KOOL-FM (94.5 MHz) is a commercial classic hits radio station in Phoenix, Arizona. The station is owned by Audacy, Inc. The station is branded as Big 94.5 and features mostly hits of the 1970s, 1980s, and 1990s, and is one of the top performing stations in Phoenix. The station primarily competes with Riviera-owned 95.1 KOAI, which concentrates the 1960s, 1970s and 1980s hits. KOOL-FM's studios are located in downtown Phoenix, and its transmitter is in South Mountain Park.