WILLIAMS AV 457-12 Large-Area FM Assistive Listening System -12-R37 Receivers/12-EAR 002 Earphones/12 Alkaline Batteries

ITEM #: WLS-FM-457-12 MFG #: FM 457-12

Primary Image
  • Product Image Thumbnail 1 of 4
  • Product Image Thumbnail 2 of 4
  • Product Image Thumbnail 3 of 4
  • Product Image Thumbnail 4 of 4

This item is no longer available.
Ask a Markertek Expert if you need assistance finding an appropriate substitute.

(800) 522-2025Email

Items similar to the WLS-FM-457-12

FM 457-12 - Overview

12-Receiver System / R37 Receivers
The WILLIAMSAV FM 457-12 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 457-12 is ideal for large venues where superior coverage is essential. This complete turnkey solution includes 12 R37 receivers, each featuring seek-button channel selection with access to 17 pre-set wideband frequencies between 72-76 MHz. 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:

    • ear 022
    • Style: Around-ear speaker
    • Plug: 3.5mm mono
    • Cord: 39"
    • Driver Size: 23
    • Nominal Impedance: 32Ω
    • Freq. Response: 20 - 20kHz
    • Weight: 15g
    • Max Power Input: 30 mW
    • Sensitivity: 118 dB @ 1kHz

      ppa r37
    • Dimensions: 4.1" x 2.85" x 1.38" (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
    • Approvals: FCC, Industry Canada, RoHS, WEEE

      ppa t45
    • Dimensions: 8.45" W x 8.25" D x 1.72"H (21.5 cm x 21 cm x 4.4 cm)
    • Weight: Transmitter: 3.0 lbs (1.36 kg)
    • Shipping Weight: 4.50 lbs (2.04 kg) (Transmitter, Power Supply, Antenna and packaging)
    • Color: Black/Silver with black legends on the front, white legends on the back
    • Rack Mount: Standard 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 Supply: Desktop Style Transformer (TFP 048); Input: 100-240 VAC, 50/60 Hz. IEC Line Cord; Output: 24 VDC, 750 mA, 18W. 2.5mm ID center positive barrel connector
    • Approvals: UL, CUL, Energy Star V, CSA listed
    • 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 +104° F (0° C to 40° C); Storage: -4° F to +158° F (-20° C to 70° C)
    • Menu Settings: Audio 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, Ethernet/Network Settings (PPA T45 NET and PPA T45 NET D).
    • RF 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 µsec
    • RF Field Strength: Does not exceed 80 mV/m at 3 m
    • Compatible Antennas: ANT 005, ANT 021, ANT 024, or ANT 025
    • Transmission Range: Up to 1000 ft (304 m) with ANT 005 coaxial antenna mounted on rear chassis connector *RF Time-out (Sleep Mode) Menu selectable - 30 Min, 4 Hours, or Always On; timer starts when audio is below the -21dB VU level and no buttons are pressed
    • RF Power: Menu selectable - Full, Medium, Low, Off
    • RF Outputs: (1x) #10-32 stud connector in center of unit (pcb mounted); (1x) F-connector on rear chassis
    • Audio Processor Functions: DSP based; Compression: 1:1, 1.5:1 or 2:1; High Pass and Low Pass Filter Frequency control
    • Frequency Response: 31 - 16000 Hz, ±3 dB ("Music" Audio Preset)
    • Signal-to-Noise Ratio: ≥74 dB Transmitted RF
    • Total Harmonic Distortion: Less than 0.25% @ 1 kHz (RF output)
    • Common Mode Rejection: >57 dB @ 1 kHz, Mic or Line
     

  • Item Includes:

    • (1) PPA T45 Transmitter
    • (12) PPA R37N Receivers
    • (12) EAR 022 Surround Earphones
    • (3) NKL 001 Neckloops
    • (12) BAT 001-2 AA Alkaline Batteries
    • (1) ANT 025 Whip Antenna
    • (1) IDP 008 ADA Wall Plaque
    • (1) TFP 048 Power Supply
    • (1) WCA 013 RCA Audio Cable, 3 feet
    • (1) WLC 004 Main Power Cord (U.S.)
     

Required Accessories

FM 457-12 - Required Accessories

    Recommended Accessories

    Similar Products

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