The station is currently owned by Duey E. Wright, through licensee Midwest Communications, Inc. Its studios are located on South Phillips Avenue in Sioux Falls, while its transmitter is located near Baltic.

KSQB gradually tweaked to an adult contemporary format, and dropped the "Gold" from its moniker by April 1, 2004.

On November 1, 2012, Midwest Communications acquired KSQB-FM and its six sister stations from Backyard Broadcasting at a purchase price of $13.35 million.

On March 1, 2013, KSQB-FM changed their call letters to KQSF, changed their format to oldies, and rebranded as "Kool 95.7" (format moved from KXQL (now KELQ) 107.9 FM, which flipped to news/talk).

Mark Cartwright hosts the morning show from 6am to 9am weekdays and is the brand manager of the station.