Williams Sound FM 457-24 PRO Personal PA FM Assistive Listening System (24 Receivers)

BH #WIFM45724PRO • MFR #FM 457-24 PRO
Williams Sound
Williams Sound FM 457-24 PRO Personal PA FM Assistive Listening System (24 Receivers)
Key Features
  • Turnkey Assistive Listening System
  • 24 PPA R37N Bodypack Receivers
  • PPA T45 Transmitter
  • 24 EAR 022 Surround Earphones
The Williams Sound FM 457-24 PRO Personal PA FM Assistive Listening System is a complete turnkey solution designed to help individuals needing auditory assistance or language interpretation overcome background noise, reverberation, and distance from the sound source. It includes a PPA T45 transmitter with multiple digital audio input options and an OLED display with easy-to-manage menu navigation, 24 PPA R37N bodypack receivers, each featuring seek-button channel selection with access to 17 preset frequencies, 24 EAR 022 surround earphones, and six NKL 001 neckloops.
Special Order
Expected availability: 7-10 business days
$5,368.00

Important Notice

  • This item is noncancelable and nonreturnable.

Williams Sound FM 457-24 PRO Personal PA FM Assistive Listening System (24 Receivers)


Bryan Y., B&H A/V Expert

True Know-How

Ask Our Experts

800.606.6969

Williams Sound FM457 Overview

  • 1Description
  • 2Williams Sound PPA T45 Assistive Listening Transmitter
  • 3Williams Sound PPA R37 N Select Channel FM Receiver (No Earphone/Batteries)
  • 4Williams Sound EAR 022 Surround Earphone
  • 5Williams Sound NKL 001 Induction Neckloop for T-Switch Hearing Aids
  • 6Williams Sound CHG3512 - 12-Bay Body-Pack Charger
  • 7Williams Sound ANT005 - Remote Coaxial Antenna for 72-76 MHz PPA Transmitters
  • 8Williams Sound RPK005 - Rack Mount Kit for Half Rack Products
  • 9Williams Sound IDP008 - ADA Wall Plaque for Hearing Assistance

The Williams Sound FM 457-24 PRO Personal PA FM Assistive Listening System is a complete turnkey solution designed to help individuals needing auditory assistance or language interpretation overcome background noise, reverberation, and distance from the sound source. It includes a PPA T45 transmitter with multiple digital audio input options and an OLED display with easy-to-manage menu navigation, 24 PPA R37N bodypack receivers, each featuring seek-button channel selection with access to 17 preset frequencies, 24 EAR 022 surround earphones, and six NKL 001 neckloops.

Ideal for large-group listening scenarios, the FM 457-24 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 025 whip antenna, an ANT 005 coaxial antenna, an RPK 005 rack panel kit, a TFP 048 power supply, a WLC 004 main power cord, a 3' WCA 013 RCA audio cable, two CHG 3512 12-bay chargers with 24 2-packs of AA NiMH rechargeable batteries, and an IDP 008 ADA wall plaque.

Williams Sound PPA T45 Assistive Listening Transmitter

The Williams Sound PPA T45 transmitter offers multiple digital audio input options, and an OLED high-resolution screen with simple menu navigation. It features 3 microprocessors and high-quality audio and RF performance, designed to take the guesswork out of complex audio installations. Simply select among voice, music, or hearing assistance in the application preset menu, and this transmitter quickly configures itself. With a range of up to 1000 feet, the PPA T45 is ideal for large venues where superior coverage is essential.

Features:

  • Multiple digital audio inputs (AES, SPDIF) provide direct connection to digital signal sources
  • OLED high-resolution screen with simplified menu navigation, offers comprehensive and convenient access to full system functions
  • DSP audio processing
  • Sleek and stylish new design
  • Simple set-up and operation
  • 1000’ operating range
  • OLED display, push-button menus
  • Microprocessor controlled
  • Adjustable RF power output
  • Combo XLR, 1/4” TRS inputs
  • Lifetime PLUS Limited Warranty (90 days on accessories)

 

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

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

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 CHG3512 - 12-Bay Body-Pack Charger

The CHG3512 from Williams Sound is a 12-bay charger designed for use with a variety of transmitters and receivers including the PLR BP1 loop receiver, PPA R37 & R38 receivers, PPA T46 FM transmitter, and the WIR RX22-4 infrared receiver. The rack charges your devices in about 16 hours, keeping them organized and saving you from having to continually replace alkaline batteries. Each bay has its own LED indicator that flashes when charging is complete. The charging system includes the 12-bay unit, a power supply, and a power cord.

  • Drop-in, 12-unit charger for body-pack style transmitters and receivers
  • For use with:
    • PLR BP1 Loop receiver
    • PPA R37 FM receiver
    • PPA R38 FM receiver
    • PPA T46 FM transmitter
    • WIR RX22-4 Infrared 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

Williams Sound RPK005 - Rack Mount Kit for Half Rack Products

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

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.

