Following Entercom (now Audacy)'s merger with CBS Radio, the new sister stations swapped signals to improve KSON's reach following the divestment of its former simulcast partner on 92.1 FM.

[4][9] In the late 1980s, KJQY and other Group W easy listening stations shifted to a format termed "adult spectrum radio".

Dick and Skibba were fired on February 14, 2007, according to program director Jim Daniels, the show was too cerebral for San Diego.

At first, CBS Radio had high hopes for KSCF with extensive marketing aimed at attracting the adult male demos, but ever since they switched formats from KPLN to Free FM, the station's ratings started to drop.

[1] In the end, the attempt to make Free FM a success in San Diego had proven to be too difficult and like other Free FM sister stations in New York City (WFNY) and San Francisco (KIFR), which returned to active rock and classic hits respectively, KSCF decided to switch formats in June 2007.

On March 29, 2012, CBS Radio announced that at 5 pm that day, it would flip KSCF to a CHR format with a heavy emphasis on upbeat rhythmic, dance and pop hits targeting teens and adults 18–34 years old, as "Energy 103.7".

In a statement made to radio industry website All Access, SVP/Market Manager Bob Bolinger noted that "Today's charts are dominated by energetic and upbeat Top 40 hits and the fans of this popular music are among the most engaged and digitally focused listeners.

Using a powerful combination of over the air and online will produce a superior product and great results for brands that support the station".

AJ and his longtime producer, Hula, have been without a radio show home since leaving Star 94.1 in mid-July of the same year.

[22] Prior to the completion of the transaction, both KEGY and KSON announced that they would be moving to different signals; the two stations ultimately swapped.

Immediately after the deal closed on November 16 at 9:00 p.m. (which would be midnight on the 17th at Entercom's headquarters), Entercom moved the country format and KSON intellectual properties to 103.7; 97.3 then began stunting with a loop advising listeners of the swap, while KEGY's Energy programming was temporarily moved online-only over the weekend before re-launching there the following Monday.

For 44 years and more than 2,300 shows, San Diego bluegrass fans found a home on KSON as the station transitioned from AM to AM/FM to FM to streaming on radio.com from vinyl records to CDs to MP3s.

KSON broadcasts using an HD Radio transmitter, the HD1 channel is the digitized standard signal as required by law.