Members Fireproof777 Posted February 19, 2011 Members Share Posted February 19, 2011 Hey all -- I know this is more fitting for the Amp forum, but the folks here seem to be more receptive (and knowledgeable). I'm trying to figure out the date of manufacture for one of my Marshall JCM900 4100 series amps. Any insight? Thanks. Link to comment Share on other sites More sharing options...
Members Joby1knobi Posted February 19, 2011 Members Share Posted February 19, 2011 1993-1997 amps should show the year as the first two digits of the serial number. 1991 and 1992 have a "Z" at the end of the serial number. Link to comment Share on other sites More sharing options...
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