KSBR (88.5FM, "88.5 The SoCal Sound") is anon-commercial educationalradio station licensed toMission Viejo, California, and broadcasting to theOrange County area. The station, owned bySaddleback College, airsadult album alternative (AAA) andAmericana music with a mix of legends, new music, and local music, as well as specialty programming on weekends. KSBR issimulcast withKCSN inNorthridge, California.

KSBR signed on in 1975 as aClass D, 10-watt student-run station and a limited coverage area of only a few miles from the campus ofSaddleback Community College. In 1979, with grants from CPB and NTIA, the signal was upgraded to aClass A, covering most of Orange County and the station signed on as Orange County's first National Public Radio affiliate with a staff of professional and student broadcasters. The program schedule at first employed an eclectic, free-form mix of rock music, drama and locally produced talk shows but, with a growing news and public affairs emphasis and a switch to an all jazz format, the station gained critical recognition and a growing audience.

Budget cuts in 1984 returned KSBR to a student-run operation, most of the professional staff was laid off and the NPR membership was discontinued but the strong emphasis on jazz and public affairs continued.

Since 1989, the station has hosted a fundraiser in May which they call the Birthday Bash. It draws top Jazz talent and has been held at various venues in Orange County over the years.^[2]

For years, the station had a What's-playing-now page^[3][4] on the web. That contained a list of the previous 6 CDs played (promos were counted as items, as were songs). As of December 2016, that service has been eliminated.

The call letters were previously used by an FM station inSan Bruno, California, which operated at 100.5 MHz, from 1947 to 1959.^[5] The station was owned and operated byEitel-McCullough, which moved toSan Carlos, California in 1959 and merged withVarian Associates in 1965.

On September 6, 2017,Saddleback College andCalifornia State University, Northridge, owner ofKCSN, announced the merger of their respective radio stations. The combined operation adopted the branding "The New 88.5 FM".^[6] On September 12 at 10 a.m. PDT, the FM and HD1 signals of both stations began simulcasting KCSN’s pre-existing "smart rock" AAA format, while KSBR’s jazz programming would move to their HD2 channels. KCSN’sLatin Alternative relocated to both stations’ HD3 channels.^[7]

On March 21, 2018, 88.5 FM announced that formerKSWD (100.3 The Sound) radio personalityAndy Chanley would host afternoon drive, taking over for Sky Daniels who continued as General Manager and Program Director.^[8] Prior to this, Chanley had guest hosted in Daniels’ place for several weeks since January.^[9]

On August 18, 2022, it was announced that KSBR would change its branding to "88.5 The SoCal Sound" on August 19.^[10]

On weekends, the current schedule^[11] breaks from jazz/smooth jazz and airs programs such asThe Whole 'Nuther Thing (free form eclectic),Kaleidoscope ofBlues,Reggae Showcase,Folk Roots,bluegrass, old-timey, Celtic,The '80s Experience, andMaking Your Memories (doo-wop and other music of the late 1950s/early 1960s).The Morning Breeze presents gentle, relaxing music (e.g.Enya) on weekend mornings.

• Campus radio
• List of college radio stations in the United States

• Official Website
• Facility details for Facility ID 58529 (KSBR) in theFCC Licensing and Management System
• KSBR inNielsen Audio's FM station database

33°30′11″N117°36′11″W / 33.503°N 117.603°W /33.503; -117.603

• HD Radio stations
• Radio stations in California
• Radio stations established in 1975
• Mission Viejo, California
• 1975 establishments in California
• Adult album alternative radio stations in the United States

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