Six Silent Conference spaces with over 3200 infrared headsets used throughout the day
3200
Delegates
1
Days
50
Radiators
The Opportunity
For Australia’s premier CRM-focused technology conference, held annually at ICC Sydney, the client sought to deliver six simultaneous breakout sessions within the same open exhibition space. The goal was twofold: minimise delegate movement across the venue, and deliver a high-tech, seamless audio experience that would impress their savvy, tech-driven audience.
​​
Each session needed to operate as a self-contained presentation zone without sound spill between theatres. In addition, each Silent Conference space was required to double as a live-streamed overflow theatre for the main keynote sessions, giving delegates the flexibility to engage with content from anywhere on the floor.
​​
With more than 3,000 attendees expected throughout the day, the solution needed to be scalable, intuitive, and completely immune to interference – while maintaining professional-grade sound quality.
Event
International Technology Conference
Client
Salesforce
Location
ICC Sydney
Date
28th February 2025
The Technology Behind Australia's Leading CRM Conference
​
Congress Australia delivered a fully integrated Silent Conference system using Bosch Digital Infrared technology – selected for its superior wireless audio quality and total immunity to RF interference.
We deployed six standalone Bosch systems, one per breakout theatre, each operating on a separate infrared carrier to ensure complete signal isolation between theatres. Close to 50 Bosch infrared radiators were installed across the exhibition floor, strategically positioned to guarantee reliable coverage across all seating and standing areas.
​
To streamline access and eliminate distribution bottlenecks, over 3,200 headsets were pre-secured to seats using custom, reusable silicone sleeves. Each receiver was tested and verified before the event, with our technical team providing dedicated onsite support at every breakout space for the duration of the day.​
Crucially, our Silent Conference systems interfaced seamlessly with all event AV suppliers and production infrastructure. The use of digital infrared technology guaranteed no risk of interference with wireless microphones, stage comms, video feeds, or control systems – ensuring a reliable and disruption-free experience for all stakeholders.
When Scale Meets Complexity- Here’s the Solution:
Delivering six simultaneous Silent Conference theatres for more than 3,000 delegates within a single open exhibition space required meticulous planning, technical precision, and seamless coordination across multiple teams.
​
Key challenges included managing the distribution of over 3,200 headsets without causing congestion, engineering flawless infrared coverage across six separate zones, and integrating smoothly with venue, AV, staging, production, and client teams — all within tight event timelines.
​
To address this, Congress Australia:
-
Pre-secured and tested every headset prior to doors opening, eliminating queues and ensuring smooth delegate flow
-
Carefully engineered radiator placement and signal zoning to guarantee complete coverage and zero interference between theatres
-
Deployed separate infrared carriers for full signal isolation
-
Implemented a centralised project management model with a dedicated coordinator overseeing all stakeholders
-
Provided continuous onsite technical support throughout the event
Seamless at scale
The result was a seamless, high-impact Silent Conference experience for thousands of delegates. Attendees enjoyed clear, uninterrupted audio in every breakout theatre, with the added convenience of tuning into keynote sessions from any location on the floor.​
The client praised the technical reliability, clean AV integration, and delegate ease of use, noting that the system delivered exactly what was promised: a high-impact, high-tech solution tailored for a demanding event environment.​
This project reinforced Congress Australia’s capability to deliver large-scale, interference-free Silent Conference systems with precision, professionalism, and attention to detail.
