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Loudspeakers

Keyman 🔑 Crew
Corey DeLoach Melissa DeLoach; Mike Vigil; Lilia Vigil; Mike Mundell; Bethany Mundell

Your team safely places and aims the six passive loudspeakers. You also place the two stage monitors and the active speakers for the lobby and Accounting.

Before starting, meet Corey, review the team's DC-83, and open sheets 1-1, 4-1 and 6-2 in the schematics.

Safety:
Use two people to mount or remove a loudspeaker. Wear hard hats while working with raised speakers. Keep hands clear of moving parts. Connect the speakON loudspeaker cable before raising the speaker, and make sure every lock is secure before letting go.



Tripod placement and tripping hazards

placement:
Place each tripod partly inside its chair section so the legs are sheltered from delegate foot traffic. Keep aisles, exits and walking paths clear. Set the tripod with one leg forward and two legs at the back, keeping the loudspeaker's tilt above the forward leg. Keep the legs fully opened and locked.

Agree the final speaker positions and tripod orientation with Corey and Alex before the sound check, and keep the positions unchanged afterward.

What your team does

  1. With Corey, mark the six positions from sheet 1-1 and make sure no speaker or tripod blocks an exit.
  2. Set up each passive loudspeaker using the CO-160a quick guide below. Complete one loudspeaker as far as practical before moving to the next.
  3. Place the two stage monitors on the stage floor as sheet 4-1 shows. Agree the exact position with Stage.
    • Leave the XLR cable and power connections easy to reach, and keep the cables out of participant walking paths.
    • When Audio Cabling hands over the labelled XLR cable, connect it to each stage monitor. Power handles the mains-power connection.
    • Confirm the XLR cable handoff with Audio Cabling and the power connection with Power before final placement.
  4. Place the lobby and Accounting speakers on stable surfaces near safe wall sockets. These active speakers do not use the passive-speaker tripods.
    • Keep the XLR cable and power connections neat, clear of walkways, and away from wet areas.
    • When Audio Cabling hands over the labelled XLR cable, connect it to the lobby/Accounting active speaker. Power handles the mains-power connection.
    • Confirm the final position with Audio Cabling and Power before testing.
  5. Agree the final speaker positions and tripod orientation with Corey and Alex before the sound check. Then testTest every speaker with the A/V Booth team and walk the seating area with Alex. Keep the positions unchanged afterward; adjustAdjust audio levels only as directed.

Set up each passive loudspeaker — CO-160a quick guide

These steps come from CO-160a Chapter 3, Tripods (TP-1), pages 5–6, Figures 58–59. Use the current CABR-2026 drawings for the actual speaker position, height and aiming.

Current CABR-2026 Sheet 6-2 — loudspeaker wiring

CABR-2026 Sheet 6-2 showing passive and active loudspeaker wiring

1. Open and secure the tripod — Figure 58

  • Put the tripod on an even, stable surface.
  • Loosen the leg clamping screw ①. Open the legs until the cross braces ② are horizontal, then retighten the screw.
  • Point one tripod leg forward in the direction the loudspeaker will tilt, with the other two legs at the back.
  • Add the 5 kg sandbags Corey assigns.
📘 View CO-160a Figure 58 — TP-1 tripod

CO-160a Figure 58 showing TP-1 tripod setup and controls

2. Mount and aim the loudspeaker — Figure 59

  • Set the tilt adapter to about 5° downward and tighten the upper clamping screw ⑦.
  • Turn lock ring ⑤ toward OPEN.
  • Using two people, place the loudspeaker on the adapter.
  • Keep the tilted loudspeaker above one tripod leg for stability.
  • Turn lock ring ⑤ toward CLOSE until the loudspeaker is secure.
  • Aim it according to the current CABR-2026 drawing.
📘 View CO-160a Figure 59 — tilt/angle adapter

CO-160a Figure 59 showing the loudspeaker tilt-angle adapter

3. Connect the speakON cable before raising

  • Confirm Audio Cabling has brought the correct labelled speakON cable.
  • Connect the speakON cable before raising the loudspeaker.
  • Leave enough slack so raising the tripod does not pull on the speakON connector.
  • Keep the speakON cable clear of the tripod mechanism and walkways.
  • If the speakON cable is not ready, leave the tripod lowered and return to it later.

4. Raise and lock the tripod — Figure 58

  • Loosen the height clamping screw ④.
  • Hold button ⑤ while turning crank ⑥ to raise telescopic section ③.
  • Raise the loudspeaker to the height in the table below.
  • Release button ⑤ and continue turning the crank until the safety pin clicks into place.
  • Tighten height clamping screw ④.
  • Check the tripod, adapter, loudspeaker, sandbags, speakON cable and all locks before moving away.

For the keyman

Group Position and height Aim
Front: SPK-1.1, 1.2, 1.3 About 4 m from the first row; normally 2.5 m high, with 1.2 at 2.4 m Toward sections A, B and C
Rear: SPK-2.1, 2.2, 2.3 About 3.5 m from the first row; 2.5 m high Toward sections D, E and F

All six passive speakers use about 5° downward tilt. If a raised speaker is above a walkway, keep at least 2.1 m clear underneath or use a barrier.

When your speaker work is finished: Check with Lacey and help Audio Cabling with the remaining cable work.

The PLS-1, TP-1 and ALS-4 cases are heavy and must be rolled with enough helpers. Sunday teardown assignments will be added later; do not lower any speaker until the audience has left, power is off, and the teardown briefing is finished. When dismantling, lower the tripod completely before removing the loudspeaker, and use two people to lift it off.