- 1675 MacArthur Blvd. Costa Mesa CA 92626
- (714) 957-7130
- (714) 754-6174
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Monday - Friday 7 AM to 5 PM Pacific time
Monday - Friday 8 AM to 5
Founded nearly five decades ago, QSC, LLC, is a globally recognized leader in the design and manufacture of professional audio/video system solutions. With power amplification, loudspeaker, digital signal processing (DSP) and digital mixer engineering resources all located under one roof, QSC uniquely leverages these technologies to deliver products and systems that far outperform the sum of their parts - providing compelling solutions for professional installed, portable, production and cinema sound customers worldwide.