garyeshroyer Posted June 19, 2007 Share Posted June 19, 2007 Consulting has been good this past year, so I am living my dream and have purchased several Heritage Klipsch speakers. The oldest is a perfect pair of 1971 Heresy speakers signed by PWK with clear plastic badges and accompanied by a Thank You Letter from Anna Belle. Q: Where can I buy a book, or some other document that will explain the Klipsch assigned date codes via serial number? I'd like to determine the manufactured date for each. How do I break down the serial number date code? Best Regards, Gary E. Shroyer garyeshroyer@aol.com Owner of 4 La Scalas, 4 Heresys, 2 Heresy IIs, 2 Forte' IIs, a pair of Klipschorns and some Bob Crites build em' up parts! Quote Link to comment Share on other sites More sharing options...
Guest " " Posted June 19, 2007 Share Posted June 19, 2007 KLIPSCH S/N FORMATS DATES DISCRIPTION EXAMPLE 1946-1947 ### 001 (ending #021) 1948-1961 #### 0121 (starting #0121) 1962-1983 ##letter#### 20Y1234 1984-1989(?) YY WW #### 89281234 1990-1997(?) DOY Y2Y1 #### 135791234 1998-2000 YY WW #### 00281234 1962-1983 Letter format A = 1962 F = 1967 K = 1972 R = 1977 X = 1982 B = 1963 G = 1968 L = 1973 S = 1978 Y = 1983 C = 1964 H = 1969 M = 1974 T = 1979 D = 1965 I = 1970 N = 1975 U = 1980 E = 1966 J = 1971 P = 1976 W = 1981 NOTES1946-1961 dates can only be found in log book (eng. Library)DOY= day of the yearYY=year (i.e. 99,00)Y2Y1=2nd digit of year, 1st digit of yearWW=week of the yearDate code on drivers (1994) Example - 9429 = 1994, 29th week of the year / YYWW Klipschorns of this vintage had the s/n hammer stamped into the tailboard, woofer access door or inside the woofer chamber. Quote Link to comment Share on other sites More sharing options...
memyselfandi Posted April 21 Share Posted April 21 Anybody know how to figure out th s/n of the klipsch rf7ii speakers 101184110340030 thanks Quote Link to comment Share on other sites More sharing options...
memyselfandi Posted April 24 Share Posted April 24 I don't know what I am being directed to do or say here, a bit strange, simply wanted to find manufacturing date for my rf7ii's but if you don't want to assist me please let me know so I can start looking elsewhere. Quote Link to comment Share on other sites More sharing options...
wuzzzer Posted April 24 Share Posted April 24 13 hours ago, memyselfandi said: I don't know what I am being directed to do or say here, a bit strange, simply wanted to find manufacturing date for my rf7ii's but if you don't want to assist me please let me know so I can start looking elsewhere. Should be the first two digits of the serial number. Quote Link to comment Share on other sites More sharing options...
Oniiz86 Posted April 24 Share Posted April 24 (edited) On 4/22/2024 at 9:08 AM, memyselfandi said: Anybody know how to figure out th s/n of the klipsch rf7ii speakers 101184110340030 thanks @memyselfandi I believe it's the same as the RF-7 IIIs, the first 7 digits are the colour part no., Black Ash or Cherry, the following 2 digits are the Year 2010, next 2 digits are the Week 34 & the last 4 digits are the production "batch" code, there would be a preceding 0029 & succeeding 0031, anyway it looks to have been built between August 23rd-29th in 2010 Edited April 24 by Oniiz86 Quote Link to comment Share on other sites More sharing options...
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