras out and got snap happy while we were there.

The story begins with Jim Marshall as a drum shop owner and teacher who would time and time again get guitarists coming into his premises complaining that, firstly, he didn’t sell equipment for them and that, secondly, no one sold any good reliable audio power for their kind at all. It didn’t take a genius to work out the gap in the market and so, with the help of shop repairman Ken Bran and EMI technician Dudley Craven, the Marshall amp was born.

The vacuum tube valve amp system and ‘Marshall Crunch’ was the what made them famous along with fans that included Hendrix, Clapton and The Who, the latter of which was influential in Marshall’s most legendary creation – the speaker stack system.

The tale goes that Pete Townsend and John Entwistle were looking for some amps louder than 100W so that they could hear their own playing over the noise of drummer Keith Moon. Marshall came up with the idea of a single amp head with two speaker cabinets underneath it housing 4 x 12” loudspeaker cones in each and one above it with a further two speakers.

Originally, both guitarists’ two stacks were together until The Who came back complaining that their roadies couldn’t actually lift them. The unit was cut down the middle and the Marshall Stack as we now know it was born.

Marshall prides itself on using the same hand wiring techniques and valve systems from back in the day to provide what the musicians of this world still crave. Take a look at the gallery and see how they’re put together. Don’t miss the museum collection at the end.

?

Related links:

Tags:
Audio Amplifiers Marshall Features

The higher end Marshall amps are all hand wired. It's believed to be an integral part of the quality and what makes the Marshall sound according to many of the customers. 
A hand wired board. 
The Pure Evoke-1S Marshall in action 
The music pumped around the factory is of course powered by Marshall amps. The only distressing thing to learn was that Planet Rock was not obligatory for all workers. Some were playing Radio 2. 
The valve amp heads are wired, fitted with the larger components and then stacked ready to be fitted to the speakers and cabinet 
The underside of a completed Marshall amp head. Your own branded printed circuit boards - nice touch. 
Brass plated front and knobs that clearly only go to 10 
Each cabinet is made from the same high quality wood with the pieces engineered by CNC machine and finger joined at the corners for a tighter fit. Rock and roll is too much for glue apparently. 
The leather outers are stretched over the cabinets and stacked reader for fitting. 
Most of the workers in the factory were rather reminiscent of roadies. Could have been the Marshall t-shirts that did it. Nice to see a little humour among the team. That or there really is a Take That fan in the wrong job. 
Apparently it takes six months to learn how to attach the rivets for each different amp made by Marshall. To us it looked more like a couple of blokes hitting a box with a hammer but that's the untrained eye for you. 
The baffles on the front are made from paper. Paper's used because it gives the best quality of sound. Sadly, because there's little give in paper, a good kick will break the front quite easily. Note to selves, don't kick your amps. 
Amps coming off the line 
The final stage for each and every unit that comes off the line is to get a thorough check for structural quality and to get a bit of a noodling courtesy of the engineer and his choice of guitar and song. 
A barrel full of silica gel packs. If you stick your head in, you can actually feel the moisture being sucked out of your brain. 
The Marshall Museum featuring a wall of amplifiers - not far off every type Marshall has ever made. 
The other angle 
The original Marshall number one. The company has been offered blank cheques from artists looking to buy it. Time and time again, the answer is the same. It's not for sale. They daren't even turn the thing on in case it blows. 
The guitars as donated and signed by an assortment of rock legends. 
The bass was donated by Gary Moore of Thin Lizzy and Skid Row fame. The hilarious amp guitar was the one belonging to Nigel Tufnel used in the film Spinal Tap. You can guess how loud it goes. 
Left: The Westfield of Noel Redding - bassist of the Jimi Hendrix Experience. Middle: Ozzy's guitarist Zakk Wylde's Bullseye Les Paul. Right: One off Marshall Jackson 
One of the more recent items to the collection - Slash's Les Paul. His message says it all. 
The best headstock we've ever seen on an axe 
Priceless guitars 
The Dean Flying V from Dave Mustaine of Metallica and Megadeath 
The Marshall Theatre - walled with amps, played by legends and found on an industrial estate in Milton Keynes 

Marshsall amps and how they’re made originally appeared on http://www.pocket-lint.com on Fri, 30 Jul 2010 20:11:00 +0100

Leave your response!

Add your comment below, or trackback from your own site. You can also subscribe to these comments via RSS.

Be nice. Keep it clean. Stay on topic. No spam.

You can use these tags:
<a href="" title=""> <abbr title=""> <acronym title=""> <b> <blockquote cite=""> <cite> <code> <del datetime=""> <em> <i> <q cite=""> <strike> <strong>

This is a Gravatar-enabled weblog. To get your own globally-recognized-avatar, please register at Gravatar.