At the time KFAC-FM was established, it generally simulcast KFAC's programming, but began to deviate from this to participate in a series of pseudo-stereo concert broadcasts with KFAC from the Hollywood Bowl Amphitheatre, starting in 1953. KFAC was fed the audio from a microphone pointed at one end of the Bowl, and KFAC-FM the audio from a microphone at the other end of the Bowl. Originally based at the transmitter site for KFAC in Los Angeles' Crenshaw district and operated at 104.3 MHz, the station moved to 92.3 MHz and the transmitter was moved to the top of Mount Wilson, both on July 1954, and was officially dedicated during a pseudo-stereo concert broadcast from the Bowl. Because KFAC-FM made this move to Mount Wilson prior to the FCC enacting limits for power output by FM stations in 1962, it is formally classified as a "Superpower" FM by operating at a maximum power level, but with the antenna being placed well above the height limit. These pseudo-stereo broadcasts were offered over both stations for 12 hours each week over the next decade, ending after KFAC-FM converted to a multiplexed signal in 1964.