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To Know God And To Make Him Known

Audio Sound Reinforcement System (SRS)

The Audio SRS is made up of three sub systems: Main House System (MHS), Stage Monitor System (SMS) and 70-volt Campus-Wide Audio System (CWAS).

The House Sound system currently has 24 input lines from the stage that are passed to the mixing board in the sound booth using a ProCo 24x4 channel snake.  The four snake returns are passed from the mixing board’s four aux sends back to the stage for the Stage Monitors.  The main mixing board is a Mackie 24x8 board and a Mackie 24e extension giving 48 total input channels and is used for a front of house sound reinforcement mix, monitor mix and a recording mix.

Inputs include a Shure MX412 with a 184 head podium microphone and an AKG baptistery microphone.  The Choir microphones are 2 Rode NT1-A microphones.  The Ensemble uses 1 Rode NT1-A microphone.  The wireless microphones include the following: a Shure SM58 hand-held VHF, a Shure 184 lapel with a VHF belt pack, a Shure 183 lapel and two Countryman E8 head-set microphones using UHF belt-packs.

The 8 cordless microphones (4 additional wireless microphones will be purchased in the near future) are passed through eight dbx 286a microphone preamps and then passed to the Mackie 24x8 mixer via an eight-channel snake.

The front of house sound reinforcement mix is a two channel mono mix that is passed to a Rane SM26B six-channel splitter.  From there, the six channels are fed out as follows:

  • Channel 1 and 2 are fed to the House speaker management system.
  • Channel 3 is fed to the SoundMate hearing impaired system.
  • Channel 4 is fed to a 70-volt campus-wide speaker system.
  • Channel 5 and 6 are fed to the CCTV video distribution system.

A pair of Crown CE1000 amplifiers mounted under the stage power the ElectroVoice Sx80B Stage Monitor System (SMS) speakers located on the stage.  A Furman PL-Plus power conditioner powers and protects these amplifiers.  The power conditioner and the amplifiers are mounted on an aluminum 22-space rack that is located under the stage.

Signal processing is performed by a dbx DriveRack PA speaker control system that acts as a real-time analyzer, compressor, limiter, equalizer and crossover.

A Crown CTs1200 amplifier powering the main house loud speakers and a Crown CE2000 amplifier powering the Subwoofers provide amplification.  A Furman PS-PRO power conditioner powers and protects these amplifiers.

The speaker system for the Main House System (MHS) consists of a pair of EAW MK2194e 2-way full range main house loud speakers using an OmniMount 60.0 WA wall mounts along with safety wires and a pair of JBL MPro MP418S 18-inch Subwoofers mounted to either side the Crow’s Nest facing the stage.

A Behringer UB1002 mixer controls the 70-volt Campus-Wide Audio System (CWAS).  This mixer outputs a two channel mono signal to two Radio Shack 20-amp 70-volt amplifiers.  One amplifier powers the speaker array in the old building and the other amplifier powers the speaker array in the new building.  The speakers are mounted in all of the hallways, bathrooms and the fellowship hall.  A Shure 55SH Series II Vocal Microphone is used for public address statements.  A Tascam CD301 CD player is dedicated to the CWAS.  This gives the flexibility to play a CD to the speakers in the CWAS without affecting the Main House SRS.  Likewise, anything coming from the Main House SRS can be routed to the CWAS speakers.

The Television sets in the Nursery Check-in Room and the Choir Room (which is used for crying children and nursing mothers) uses the sound from the CCTV system that is independent of the audio signal being fed to the CWAS.  If the CWAS audio feed is turned off, the television sets will still have an audio signal being fed to them.

Please see the Photo Gallery for pictures of this system.