http://www.jbl.com/jbl-pro-landing.html

Playback the last 70 years of music and motion picture recording and one name stands alone: JBL Professional. Before THX® and Dolby®, before stereo and even hi-fi, there was JBL. Today, JBL Pro sound is heard in 70 percent of all professional venues, including legendary recording studios, famous concert halls and premier movie houses around the world.

Throughout those 70 years of technical breakthroughs, award winning designs and constant innovations the facts still remain: JBL loudspeakers continue to be the one benchmark for quality, the singular reference for accuracy in the play back of recorded sounds; the leader, the innovator, the authority.