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Liquidation Sale Williams Av Fm 557-24 Pro Fm Plus Dual Fm & Wifi Assistive Listening System With 24 Receivers Kit [1tCnZmJE]

$78.99 $252.99 -69%

Part of the FM+ Assistive Listening Systems lineup from Williams AV, the FM 557-24 PRO is an FM+ Large-area Dual FM and Wi-Fi® assistive listening system that includes (24) FM R37 receivers. Similar to the FM 557-24 system, it adds coaxial cable and

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Part of the FM+ Assistive Listening Systems lineup from Williams AV, the FM 557-24 PRO is an FM+ Large-area Dual FM and Wi-Fi® assistive listening system that includes (24) FM R37 receivers. Similar to the FM 557-24 system, it adds coaxial cable and rack-mount kit as well, enabling professional installation.

FM+ Systems from Williams AV

This groundbreaking tech provides an industry-first choice of employing traditional FM receivers or using personal electronic devices over Wi-Fi for hearing assistance. Along with this versatility comes exceptional audio quality, as FM+ is assembled on a professional digital audio (DSP) platform. This technology is designed to support those who want to use their own smartphones and headphones for a more discreet assistive listening experience. Simplicity and flexibility is also available for those who prefer a more traditional assistive listening system with a dedicated FM receiver and headset. Now, venues will no longer need to choose between providing FM or Wi-Fi assistive listening systems. FM+ supports the iOS and Android WaveCAST Apps as well as the Wi-Fi Receiver-- in addition to all of the current and legacy Williams AV FM receivers that operate on the 72-76 MHz bandwidth.

Applications

Assistive Listening • Interpretation • Audio Description • Presentation • Education/Training

Includes

  • (1) FM T55 transmitter
  • (24) PPA R37N 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

System Features

  • Professional audio inputs: ¼"/XLR, phantom power, line level output jack.
  • Audio presets -- hearing assistance, music, voice and custom
  • 16-bit DAC provides 48 kHz sample rate
  • 10-segment LED bar graph

Specifications

  • Note: specifications and further information can be found within the items located under the "Documentation" tab above.

What Our Customers Say

December 30, 2025

Absolutely no complaints!

The build quality is impressive, and it's a very powerful tool.

- Nixon B..

December 30, 2025

Absolutely no complaints!

The quality is superb and the performance is just outstanding.

- Brendan T..

December 30, 2025

Absolutely no complaints!

It's a very well-made and effective product. A very good purchase.

- Mathias K..

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