|City of license||Dell Rapids, South Dakota|
|Broadcast area||Sioux Falls, South Dakota|
|Slogan||Great Oldies Radio|
|First air date||1998 (as KSOB)|
|Former callsigns||KSOB (1998-2001)
|Owner||Duey E. Wright
(Midwest Communications, Inc.)
|Sister stations||KELO, KELO-FM, KELQ, KRRO, KTWB, KWSN|
KQSF (95.7 FM, "Kool 95.7") is a radio station broadcasting an oldies format. Licensed to Dell Rapids, South Dakota, it serves the Sioux Falls, South Dakota area. It first began broadcasting in 1998 under the call sign KSOB. The station is currently owned by Duey E. Wright, through licensee Midwest Communications, Inc.
The station signed on in 1998 as KSOB with an oldies format as "Q Gold 95.7" owned by LA Media, and later changed to the KSQB call sign in 2001. KSQB was also owned by Feller Broadcasting, made up of a partnership of brothers Rob and Nick Feller. KSQB gradually tweaked to an adult contemporary format, and dropped the "Gold" from its moniker by April 1, 2004. Backyard Broadcasting acquired the station later in September 2006. With the growth of the adult hits format in 2005, Q95.7 gradually shifted to adult hits, and began reporting with the format to Arbitron by 2006.
The station was staffed by The Cartwright Brothers Morning Show (Weekdays 7 to 9 am) and Big Scott Allen (Weekdays Noon to 6pm.) Big Scott was also the program director of the station.
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. 
- "Format Changes". Your Midwest Media. 28 February 2013.
- Kool 95.7 KQSF official website
- Query the FCC's FM station database for KQSF
- Radio-Locator information on KQSF
- Query Nielsen Audio's FM station database for KQSF
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