I’d like to share my experience installing an Auracast transmitter in my church, which has a seating capacity of approximately 400 people.
We use this transmitter (link).
The transmitter is positioned in the front right area, behind a concrete pillar where the choir and audio equipment are located. It is mounted on the back of the sound mixer desk.
For the sound setup, we used the included RCA-to-analog 3.5mm cable to connect the sound mixer to the transmitter and powered the transmitter with the bundled USB-C power adapter. After configuring the audio routing on the mixer and setting the transmitter to Auracast SQ mode (needed for Auracast capable hearing aids), we successfully received sound through a list of Auracast receivers used for testing - Galaxy Buds2Pro Earbud, Jabra EP20 Hearing Aid, JBL TourOneM2 Headphone, HomeSpot JM320/JY300 Headphones, Sennheiser MTW4 Earbud, Sony LinkbudS Earbud. We also tried Earfun AirPro4 Earbud, but it didn’t work.
We used the Auracast Assistant feature in each receiver’s iOS companion app to connect to the broadcast, except for the Buds2 Pro and LinkBuds, which were connected using the Samsung Flip5’s native Broadcast Assistant. Additionally, the HomeSpot JM320 and JY300 only require the app for the initial connection. Once joined and saved, they remember the broadcast and automatically reconnect on subsequent power cycles.
Regarding performance, the range exceeded our expectations—we anticipated potential dead zones, but none were found. There were no latency issues, and the sound remained stable for all receivers throughout the service, with about 80% capacity. The only exception was the Buds2Pro in the left back corner, which experienced tiny audio disruptions 2 times during an hour of service.