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Bryston serial codes-how do you get date?

Know I got an email fom a prspective seller but unfotuntely didn't write it down nefore the email got deleted.If amybody can help me out be apprecited.Was really looking for an 4B ST but fellow who gave me info was early in bidding on Ebay with a B60 and I think it had not only the serial code but also adate code stickermaking it a snap.I am getting impressionm that folks are spending same amount on Brystons that is 16 years old verus one that is 4 years old which any small updated to cicutry before new series seesm to not make sense just because well one if practically new the other is at the end of many amps life spans.Not sure if the ST's will last 25,35.or 50 years (certainly they are better built since 20 years when it comes to amps is end of life of the average Bear.But want to know what I am looking at if serial is given.Checked Bryston site and it wasn't much help beyond touting 20 years.
Much thanks
Chazzbo
chazzbo
r3fico
34 posts
 
I have only ever seen 4 digits on a Bryston date code, have owned several amps and preamps from the ST series through the current version SST series.
mama1975
1 posts
 
Three digit codes(YMM): Last digit of year then month of the year. I don't think the 80s had a code so its only for the 90's. In 2000 they changed to the four digit codes.
Four Digit Codes(YYWW): Last two digits of the year followed by the week of the year. The date codes may not always be exact. Serial Number is the most accurate. Besides if the unit is stolen or tampered with its warranty may have been voided and it would say it on the serial number card. Call the 800# or email them.
audioknob
7 posts
 
I've had a multitude of Bryston amps and preamps, most have 6 digits and you can't glean a date from those number. 505395 is a recent 5B preamp and 448577 was the 4B amp. Calling is the way to find out
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