Contact Us

QSC Corporate Office

1675 MacArthur Blvd.
Costa Mesa, CA 92626 USA

General Inquiries
Tel: +1.714.754.6175
Toll Free: +1.800.854.4079

Customer Support

Tel: +1.714.754.6161
Toll Free: +1.800.772.2834 (U.S. only)
Fax: +1.714.754.6173

Monday - Friday 7 AM to 5 PM Pacific time

Business Hours

Monday - Friday 8 AM to 5 PM Pacific time