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A/V booth and commissioning

Keyman 🔑 Crew Audio overseer
Micah Phillips Mint Phillips; Brendan Coonce Alex Li

Your team sets up the audio rack and the two media computers, connects the venue wireless microphones and projector link, and helps Alex test the complete system.

Media-computer plan: Alex will bring one laptop; Yuri Chaplygin will bring a second laptop as the backup.

Before starting, meet Micah, review the team’s DC-83, and open Sheet 6-1 in the schematics.

DC-83 — Saturday morning safety review

Reviewed by Ralph Ord on 5 October 2026. Open the final PDF.

Final A/V booth DC-83, reviewed by Ralph Ord on 5 October 2026

Safety:
Keep cases latched while moving them; use wheels and a helper for the 25 kg AHEC-2/1 case. Set equipment on stable surfaces and keep the operator route clear. Keep systems switched off while making connections.

Current CABR-2026 Sheet 6-1 — audio headend wiring

CABR-2026 Sheet 6-1 showing AHEC-2, AMC-3, wireless receivers, media interfaces, media computers and projector HDMI transmitter connections

What your team does

  1. Set up the AHEC-2 audio rack and the two media computers at the A/V booth.
    🗺️ View Sheet 1-1 — A/V booth location

    CABR-2026 Sheet 1-1 showing the A/V booth location within the seating area

  2. Check the labels and connect the booth/headend ends of the 30 m AMC-3 audio multicore (snake) cable, speakON passive-speaker output cables and XLR active-speaker return cables as Sheet 6-1 shows. Audio Cabling delivers the ends; the receiving teams connect their equipment.
  3. Connect each media computer to its AIF by USB cable. Then run an XLR cable from AIF-1 to AMC-3 input 7 and another XLR cable from AIF-2 to input 8. Label both ends.
  4. Collect the venue wireless microphones and receivers. Audio Cabling brings the XLR cables to the receiver and AMC-3 locations; connect the receivers to AMC-3 inputs 5–6.
  5. Connect the PC-1 HDMI cable to the venue’s HDMI transmitter. Label the cable and secure it and the transmitter.
  6. After all connection checks, Jeff Korell inspects the cords and connects booth power. Confirm final speaker positions with Corey and Alex before the sound check and keep them unchanged afterward. Micah and Alex switch on, test at low level and commission the system; test the projectors with venue staff.

For Micah, Alex and the operators

Signal Connection / starting point
PC-1 / PC-2 audio USB cable from each PC to its AIF; XLR cables from AIF-1 / AIF-2 to AMC-3 inputs 7 / 8. AIF Mono on; Ground Lift off; gain about 11 o'clock; media-player volume 100%. Fine-tune during the sound check.
Wireless microphones XLR cables: venue receivers → AMC-3 inputs 5–6; adjust carefully for feedback.
Passive speakers speakON cables: amplifier output A to the front group; output B to the rear group.
Stage monitors XLR cable: DSP output 3 → AMC-3 return A → stage monitors.
Lobby / Accounting XLR cable: DSP output 5 → AMC-3 return B → lobby / Accounting. Output 4 is not used.

Keep food and drinks away from the equipment tables. Personal devices can cause noise, so keep them away from audio equipment if interference is heard.

Use approved media and keep files and outlines private. Get Alex’s approval before connecting the media computers to the internet. Display the theme artwork before each session, during lunch and for about 30 minutes after the program. After the event, delete the media and outlines from both computers as directed.

Commissioning the AHEC-2

For the full commissioning procedure, open CO-160a and go to Chapter 3 → Audio Headend → AHEC-2, pages 3–4 → “Commissioning an Audio Installation.” The points below are only a quick guide.

  1. Connect to the DSP. Use a laptop with an Ethernet port or adapter and an Ethernet cable. CO-160a shows the network settings and how to connect with the DLM System Control Editor.
  2. Load the starting preset. Use the LBD preset or the venue/event preset if one is available.
  3. Test each output zone. Use the approved audio test material and confirm that each output feeds the correct loudspeakers. If an output does not match Sheet 1-1 or 6-2, stop and correct the connection with Alex before continuing.
  4. Check delays and levels. Use the click track to listen where front and rear zones overlap. Then balance the zones with pink noise and an SPL meter. CO-160a sets 82 dB-SPL as the maximum target at the seats closest to a loudspeaker.
  5. Make speech clear and stable. Have several people read at the main microphone. Follow CO-160a to improve speech intelligibility and reduce feedback without making voices sound unnatural.
  6. Finish the whole-system test. Confirm both media computers, all microphones, every loudspeaker zone, stage monitors, lobby/Accounting feeds and the projector link. Save the final DSP settings when commissioning is complete.

Before attendees are admitted, Alex and the operators should listen from several seating areas and agree on a simple backup plan for a failed microphone or computer.

Follow the confirmed dismantling teams and instructions. After the audience has cleared and the safety meeting has finished, Micah leads system shutdown; Jeff isolates and disconnects power before the booth team unplugs cables. Latch and inventory the cases, and return venue equipment to venue staff.

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