Expansion
After some years the professional power amplifier portion of the business overtook the production of guitar amplifiers. Meanwhile, QSC developed more conventional sales channels in retail music and pro audio stores and also started working with export distributors. Beginning in the late 1980s, Pat Quilter pursued his interest in more electrically efficient methods of power amplification by refining class G (and later, class H) technology as an extension of class AB, primarily for higher-power models.
In the early 1990s, QSC diversified from power amplifiers by starting development of network audio systems for remote control and monitoring of amplifier systems. QSC called its system QSControl (pronounced "Q's Control"). The company was one of the first licensees of the MediaLink networking technology developed by the Lone Wolf Corp. for professional audio systems. MediaLink, however, did not prove robust enough for professional audio users, so by the mid 1990s QSC abandoned it in favor of Ethernet-based networking, which was becoming more affordable and ubiquitous. At about the same time, QSC licensed CobraNet technology from Peak Audio to develop products that would distribute multiple channels of audio signals in the digital domain over common Fast Ethernet media.
In the late 1990s QSC started a loudspeaker research and development group within its engineering department. Within a couple years QSC offered loudspeaker systems for sale and is today a major supplier of loudspeaker systems in the professional audio industry.
Read more about this topic: QSC Audio Products
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