WILLIAMS AV FM 557-12 FM Plus Large-Area Dual FM and Wi-Fi Assistive Listening System with 12 FM R37 Receivers FM 557-12 WLS-FM-557-12

WILLIAMS AV FM 557-12 FM Plus Large-area Dual FM and Wi-Fi assistive listening system with 12 FM R37 receivers and FM T55 transmitter. The WILLIAMS AV FM T55 Plus integrates professional WaveCAST Wi-Fi audio server technology into a Williams Sound FM assistive listening system. End users can now listen with either an FM receiver or with their own smartphone (via the WaveCAST Listening App). Along with this flexibility comes exceptional audio quality, as the FM Plus is built on a professional digital audio (DSP) platform. Added plus: Its optional Dante interface provides integrators with a full audio networking solution.

The FM Plus is designed to support those who want to use their own smartphones and headphones for a more discreet assistive listening experience. Simplicity is also available for those who want a more traditional assistive listening system with a dedicated FM receiver and headset. Venues no longer need to choose between providing FM or Wi-Fi assistive listening systems. FM Plus supports both the new iOS and Android WaveCAST Apps -- in addition to all of the current and legacy Williams Sound FM receivers operating on the 72-76 MHz bandwidth.

The FM Plus can have most settings changed via the front panel interface, or the hosted web interface.
A remote programming guide is available upon request.

This version is not Dante compatible. For Dante compatibility, see the FM T55 D.

The FM Plus uses the WaveCAST app to provide an easy-to-use, intuitive user interface. It is available in iOS or Android. Listeners easily select channel and volume level once their personal device is connected to the Wi-Fi network. The app does not work on FM Broadcasts.

Note: The FM + connects to the installation location's Wi-Fi Network. It does not provide a network on its own. The Wi-Fi network will need to be installed and established before the FM + can be used.

Flexible and simple. The FM receiver features easy-to-use, seek-button channel selection with access to 17 pre-set wideband frequencies between 72-76 MHz. Compatible with the following Williams Sound transmitters: PPA T46, PPA T45, PPA T45NET, PPA T27. Digitally synthesized for even greater audio clarity and stability. A versatile 3.5mm stereo/mono jack allows for a variety of earphone and headphone options, and is neckloop/telecoil-equipped-hearing-aid compatible.
No earphones or batteries.

Features:

• Seek-button access to all 17 wideband frequencies in the 72-76 MHz bandwidth
• Channel-lock capability
• Battery-saving sleep mode
• Low-battery indicator
• Field tunable

Specifications:

• Dimensions: 8.45" W x 8.25" D x 1.72"H (21.5 cm x 21 cm x 4.4 cm)
• Weight: Transmitter: 3.2 lbs (1.45 kg)
• Color: Black/Silver with silver legends on the front, white legends on the back
• Rack Mount: Standard 19" Rack, one EIA rack space high, 1/2 space wide.
• Power Supply: Desktop Style Transformer (TFP 062); Input: 100-240 VAC, 50/60 Hz. IEC Line Cord; Output: 24 VDC, 750 mA, 18W. 2.5mm ID center positive barrel connector
• Power ON Indicator: Push On/Push Off latching power button, backlit green indicates power ON, backlight off indicates power OFF, fading from bright to dark indicates Sleep Mode.
• Temperature Range: Operating: +32° F to +122° F (0° C to 50° C); Storage: -4° F to +158° F (-20° C to 70° C)
• User Interface: 3.12" High Resolution OLED display with selections via buttons. Hosted Web page. Remote control and monitoring.
• Dante: Only available on FM T55 D
• Ethernet: RJ-45 on back of unit supports CAT 5e cable lengths up to 328 feet (100 meters); 10/100 Base-T IEEE 802.3 compliant, unique MAC address
• RF Section
• Operating Frequencies: 72.1-75.9 MHz , 17 wideband channels (selectable)
• Frequency Accuracy: ± 2 ppm stability, 0-50° C
• Deviation: ± 75 kHz maximum
• Pre-Emphasis: 75