WILLIAMS AV 457 Pro Personal PA FM Assistive Listening System - 4-Receiver System / R37 Receivers

ITEM #: WLS-FM-457-PRO MFG #: FM 457 PRO

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FM 457 PRO - Overview

4-Receiver System / R37 Receivers
The FM 457 PRO features the cutting-edge PPA T45 transmitter, with multiple digital audio input options and an OLED display with easy-to-manage menu navigation. Features three powerful microprocessors and the same high-quality audio and RF performance you've come to expect from Williams Sound. With an operating range of up to 1000 feet, the FM 457 PRO is ideal for large venues where superior coverage is essential. This complete turnkey solution includes four R37 receivers, each featuring seek-button channel selection with access to 17 pre-set wideband frequencies between 72-76 MHz. Includes a coaxial cable and rack panel kit for professional installation. The system is expandable, accommodating any number of listeners. This system complies with 2010 ADA guidelines for hearing assistance and is covered by Lifetime PLUS Limited Warranty.

NOTE: Approved by the FCC for operation in U.S. markets. The system cannot be used in all countries. Check with your government radio regulations for 72-76 MHz operation.

  • Specifications:

    • ant 005
    • Use with: PPA T45,PPA T45NET, PPA T27 Transmitters
    • Connector type: F-connector
    • Cable type: RG 59 coax
    • Nominal Impedance: 75 Ohm
    • Total Cable Length: 22 ft
    • Active Antenna Length: 80 in

      ear 013
    • Plug: 3.5 mm mono
    • Cord length: 39 inches
    • Impedance: 32 Ohms
    • Frequency Range: 20 - 20kHz
    • Max input power: 5mV
    • Sensitivity: 128dB @ 1kHz
    • Driver size: 13 mm
    • Weight: 9g
    • Replacement earpad: EAR 015

      ppa r37
    • Dimensions: 4.1 inch x 2.85 inch x 1.38 inch (104 x 72 x 35mm)
    • Weight: 4.6oz (130g) with batteries. 2.6oz (73g) without batteries
    • Color: Black
    • Battery Type: (2) AA Alkaline or 2 x AA NiMH
    • Battery Life: Two (2) AA non-rechargeable alkaline batteries (BAT 001), approx. 50 hrs (2) AA rechargeable NiMH batteries (BAT 026), 1500 mAh, approx. 32 hrs
    • Current Consumption: 52mA nominal
    • Temperature Range: - 0 to 50C
    • Channels: 17, accessed via seek button in battery compartment
    • Operating Freq: 72.1, 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, 75.9 MHz
    • Intermediate Freq: 75 kHz
    • FM Deviation: 75 kHz
    • De-Emphasis: 75 μS
    • LED Indicator: Power: Green; Low Battery: Flashes Green
    • AFC Range: ± 120 kHz
    • Sensitivity: 2 μV at 12 dB Sinad with squelch defeated
    • Input Overload: 100 mV
    • Frequency Response: 200 - 15 kHz
    • Modulation: FM, +/- 75 kHz peak deviation
    • Signal-to-Noise Ratio: 65 dB min @ 100 uV
    • Receive Antenna: Integral with earphone/headphone cord
    • Audio Output: 35 mW max, peak into 16 ohms
    • Output Connector: 3.5 mm stereo/mono phone jack
    • Earphone: Earbud-type with foam cushion, 3.5 mm plug, 32 Ω
    • Auto Shut-off: Enters sleep mode after approx 6 mins of no RF signal

      ppa t45
    • Dimensions(W x D x H): 8.45 inch x 8.25 inch x 1.72 inch (21.5 cm x 21 cm x 4.4 cm)
    • Weight: Transmitter: 3.0 lbs (1.36 kg); Shipping Weight: 4.50 lbs (2.04 kg) (Transmitter, Power Supply, Antenna and packaging)

      tfp 048
    • Input: 100-240 VAC, 50/60 Hz, 0.5 A
    • Output: 24 VDC, 0.75 A
    • 0.3 lbs

      wca 013
    • Description: Single RCA - RCA audio cable
    • Used with: PPA T27, PPA T45, PPA T45NET audio input cable
    • Connector type: RCA - RCA
    • Cable type: Two-conductor
    • Length: 3 ft
     
  • Item Includes:

    • (1) PPA T45 Transmitter
    • (4) PPA R37N Receivers
    • (4) EAR 022 Surround Earphones
    • (2) NKL 001 Neckloops
    • (2) BAT KT6 Dual Drop-in Charger Kits, each including (2) BAT 026-2 AA Rechargeable Batteries
    • (1) ANT 005 Coaxial Antenna
    • (1) ANT 025 Whip Antenna
    • (1) IDP 008 Wall Plaque
    • (1) RPK 005 Rack Panel Kit
    • (1) TFP 048 Power Supply
    • (1) WCA 013 RCA Audio Cable, 3 feet
    • (1) WLC 004 Main Power Cord (U.S.)
     

FM 457 PRO - Required Accessories

    California Residents:
    WARNING:
    Cancer and Reproductive Harm - www.P65Warnings.ca.gov