This sound system is applicable for a small to medium sized church / chapel / temple / mosque / synagogue, using just two microphones or a live sound mixer with multiple microphones. Two wireless microphones could include one receiver of a pocket transmitter for a lavalier or headset mic, and the other receiver for a wireless handheld mic. Line inputs handle either an electronic keyboard and CD player, or can accept outputs from a larger live music mixing board. There is a central cluster above the dais, and two speakers along each side for fill. The perimeter speakers are configurable for stereo music in a small church, or mono with alignment delays in a larger church. The service is to be heard in the narthex / lobby through ceiling speakers. A cry room hears the service through its local speaker.
This system has just two line inputs handled by a single RAD3. Since DR remotes can be plugged into a RAD port, three remotes are available, one in each room. The DR6 is the master control for all inputs, easy enough to be operated by Pastor Joe, and it can be located in the pulpit, on a wall, or on a table. The Narthex and Cry Room volumes can be adjusted by either the DR6 or the DR1's in each room, and levels will track and update on the other remote.
Many Fire Departments and city building codes require sound systems turn off so the alarm can be heard. Alarm systems usually provide a relay closure on a terminal block for the sound system. A twisted-pair of wires attaches to the HAL3s Logic In terminal 1 and ground to mute the system in case of alarm.