CFBK originally began broadcasting in 1958 as CKAR on the AM band at 590 kHz. The station launched a repeater in Parry Sound known as CKAR-1 the same year. In 1977, CKAR became CFBK. In 1961, CFBK moved to 630 kHz and remained on that frequency, until the station converted to the FM band at 105.5 MHz in September, 1987 and the old AM 630 frequency left the air for good on December 31 the same year.
(CKAR was a former callsign of a radio station in Oshawa, Ontario, known today as CKDO, and the CKAR callsign currently belongs to a community radio station in Huntsville known as Hunters Bay Radio 88.7FM and a television station in Armstrong, Ontario, known as CHFD-TV).
CFBK's branding was More-FM and changed to the Moose FM branding after the acquisition by the Haliburton Broadcasting Group in 2008 and then changed to New 105.5 FM, Muskoka's Lite Favourites with a new high-powered signal in April 2010. They were rebranded once again as "Moose FM 105.5" in March 2013. In May 2014, the station changed their format to "World Class Rock."
On May 1, 2008 CFBK-FM applied to the CRTC to increase its effective radiated power from 5,000 watts to 43,400 watts  and received CRTC approval on June 1, 2009.
On April 23, 2012 Vista Broadcast Group, which owns a number of radio stations in western Canada, announced a deal to acquire Haliburton Broadcasting, in cooperation with Westerkirk Capital. The transaction was approved by the CRTC on October 19, 2012.