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CJMX
Broadcast area	Sudbury, Ontario
Branding	EZRock
Slogan	Sudbury's music at work.
First air date	1980
Frequency	105.3 MHz (FM)
Format	adult contemporary
ERP	100 kW
Owner	Rogers Communications
Website	http://www.ezrocksudbury.com/

CJMX is a Canadian radio station, which broadcasts an adult contemporary format at 105.3 FM in Sudbury, Ontario. The station uses the on-air brand EZRock (pronounced "Easy Rock", not "E-Zed Rock".) The station is owned by Rogers Communications.

CJMX was established in 1980 by F. Baxter Ricard, the owner of Sudbury's CHNO and CFBR. The stations became part of Mid-Canada Radio in 1985, and were then sold to the Pelmorex Radio Network in 1990. Pelmorex's ownership of the stations was controversial, as most of their programming was delivered by satellite from a facility in Mississauga.

After a change in CRTC media ownership rules, Pelmorex sold CJMX to Telemedia, the owner of CJRQ and CIGM, in 1998. (Pelmorex subsequently sold its other stations in Sudbury to Haliburton Broadcasting Group.) In the late 1990s and early 2000s, CJMX overtook former ratings leader CJRQ in the market, based in part on actively promoting itself as a station suitable for workplace listening. In 2006, however, it lost that status to a resurgent CHNO after the latter station flipped to an adult hits format.

The Telemedia stations were sold to Standard Broadcasting in 2002; before that sale closed and received regulatory approval, the stations were sold in turn to Rogers later the same year.

Under Rogers ownership in 2002, the station laid off several employees, including Dave Lindsay, afternoon drive time disc jockey and president of Communications, Energy and Paperworkers Union Local 725-M, which represented staff at CJMX and CHNO [1]. Lindsay was replaced in the shift by program director Mike Allard. It was alleged in the press that Lindsay may have been targeted as a union leader, and the layoff was contested; eventually, Lindsay returned to the afternoon shift.

• CJMX