Williams AV FM+ 558-12 Assistive Listening System for Dual FM and Wi-Fi Transmission (12 Receivers)

Williams AV FM+ 558-12 ADA Compliant Assistive Listening System

The FM+ 558-12 system is an ADA-compliant assistive listening solution designed for mid-size venues, delivering clear, reliable, and accessible audio.

At its core, the FM+ T55C transmitter provides dual FM and Wi-Fi audio with DSP processing for superior sound quality. It seamlessly integrates with existing sound systems and supports third-party room controls for easy management.

Guests can use the 12 included R38 receivers with a high-resolution OLED screen for easy tuning and clear, digital audio. Or listen to the Wi-Fi audio using the WaveCAST app or a WAV Pro receiver (sold separately). Surround earphones provide a comfortable, over-ear listening experience.

An ADA plaque is included to help venues promote hearing assistance availability.

• Combines FM and Wi-Fi audio streaming from a single device
• Includes (1) FM T55C transmitter and (12) R38N receivers
• Compatible with smartphones via the WaveCAST app for wireless listening
• Multiple digital audio input options
• OLED display and network control for easy setup and monitoring
• Fully expandable to support an unlimited number of receivers
• Meets ADA hearing assistance requirements
• Includes ADA wall plaque for venue compliance signage
• Ideal for houses of worship, auditoriums, classrooms, and public venues

FM+ User Manual

FM 558 Data Sheet

FM+ Quick Start Guide

FM T55C Data Sheet

FM T55C Manual

PPA R38N Data Sheet

• (1) FM T55C Transmitter
• (12) PPA R38N Receivers
• (12) EAR 022 Surround Earphones
• (3) NKL 001 Neckloops
• (1) IDP 008 ADA Wall Plaque