KXSC (104.9 FM) is a radio station based in Sunnyvale, California, serving the San Francisco Bay Area.
It is owned by the University of Southern California and airs a classical music format as a full-time simulcast of KDFC in San Francisco.
18-year-old Bill Stairs was among the alumni of early days of KFMR who went on to a career as a DJ, program director and broadcast consultant in markets from Spokane, Sacramento and San Diego in the west to Boston and Chicago in the east.
The station continued the Spanish-language music and variety format and aired Oakland Athletics baseball games in Spanish, with Amaury Pi-Gonzalez as announcer.
In 1989, EXCL Communications purchased KBRG 104.9 from Radio América, Inc and flipped to a Spanish AC format known as Super Estrella, the station was still licensed to Fremont, California.
On March 2, 2010, Clear Channel Communications sold the station to Principle Broadcasting Network (San Jose, California) for $5 million.
On May 25, 2012, the call letters were changed to KXSC and the format to classical music, broadcasting programming from KDFC to the South Bay and the Peninsula areas.