Marshall jmp dating

marshall jmp dating

How do you date a Marshall amp?

The best way to date a Marshall amp is to first tell it you dont like Fender amps! Dating Celestion speakers does not need to be this complicated. Just go by the location of the date stamp rather than the stamp format, and then decipher the pair of letters within the date code.

How many volts is a Marshall JMP 50?

It has the code B at the end for 120/60 Volts (US). I have a 1969/70 Marshall JMP 50 (1987) Crossover with no back cover. Those 50w are super loud. Can not play in a pub. I would like to sell but do not know how much to ask.

What are the parts of a Marshall model code?

Starting in July 1969, Marshall starting using official serial codes. They were initially broken down into three parts: the model code, the serial production number and the date code. Marshall used letters as a date code to represent year of production.

What do the letters mean on Marshall amps?

Marshall used letters as a date code to represent year of production. Its important to note that, prior to 1984, this letter came last. The letter B was skipped, as were the letters I, O and Q since they might be confused for numbers. Use the model codes and date codes below to determine the model and age of your amp.

How do I determine the manufacture date of my Marshall amp?

For example, a serial number of M-2002-38-1035-B would indicate an amp made in England (M) in 2002 during the 38th week of the year, production number 1035, set up for use in the United States (B). If the speakers in your Marshall cabinet or combo are original, they can provide another piece of evidence when determining the date of manufacture.

What do the numbers on a Marshall amp mean?

Marshall amps with a Barcode 1993-1996: The first two numbers are the year, and the last two numbers are the month. Marshall amps with a Barcode 1997-Present: In 1997 Marshall changed to the latest dating system which is the easiest to decipher of them all. It is simply the year followed by the week.

How old is my Marshall amp with a barcode?

Marshall amps with a Barcode 1993-1996: The first two numbers are the year, and the last two numbers are the month. Marshall amps with a Barcode 1997-Present: In 1997 Marshall changed to the latest dating system which is the easiest to decipher of them all.

When did Marshall amps start using speaker date codes?

All Marshall amps originally came with Celestion speakers, so in cases where the speakers are original, speaker date codes can be used to date earlier amps. Marshall cabinets didnt officially include serial numbers until October 1992.

What do the numbers on a Marshall amp mean?

Marshall amps with a Barcode 1993-1996: The first two numbers are the year, and the last two numbers are the month. Marshall amps with a Barcode 1997-Present: In 1997 Marshall changed to the latest dating system which is the easiest to decipher of them all. It is simply the year followed by the week.

Why are Marshall amps so popular?

The legacy of Marshall amps doesn’t rest solely upon the 100-watt Super Lead, though. From the early JTM 45 prototypes to the Bluesbreaker combos and later innovations, Marshall stood for a particular sonic response, a brand of British rock quite separate from the jangly tones of Vox amps.

Why is the letter B missing from Marshall amp serial numbers?

The letter B was skipped because the letter A was used for 18 months and the letters I, O and Q were also skipped to avoid any confusion being mistaken for numbers. The serial number on a Marshall amp is usually located on the back panel of the chassis but some amplifiers made between 1979 and 1980 had the number on the front panel.

How do you read a barcode on a Marshall amp?

The first two numbers are the year, and the last two numbers are the month. Marshall amps with a Barcode 1997-Present: In 1997 Marshall changed to the latest dating system which is the easiest to decipher of them all. It is simply the year followed by the week.

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