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Williams Sound
FM 557-24 PRO D
FM+ PRO System Package (24 R37 receivers & Dante)

Manufacturer SKU: FM 557-24 PRO D
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Our Price: $7,770.00
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Top FM 557-24 PRO D Specifications
  • Includes
  • (1) FM T55 D transmitter
  • (24) PPA R37N receivers
  • (24) EAR 022 surround earphones
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The FM 557 PRO system package is a complete turnkey solution. It includes 24 PPA R37N receivers and an FM+ D transmitter for both FM and Wi-Fi transmission from the same box. The PRO bundle includes a coax cable, and rack panel kit for professional installation.

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.


  • (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

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