Williams Sound PPA T45 Assistive Listening Transmitter Specs

Rack MountStandard 19" Rack, one EIA rack space high, 1/2 space wide
1-2 units can be mounted in a single rack space with optional RPK 005 (single) or RPK 006 (double) rack mount kits
Power SupplyDesktop-style transformer (TFP 048)

Input: 100-240 VAC, 50/60 Hz, IEC line cord

Output: 24 VDC, 750 mA, 18 W, 2.5 mm ID center positive barrel connector

Approvals: UL, CUL, Energy Star V, CSA listed
IndicatorsPower Indicators: Push On/Push Off latching power button, backlit Green indicates Power ON, back-lit off indicates power OFF

Audio Level Indicators: 10-LED array that reads -18 to +9 dB at 3 dB intervals. 7 Green, 2 Amber, and 1 red LED. Green LEDS indicate normal operating audio level peaks, Amber LEDS indicate close to overload peaks, Red LED indicates overload peaks

Temperature RangeOperating: +32 to +104°F (0 to 40°C)
Storage: -4 to +158°F (-20 to 70°C)
Menu OptionsAudio Presets (Music, Voice, Hearing Assist, Custom), Frequency/Channel selection, Frequency/Channel mode, Audio Input Source (Microphone, Line, Phantom, Digital AES/EB, Digital S/PDIF), High Pass Filter, Low Pass Filter, Compression, RF Output Power, Screen Saver Delay, Test Tone (400 Hz), Headphone Volume, Headphone Source
Operating Frequencies72.1 to 75.9 MHz, 17 wideband channels (selectable)
Frequency Accuracy±2 ppm stability, 32 to 122°F (0 to 50˚C)
Deviation±75 kHz maximum
Pre-Emphasis75 µsec
RF
  • RF Field Strength: Does not exceed 80 mV/m at 9.8' (3.0 m)
  • RF Timer: Menu selectable - 30 Min, 4 Hours, or Always On
    Time starts when no audio is present
  • RF Power: Menu selectable - High, Medium, Low, OFF
  • RF Outputs: (1x) #10-32 stud connector in center of unit (PCB mounted), (1x) F-connector on rear chassis
  • RF Transmit Indicator: 1 Green LED, indicates RF “ON”

 

Antenna TypeCompatible Antennas: ANT 005, ANT 021, ANT 024, or ANT 025
Transmission RangeUp to 1000' (304 m) with ANT 005 coaxial antenna mounted on rear chassis connector
Audio Processing FunctionsDSP, Compression: 1:1, 1.5:1 or 2:1, High Pass and Low Pass Filter Frequency control
Frequency Response31 Hz to 16 kHz, ±3 dB ("Music" audio preset)
Signal-to-Noise Ratio≥74 dB Transmitted RF
Total Harmonic DistortionLess than 0.25% @ 1 kHz (RF output)
Common Mode Rejection>57 dB @ 1 kHz, Mic or Line
Audio Inputs1x combination 3-pin XLR, 1/4" TRS jack for mic or line level analog audio, balanced or unbalanced line level, or microphone with selectable phantom power
1x XLR for digital audio, AES3/EBU, supported sample rates 44.1 and 48 kHz
1x RCA for digital audio, S/PDIF, supported sample rates 44.1 and 48 kHz
Gain AdjustmentIn menu, adjustable to 0 to -50 dB, in 1 dB steps
Phantom Power14.4 VDC applied 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
Input LevelMicrophone:
-55 dBV (1.7 mV RMS), nominal (1st amber LED)
-15 dBV (180 mV RMS), overload warning (displayed on screen)
+20 dBV (10.0 V RMS), absolute maximum ratings

Line:
-25 dBV (55 mV RMS), nominal (1st amber LED)
+16 dBV (6.3 V RMS), overload warning (displayed on screen)
+20 dBV (10.0 V RMS), absolute maximum ratings
Headphone Output1/4" TRS stereo jack, mono signal, 15.7 mW, maximum in 33 Ohms (level adjustable in menu 0 to -40 dB in 2 dB steps)
Line OutputRCA jack (black), -10 dBV (.32 V RMS), output impedance 100 Ohms
EthernetRJ-45 on back of unit (PPA T45NET only)
ApprovalsFCC, RoHS2, WEEE, Industry Canada
Dimensions8.45 x 8.25 x 1.72" (21.5 x 21 x 4.4 cm)
WeightTransmitter: 3.0 lb (1.36 kg)
Packaging Info
Package Weight5.55 lb
Box Dimensions (LxWxH)12.756 x 10.551 x 3.543"

