JBL Professional: Origninally set up in 1946 by James B Lansing, JBL's rock & roll roots began in the '60s as Rock underscored the need for heavy-duty transducers that could take the mighty abuse given them during concerts. The basic Lansing design, the D130, became the signal example of what could be done in this area.

It was Leo Fender of the Fender Guitar Company who identified the D130 as the ideal loudspeaker for his electric guitar designs. Through a contract with Fender, JBL provided a specialized version of this loudspeaker for that company. Subsequently, JBL has manufactured a number of other designs from ten-inch models all the way up to eighteen-inch models targeted for the music performer