Key takeaway
Key takeaways
- Bosch & Shure delegate systems
- Confidence monitors & timers
- Presentation & video switching
- Breakout room AV
Why summits need a designed system
End-to-end conference AV: delegate mic systems, confidence monitors, presentation switching, speaker timers and a show-caller who keeps it on time. Conference AV is judged on intelligibility and on the clock. Speech reinforcement in a long reflective ballroom is a harder problem than concert sound, because there is no masking music and every reflection smears a consonant. We design for a measurable target — a speech transmission index of around 0.5 or better is where a room stops being tiring — using distributed loudspeakers aimed down into the seating rather than a single loud source, and delayed so sound arrives coherently from the direction of the stage. Delegate microphone systems from Bosch DICENTIS or Shure Microflex Complete handle multi-speaker panels with request-to-speak queueing and automatic mixing to limit open microphones.
Match the rig to the room
| Scale | Guests | Recommended setup |
|---|---|---|
| Boardroom | 20 – 60 | Table microphone array, one display, two wireless mics, single technician |
| Seminar room | 100 – 300 | Four distributed speakers, one 4 m screen, four wireless mics, confidence monitor |
| Ballroom | 300 – 800 | Eight time-aligned speakers, centre screen plus two IMAG, delegate system for panels |
| Convention hall | 1,000 – 2,500 | Distributed array with delay zones, three-screen set, show caller, full comms |
| Multi-track summit | 2,500 – 5,000 | Main hall plus six breakout rooms, central content control, per-room recording |
Specification
| Specification | Detail |
|---|---|
| Delegate systems | Bosch DICENTIS and CCS 1000 D, Shure Microflex Complete with request-to-speak |
| Speech intelligibility target | STI of approximately 0.5 or better across the seating area |
| Speech level | 70 – 75 dBA at the seat from distributed, time-aligned loudspeakers |
| Automatic mixing | Gating and NOM attenuation to limit simultaneously open microphones |
| Presentation switching | Barco E2, Roland or ATEM with independent screen, stage, record and stream outputs |
| Playback redundancy | Two mirrored presentation machines advanced in parallel by the operator |
| Confidence monitors | Downstage current and next slide, plus a stage-only countdown timer |
| Wireless presentation | Barco ClickShare or equivalent for bring-your-own-laptop speakers |
| Breakout rooms | Independent screen, microphone, recording and technician per room |
| Session capture | Per-room recording with clean programme audio, not camera on-board sound |
Honest alternatives
- The hotel's in-house AV instead of a production companyOur verdict
For a boardroom session or a single-screen seminar, in-house is cheaper, already installed and perfectly adequate. For a multi-speaker conference with IMAG, panels, recording and a running order, in-house kit and staffing are usually sized for the former and get overwhelmed by the latter.
- Gooseneck microphones on the table instead of a delegate systemOur verdict
Plain goosenecks are cheaper and fine for a three-person panel in a small room. A delegate system's request-to-speak queueing and automatic mixing is what keeps a twelve-person panel in a big ballroom intelligible.
- Projection instead of LED screens for a conferenceOur verdict
In a darkened hall with controlled lighting, projection gives a bigger image for less money and is genuinely the right choice. The moment the room is brightly lit for cameras or the ambience the client wants, projection washes out and LED becomes necessary.
Also suited to
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Published 19 April 2026 by the Prime AV Solutions production team.
