Williams AV FM+ 558-24 PRO Assistive Listening System with Rack Panel Kit for Dual FM and Wi-Fi Transmission (24 Receivers)

Williams AV FM+ 558-24 PRO ADA Compliant Assistive Listening System with Rack Panel Kit

The FM+ 558-24 PRO System is a robust assistive listening solution built for large venues, offering powerful performance, user-friendly functionality, and seamless professional installation.

At its core is the FM+ C transmitter, delivering real-time audio over both FM and Wi-Fi with advanced DSP audio processing for clear, intelligible sound. It integrates easily with third-party room control systems for flexible management. Listeners can connect via the WaveCAST app on their smartphones or use one of the 24 included R38 receivers, each equipped with a crisp OLED screen for intuitive tuning across 17 preset wideband frequencies (72.1–75.9 MHz). The system supports unlimited listeners, accommodating large audiences with ease.

Two 12-bay chargers with rechargeable batteries keep receivers ready for use, while an ADA wall plaque helps venues promote accessibility to all guests.

Professional installation is simplified with the included coaxial antenna and rack panel kit, ensuring optimal system performance and a clean, integrated setup.

• For both FM and Wi-Fi Transmission
• Complete Assistive Listening System
• 24 PPA R38N Receivers
• 24 EAR 033 Surround Earphones
• 6 Neckloops, one ADA Wall Plaque
• Antenna, Batteries and Battery Chargers
• Rack Panel Kit

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
• (24) PPA R38N Receivers
• (24) EAR 022 Surround Earphones
• (6) NKL 001 Neckloops
• (2) CHG 3512 12-Bay Chargers
• (24) BAT 026-2 AA NiMH Rechargeable Batteries
• (1) ANT 005 Remote Coaxial Antenna
• (1) IDP 008 ADA Wall Plaque
• (1) RPK 005 Rack Panel Kit