Williams AV FM 558-24 PRO FM+ Large-Area PRO Assistive Listening System Package with (24) R38 Receivers

Ensure every attendee hears clearly across large areas with the Williams AV FM 558-24 PRO — a professional assistive listening system built for venues that require dependable, ADA-compliant audio coverage. This Pro Assistive Listening Devices package ships ready for installation and includes 24 PPA R38 receivers, the FM T55 transmitter, ANT 005 coaxial antenna and a rack panel kit for streamlined deployment. Dante-enabled network audio and dual FM/Wi‑Fi capability let integrators tie the system into existing AV, security and monitoring infrastructures for unified operation.

The FM 558-24 PRO reduces administrative overhead by including two CHG 3512 12-bay chargers, BAT 026-2 rechargeable AA batteries, EAR 022 surround earphones and NKL 001 neckloops so staff can keep gear charged and audience-ready. Rated for 100–240V AC input and supplied with professional mounting hardware, the system is ideal for theaters, houses of worship, courtrooms, airports and stadiums that require robust assistive listening alongside surveillance and event-communications systems. Order the Williams AV FM 558-24 PRO today to simplify large-area assistive listening and improve accessibility and monitoring across your facility.

• Delivers clear, ADA-compliant audio across large venues with 24 R38 receivers for consistent coverage and improved audience experience
• Turnkey professional package includes FM T55 transmitter, coaxial antenna and rack panel kit to simplify installation and reduce setup time
• Dante-enabled and dual FM/Wi‑Fi capable for seamless integration with AV, security, and monitoring networks
• Complete charging and accessory kit (two 12-bay chargers, AA NiMH batteries, earphones and neckloops) keeps receivers ready for back-to-back events
• Scalable system design supports expansion and integration with surveillance, event communications, and facility-wide monitoring workflows