Church Sound Reinforcement systems include the following item:
1. Microphones for preacher and choir
2. Mixer / Amplifier or separate mixer, equalizer, and amplifier
3. Speakers
4. Cables to interconnect the components
for additional items for church sound reinforcement systems such as:
1. Tape deck
2. CD player
3. Monitor speakers or Headphones
4. Fill-in speakers for under balcony seats
5. Rear Fill-in speakers for long rooms
Configuration of Church Sound System:

It's inline frame from http://audiofarmers.blogspot.com