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Williams Sound FM+ PRO FM & Wi-Fi Assistive Listening System (4 Receivers)

BH #WIFM557PRO • MFR #FM 557 PRO
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Williams Sound FM+ PRO FM & Wi-Fi Assistive Listening System (4 Receivers)
Key Features
  • Turnkey Assistive Listening System
  • 1 FM T55 Transmitter
  • 4 PPA R37N Bodypack Receivers
  • 4 EAR 022 Surround Earphones
The Williams Sound FM+ PRO FM & Wi-Fi Assistive Listening System is a turnkey system designed to help individuals needing auditory assistance or language interpretation. It helps such users overcome background noise, reverberation, and distance from the sound source.
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Williams Sound FM 557 PRO Overview

The Williams Sound FM+ PRO FM & Wi-Fi Assistive Listening System is a turnkey system designed to help individuals needing auditory assistance or language interpretation. It helps such users overcome background noise, reverberation, and distance from the sound source.

This system includes an FM T55 transmitter, which supports both FM and Wi-Fi, and works with both iOS and Android WaveCAST apps. Also included are 4 PPA R37N bodypack receivers, each featuring seek-button channel selection with access to 17 preset frequencies, as well as 4 EAR 022 surround earphones and 2 NKL 001 neckloops.

Ideal for large-group listening scenarios, the FM+ PRO provides crystal-clear sound anywhere within an operating range up to 1000'. The system is expandable with additional PPA R37N bodypack receivers (available separately) to accommodate any number of listeners. Also included is an ANT 005 coaxial antenna, an RPK 005 rack panel kit, an IDP 008 ADA wall plaque, and two BAT KT6 two-bay chargers with rechargeable batteries.

Williams Sound FM+ Assistive Listening System

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 PPA R37 N Select Channel FM Receiver (No Earphone/Batteries)

The PPA R37 N Select Channel FM Receiver (No Earphone/Batteries) from Williams Sound is a compact and easy-to-use beltpack receiver that allows you to listen to an FM signal in the 72-76MHz band. The receiver offers seek button channel selection between 17 pre-set frequencies, which are digitally synthesized for terrific audio clarity and signal stability. It also features a channel lock capability to prevent accidental changes.

The receiver has an ergonomic design with a detachable belt clip, allowing you to slip it into your pocket or conveniently clip it to your clothing. The standard-sized 3.5mm headphone jack is compatible with mono and stereo headphones and earphones, and also supports induction neckloops and telecoil-equipped hearing aids. The receiver operates on a pair of standard alkaline AA batteries (sold separately). A sleep mode helps to preserve battery life.

Note:
This receiver requires a transmitter operating on a 72-76MHz band. Compatible Williams Sound transmitters: PPA T35, T27, T32, and T36. This receiver is approved by the FCC for operation in US Markets. The receiver cannot be used in all countries. Check with your government's radio regulations for 72-76MHz operation.

You must supply your own earphones/headphones and AA batteries.
Ideal for assisted listening applications in schools, houses of worship, auditoriums, theaters, and more
Compact and easy-to-use design allows you to listen to an FM signal in the 72-76MHz band
Note:
Transmitter required, sold separately.
The receiver's seek button lets you choose between 17 pre-set frequencies, which are digitally synthesized for terrific audio clarity and signal stability. The channel lock capability prevents accidental changes to channel settings
The ergonomic design and detachable belt clip allow you to slip it into your pocket or conveniently clip it to your clothing
The standard-sized 3.5mm headphone jack is compatible with mono and stereo headphones and earphones, and also supports induction neckloops and telecoil-equipped hearing aids
Operates on a pair of standard alkaline AA batteries (sold separately). A sleep mode helps to preserve battery life
UPC: 707976002792
Williams Sound EAR 022 Surround Earphone

The Williams Sound EAR022 is a single-sided, clip-on earphone ideal for use with personal listening devices. The clip is designed to fully surround the ear for maximum stability and comfort. The monaural 1/8" mini-plug is compatible with a wide variety of devices.

  • Hangs on outside of the ear
  • Plug: 1/8" mono
  • Cord: 3.3'
  • Monaural
  • 32 Ohms
  • Recommended for FM receivers and select IR receivers
  • Designed for individuals with mild and low gain hearing loss
UPC: 707976051660
Williams Sound NKL 001 Induction Neckloop for T-Switch Hearing Aids

The Williams Sound NKL 001 is an induction neckloop designed to magnetically couple an audio signal to a telephone coil-equipped (T-Switch) hearing aid. The neckloop has a standard 1/8" mini plug that can be connected to any audio device that has an 8-16 Ohm 1/8" output, such as a beltpack receiver, TV, tape player, etc. The neckloop has a slider so you can adjust the tension, and the 18" cord provides a good amount of slack for use with body-worn devices.

  • Integrated safety breakaway device
  • Cord Length: 18"
  • Adult size
  • Connector: 1/8" mono plug
  • Monoaural
  • Impedance: 8 to 16 Ohms
  • Recommended for FM receivers and select IR receivers
  • For individuals with moderate to severe hearing loss
Williams Sound CHG 3502 Dual-Bay Battery Charger & 4 AA Rechargeable Batteries for Select Bodypack Transmitters and Receivers (Black)

The black CHG 3502 Dual-Bay Bodypack Battery Charger from Williams Sound is used for charging select Williams Sound T36, T46, R37 and Motiva bodypack transmitters and receivers. The two-bay charger allows you to simply dock the components and recharge the NiMH batteries inside without removing them. This configuration includes four AA-size NiMH rechargeable batteries.

The charger's plastic chassis features a red LED for each bay that indicates the battery is being charged. Note that you must have NiMH batteries installed and the components must be set to the NiMH setting. It takes 16 hours to fully recharge the batteries, and it's safe to leave the units in the charger even after the batteries have fully charged. 

Compatible with
  • PLR BP1 loop receiver
  • PPA R37 FM receiver
  • PPA R37-8 FM receiver
  • PPA R38 FM receiver
  • PPA T46 FM transmitter
  • WIR RX 22-4 infrared receiver
  • Motiva PFM T36 personal FM transmitter
  • Motiva PFM R36 personal FM receiver
  • Motiva PFM R33 personal FM receiver
Williams Sound ANT005 - Remote Coaxial Antenna for 72-76 MHz PPA Transmitters

The Williams Sound ANT005 is a 22' coaxial antenna designed to be used with any personal PA system or large-area FM transmitter that operates at 72 to 76 MHz. It provides the system with a maximum operating range.

  • For Use with: PPA T45,PPA T45NET, PPA T27 transmitters
  • Connector Type: F-connector
  • Cable Type: RG 59 coax
  • Nominal Impedance: 75 Ohms
  • Total Cable Length: 22'
  • Active Antenna Length: 80"
  • Compatible with optional 50' antenna extension
UPC: 707976050151
Williams Sound IDP008 - ADA Wall Plaque for Hearing Assistance

The IDP008 from Williams Sound is a self-adhesive wall plaque that alerts your patrons to the fact that your establishment has a hearing assistance system. Perfect for theaters, auditoriums, and more, the plaque is large and easy-to-see.

UPC: 707976002617
Williams Sound RPK005 Rackmount Kit for Half Rack Products

The RPK005 from Williams Sound is a rackmounting kit that allows you to mount 1/2 rack space products in a standard audio rack.

UPC: 707976050861
Kit Contains:

Williams Sound FM+ Assistive Listening System

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 μs
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"

Williams Sound FM 557 PRO Reviews

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