Posted by Yamaha archive on January 19, 2004 at 21:13:11:
In Reply to: YEP 641's?? posted by Rasheed on January 19, 2004 at 20:40:06:
You can find basic information on the YEP-641 at the Yamaha web site under archived instrument information. The YEP-641 was made from 1985 through 1995
http://www.yamaha.com/yamahavgn/CDA/ContentDetail/ModelSeriesDetail/0,6373,CNTID%253D24351%2526CTID%253D243800%2526VNM%253DLIVE%2526AFLG%253DY%2526LGFL%253D%2526HST%253DY,00.html