The FM+ Intercom System is a professional wireless audio solution designed for venues that require clear sound, simple operation, and ADA-compliant assistive listening. Combining FM and Wi-Fi transmission in a single platform, it supports both dedicated receivers and personal mobile devices.
This package includes 12 PPA R37 receivers and the FM+ transmitter, making it well-suited for courtrooms, lecture halls, houses of worship, and institutional environments that need dependable, scalable audio delivery.
$4,670.00
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The Williams AV FM+ Intercom System delivers reliable one-way audio using dual FM and Wi-Fi transmission from a single transmitter.
At the center of the system is the PPA T55 transmitter, which replaces the older T45 model and introduces improved DSP audio processing, multiple digital input options, and an OLED display for straightforward setup and monitoring.
Each PPA R37 receiver is designed for ease of use in shared or public settings. A single seek button allows users to quickly tune across 17 wideband FM channels from 72.1 to 75.9 MHz, reducing user confusion and setup time.
Expandable and installation-ready, this intercom system supports assistive listening, presentations, and venue-wide audio distribution while complying fully with 2010 ADA hearing assistance guidelines.
Williams Sound | Assistive Listening Systems
$8,085.00
Williams Sound | Intercom Systems
$275.00
Williams Sound | Accessories
$100.00
Williams Sound | Accessories
$140.00
This intercom system is designed for one-way audio distribution and assistive listening in venues such as courtrooms, lecture halls, churches, and public facilities that require clear, wireless audio coverage.
This version does not include Dante network integration. It focuses on FM and Wi-Fi audio delivery, making it a simpler and more cost-effective intercom system for venues without AV-over-IP requirements.
Yes. The FM+ transmitter supports Wi-Fi audio streaming, allowing users to listen through the WaveCAST app on iOS or Android devices instead of using physical FM receivers.
R37 receivers feature a single seek button for channel selection, minimizing user error and setup time. This makes them ideal for public-facing intercom system deployments where simplicity is critical.
The system supports an unlimited number of listeners. Additional FM receivers can be added at any time, and Wi-Fi listeners are limited only by the venue’s wireless network capacity.
FM range is designed for large rooms and auditoriums and depends on antenna placement and building structure. Wi-Fi listening range follows the coverage of the venue’s wireless network.
Absolutely. You can add more R37 receivers, accessories, or upgrade to FM+ PRO or Dante-enabled systems as your venue’s communication or accessibility needs grow.
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