EAN: 707976003850
The FM+ Assistive Listening System from Williams Sound integrates professional WaveCAST Wi-Fi audio server technology, allowing end users to listen with either an FM receiver or with their own smartphone (via the WaveCAST Audio Receiver app). Along with this flexibility comes exceptional audio quality, as the FM+ is built on a professional digital audio (DSP) platform.
The FM+ 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+ supports both the new iOS and Android WaveCAST Audio Receiver apps in addition to all of the current and legacy Williams Sound FM receivers operating on the 72-76 MHz bandwidth.
Most settings can be changed via the front panel interface, or over the hosted web interface. A remote programming guide is available upon request. The FM+ uses the WaveCAST app to provide an easy-to-use, intuitive user interface. You can easily select channels and volume level once your mobile device is connected to the Wi-Fi network. (The app does not work on FM broadcasts.)
Rack Mounting
Optional RPK 005 (single) or RPK 006 (double) rack mount kits supported
Compatible Antennas
ANT 005, ANT 021, ANT 024, ANT 025 (included), and ANT 029
RF Power
Full, medium, low, or off indicated by menu icon
Sleep Mode
RF sleep mode starts when audio is below -18 dB level and with no button pressed for selected duration
Audio Level Indicators
10-LED array that reads -18 to 9 dB at 3 dB intervals
Williams Sound FM T55 Specs
| Display | 3.1" / 7.9 cm OLED |
| Ethernet | 1 x RJ45, 10/100 Base-T IEEE 802.3 Compliant |
| Operating Frequency | 72.1 to 75.9 MHz (17 Wideband Channels) |
| Frequency Accuracy | ±2 ppm Stability, 32 to 122°F / 0 to 50°C |
| Deviation | ±75 kHz Maximum |
| Pre-Emphasis | 75 ¼s |
| RF Field Strength | 80 mV/m at 9.8` / 3 m |
| Transmission Range | Up to 1000` / 305 m with Optional ANT 005 Antenna on Rear Chassis Connector |
| RF Outputs | 1 x #10-32 Stud Connector (Center) 1 x F-Connector (Rear) |
| RF Indicator | Green LED On Air Indicator |
| RF Time Out (Sleep Mode) | Duration: 30 Minutes / 4 Hours / Always On |
| Audio Processor | DSP Based Compression: 1:1, 1.5:1, 2:1; High-Pass / Low-Pass Filter Frequency Control |
| Audio Frequency Response | 31-16,000 Hz, ±3 dB (Re: 1 kHz, ±3 dB) |
| Signal-to-Noise Ratio | 67 dB (Typical) Transmitted RF |
| Total Harmonic Distortion | <0.25% at 1 kHz (RF Output) |
| Common Mode Rejection | >57 dB at 1 kHz, Mic or Line |
| Audio Inputs | 1 x Combination 3-Pin XLR / 1/4" (TRS) for Balanced/Unbalanced Line Level, or Balanced/Unbalanced Microphone with Selectable Phantom Power |
| Audio Input Gain | 0 to -50 dB, in 1 dB Steps |
| Phantom Power | 14.4 VDC Through 2.2 kOhms Resistors to Analog Combo Jack: Pin 2 and Pin 3 on XLR Jack, or Tip and Ring on 1/4" TRS Jack |
| Headphone Output | 1/4" TRS Stereo Jack, Mono Signal, 14.85 mW at +9 dB, Maximum in 33 Ohms (0 to -40 dB Menu Adjustment in 2 dB Steps) |
| Line Output | RCA Jack, -10 dBV (.32 VRMS) Output Impedance: 100 Ohms at 9 dB |
| Microphone | -55 dBV (1.7 mV RMS) 22 dBV (80 mV RMS) +20 dBV (10.0 V RMS) |
| Line | -25 dBV (55 mV RMS) +16 dBV (6.3 V RMS) +20 dBV (10.0 V RMS) |
| Approvals | FCC, RoHS3, WEEE, Industry Canada |
| Power | Input: 100-240 VAC, 50/60 Hz Output: 24 VDC, 750 mA, 18 W |
| Rack Size | 19" Standard One EIA Rack Space High 1/2 Space Wide |
| Operating Temperature | 32 to 122°F / 0 to 50°C |
| Storage Temperature | -4 to 158°F / -20 to 70°C |
| Dimensions | 8.47 x 8.27 x 1.73" / 21.5 x 21 x 4.4 cm |
| Weight | Transmitter: 3.2 lb / 1.45 kg |
Packaging Info
| Package Weight | 5.045 lb |
| Box Dimensions (LxWxH) | 13.1 x 10.5 x 3.5" |
In the Box
- Williams Sound FM+ Assistive Listening System
- TFP 048 Power Supply
- 2-Year Manufacturer Warranty
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