KLIPSCH S/N FORMATS
DATES DISCRIPTION EXAMPLE
1946-1947 ### (001) ending #021
1948-1961 #### (0121) starting #0121
• Klipschorns of this vintage had the s/n hammer stamped into the tailboard, woofer access door or inside the woofer chamber.
1962-1983 ##letter#### (20Y1234)
1984-1989(?) YY WW #### (89281234)
1990-1997(?) DOY Y2Y1 #### (135791234)
1998-2000 YY WW #### (00281234)
1962-1983 Letter format
A=62 F=67 K=72 R=77 X=82
B=63 G=68 L=73 S=78 Y=83
C=64 H=69 M=74 T=79
D=65 I=70 N=75 U=80
E=66 J=71 P=76 W=81
1946-1961 dates can only be found in log book (eng. Library)
DOY= day of the year
YY=year (i.e. 99,00…)
Y2Y1=2nd digit of year, 1st digit of year
WW=week of the year
Date code on drivers (1994) Example – 9429 = 1994, 29th week of the year / YYWW