Begin here: http://www.lansingheritage.org/html/jbl/reference/technical/1983-subs.htm. Smaller 15" B380 version is described near the end....
An even smaller version patterned after the Citation...
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Begin here: http://www.lansingheritage.org/html/jbl/reference/technical/1983-subs.htm. Smaller 15" B380 version is described near the end....
An even smaller version patterned after the Citation...