Electronics & Audio
15 objects still in production, each ordered by the year production began. The longest-running is the Klipschorn, made by Klipsch since 1946.
Audio
11
1946 80 years Klipschorn 2 other years claimed 
1957 69 years Klipsch Heresy 1947 also claimed 
1959 67 years Ortofon SPU Classic G 2 other years claimed · One pause 
1964 62 years Denon DL-103 2 other years claimed 
1972 48 years Technics SL-1200 One pause 
1973 53 years Linn Sondek LP12 1972 also claimed 
1977 49 years Rega Planar 1 1973 also claimed · One pause 
1984 42 years Koss Porta Pro 
1988 38 years Sennheiser HD 25 
1991 35 years Sony MDR-7506 
1997 29 years Sennheiser HD 600 
