Williams Sound FM 557-12 FM+ Large Area Assistive Listening System

The FM 557 system package is a complete turnkey solution that includes 12 PPA R37N receivers and an FM+ transmitter for both FM and Wi-Fi transmission from the same box.

This system features the cutting edge PPA T55 transmitter (replacing the T45 FM transmitter) with multiple digital audio input options and an OLED display with easy-to-manage navigation, and network control features.

Each PPA R37N receiver features a seek button channel selection with access to 17 selectable wideband frequencies between 72.1-75.9MHz. The system is expandable, accommodating any number of listeners. This system complies with 2010 ADA guidelines for hearing assistance all for nearly the same cost as traditional FM systems.

• For both FM and Wi-Fi Transmission
• Complete Assistive Listening System
• Twelve PPA R37N Receivers
• Twelve EAR 033 Surround Earphones
• Three Neckloops, one ADA Wall Plaque
• Antenna and Batteries

Spec Sheet

Wi-Fi Assistive Listening Brochure

• (1) FM T55 Transmitter
• (12) PPA R37N Receivers
• (12) EAR 022 Surround Earphones
• (3) NKL 001 Neckloops
• (1) IDP 008 ADA Wall Plaque