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

Channels17, Accessed via Seek Button in Battery Compartment
Operating Frequency72.1, 72.2, 72.3, 72.4, 72.5, 72.6, 72.7, 72.8, 72.9, 74.7, 75.3, 75.4, 75.5, 75.6, 75.7, 75.8, 75.9MHz
75kHz Intermediate Frequency
Deviation75kHz
De-Emphasis75µS
RangeAFC Range: ±120kHz
Sensitivity2µV @ 12dB Sinad with Quelch Defeated
Max Input Signal100mV
Frequency Response200Hz - 15kHz
ModulationFM, ±75kHz Peak Deviation
Signal to Noise Ratio65dB Min @ 100µV
Output Level35mW Max, Peak into 16 Ohms
Connectors3.5mm Stereo/Mono Headphone Jack
AntennaUses Earphone/Headphone Cord as Antenna
Battery2 x AA Alkaline or NiMH
Up to 50 Hours Life with Alkaline, Up to 32 Hours with Rechargeable NiMH
Enters Sleep Mode After 6 mins with no RF Signal
Current Consumption52mA, Nominal
IndicatorsGreen Power LED (Flashes for Low Battery)
Temperature Range32 to 122°F (0 to 50°C)
ApprovalsFCC, Industry Canada, RoHS, WEEE
FinishBlack
Dimensions (HxWxD)4.1 x 2.85 x 1.38" (104 x 72 x 35mm)
Weight4.6 oz (130g) (With Batteries)
2.6 oz (73g) (Without Batteries)
Packaging Info
Package Weight0.2 lb
Box Dimensions (LxWxH)4 x 3 x 1"

Williams Sound EAR 022 Surround Earphone Specs

StyleAround-ear speaker
Plug1/8" / 3.5 mm mono
Driver Size0.9" / 23.0 mm
Nominal Impedance32 Ohms
Frequency Response20 Hz to 20 kHz
Power Input30 mW
Sensitivity118 dB @ 1 kHz
Cord Length39.0" / 99.1 cm
Weight0.5 oz / 15.0 g
Packaging Info
Package Weight0.055 lb
Box Dimensions (LxWxH)3.6 x 3.1 x 0.85"

Williams Sound NKL 001 Induction Neckloop for T-Switch Hearing Aids Specs

Magnetic Field Strength25 mW input at 1000 Hz produces 1.7 A/m 6" above the center of loop
85μW input produces 0.1 A/m (IEC Standard)
Input Power500 mW max
Impedance8 to 16 Ohms
Connector1/8" / 3.5 mm mono mini-plug
Cable Length18 / 457 mm
ColorBlack
ApprovalsRoHS, WEEE
Weight1.5 oz / 43 g
Packaging Info
Package Weight0.15 lb
Box Dimensions (LxWxH)5.65 x 4.4 x 1"

Williams Sound CHG3512 - 12-Bay Body-Pack Charger Specs

For Use withReceivers:
PPA R37
PPA R35-8
R36
R863
RX22-4 style 3V  

Transmitters:
PPA T36
PPA T46
PFM T36
T863 style 3V transmitters
Charging TimeApprox. 16 Hours
Charging Rate16 Hour Charge: 140 mA Pulse/Maintain: 140 mA
Capacity12 Units
IndicatorsIndividual Charging Indicators: 12 x red LEDs - (LEDs blink slowly when charging is complete)
PowerInput: 90-240 VAC
Supply: TFP 037 switching AC adapter, 5 VDC, 4 A output
ApprovalsCE, WEEE, RoHS
Dimensions (LxWxH)9.5 x 7.4 x 1.7" / 241 x 188 x 43 mm
Weight1.2 lbs / 0.54 kg
Packaging Info
Package Weight2.725 lb
Box Dimensions (LxWxH)12.7 x 11.25 x 2.5"

Williams Sound ANT005 - Remote Coaxial Antenna for 72-76 MHz PPA Transmitters Specs

For Use withTransmitters:
PPA T45
PPA T45NET
PPA T27
Connector TypeF-connector
Cable TypeRG 59 coax
Nominal Impedance75 Ohms
Total Cable Length22.0' / 6.7 m
Antenna LengthActive Antenna Length: 80.0" / 203.2 cm
Packaging Info
Package Weight0.83 lb
Box Dimensions (LxWxH)6.35 x 6.2 x 2.3"

Williams Sound RPK005 - Rack Mount Kit for Half Rack Products Specs

Packaging Info
Package Weight0.82 lb
Box Dimensions (LxWxH)11.55 x 5.05 x 2.6"

Williams Sound IDP008 - ADA Wall Plaque for Hearing Assistance Specs

Dimensions (WxH)6.5 x 10.5" (165 x 266 mm)
Packaging Info
Package Weight0.1 lb
Box Dimensions (LxWxH)7.3 x 4.3 x 0.1"
See any errors on this page? Let us know

YOUR RECENTLY VIEWED ITEMS

Browsing History

Close

Close

Close