Williams AV FM 457 PRO Personal PA FM Assistive Listening System with 4 Receivers

OUR PART #: FM-457-PRO MFR #: FM-457-PRO

Copied to clipboard

The FM 457 PRO from Willliams Sound is part of their Personal PA® Pro series, and features the PPA T45 transmitter. ...Read more

Williams AV FM 457 PRO Personal PA FM Assistive Listening System With 4 Receivers Image 1
Williams AV FM 457 PRO Personal PA FM Assistive Listening System With 4 Receivers Image 2
Williams AV FM 457 PRO Personal PA FM Assistive Listening System With 4 Receivers
No longer available at Full Compass
We've left this page up for reference only.

Questions? Contact our
Sales and Service Pros for expert
advice and package pricing.

800-356-5844

Email customer service

Product Overview

The FM 457 PRO from Willliams Sound is part of their Personal PA® Pro series, and features the PPA T45 transmitter. This unit comes equipped with multiple digital audio input options plus an OLED display with easy-to-manage menu navigation. It also has 3 powerful microprocessors and the same high-quality audio and RF performance you’d expect from Williams Sound. An operating range of up to 1000 feet, makes the PPA 457 PRO ideal for large venues where superior coverage is vital. It's a full turnkey solution that includes (4) PPA R37 receivers, each providing seek-button channel selection with access to 17 pre-set wideband frequencies between 72-76 MHz. It includes a coaxial cable and rack-panel kit enabling professional installation. And the system is expandable, able to accommodate any number of listeners. This system is compliant with 2010 ADA guidelines for hearing assistance and is covered by Lifetime PLUS Limited Warranty. System includes Optional 17-channel receiver (PPA R38) is available for multi-channel applications.

Includes

  • (1) PPA T45 Transmitter
  • (4) PPA R37 Receivers
  • (2) NKL 001 Neckloops
  • (4) EAR 013 Single Mini Earbud
  • (1) ANT 025 Whip Antenna
  • (1) TFP 048 Power Supply
  • (1) WLC 004 Main Power Cord (U.S.)
  • (1) WCA 013 RCA Audio Cable, 3ft
  • (4) BAT 001-2 AA Alkaline Batteries
  • (1) IDP 008 Wall Plaque
  • (1) ANT 005 Coaxial Antenna
  • (1) RPK 005 Rack Panel Kit

Features

  • PPA T45 Transmitter
  • Up to 1000’ operating range
  • Transmitter is FCC Part 15 compliant
  • OLED display, push-button menus
  • Microprocessor controlled

Specifications

  • ANT 005 Coaxial Antenna
    • Connector type: F-connector
    • Cable type: RG 59 coax
    • Nominal Impedance: 75 Ohms
    • Total Cable Length: 22ft
    • Active Antenna Length: 80"
  • ANT 025 RF Whip Antenna
    • Connector type: Screw to PCB
    • Cable type: N/A
    • Nominal Impedance: N/A
    • Length: 39"
  • EAR 022 Surround Earphones
    • Style: Around-ear speaker
    • Plug: 3.5mm mono
    • Cord: 39"
    • Driver Size: 23 mm
    • Nominal Impedance: 32 Ohms
    • Freq. Response: 20 Hz - 20 kHz
    • Weight: 15g
    • Max Power Input: 30 mW
    • Sensitivity: 118 dB @ 1 kHz
  • IDP 008 Wall Plaque
    • Dimensions (L x W x H): 10-3/8" x 6-¼" x 1/8"
  • TFP 048 Power Supply
    • Input: 100-240 VAC, 50/60 Hz, 0.5 A
    • Output: 24 VDC, 0.75 A
    • Weight: 0.3 lbs.
  • BAT 026-2
    • (2) AA NiMH Rechargeable Batteries. 1.2 Volt, 1500 mAh
  • WCA 013 RCA Audio Cable
    • Description: Single RCA - RCA audio cable
    • Connector type: RCA - RCA
    • Cable type: 2-conductor
    • Impedance: N/A
    • Length: 3ft
  • WLC 004 - AC main power cord (U.S.)
    • IEC/CN AC main power cord, 3-pin (grounded), US main power cord
    • Weight: 0.60 lbs.
    • Color: Black
    • Length: 7.5ft
  • PPA R37N Receiver
    • Dimensions: 4.1" x 2.85" x 1.38" (104 x 72 x 35mm)
    • Weight: 4.6 oz. (130g) with batteries. 2.6oz (73g) without batteries
    • Color: Black
    • Battery Type: (2) AA Alkaline or 2 x AA NiMH
    • Battery Life:
      • (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 50°C
    • 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 Ohms
    • Auto Shut-off: Enters sleep mode after approx 6 mins of no RF signal
    • Approvals: FCC, Industry Canada, RoHS, WEEE
    • Warranty: Lifetime PLUS Limited Warranty, 90 Days on most accessories.
  • PPA T45 Transmitter
    • General:
      • Dimensions (W x D x H): 8.45" x 8.25" x 1.72" (21.5 x 21 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
      • Transmission Range: Up to 1000ft (304m) 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 -21 dB 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
      • RF Transmit Indicator: 1 Green LED, indicates RF “On Air”
    • Audio: 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
    • Audio Inputs:
      • (1x) Combination 3-pin XLR, ¼" (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 kHz and 48 kHz
      • (1x) RCA for Digital Audio, S/PDIF, supported sample rates 44.1 kHz and 48 kHz
    • Audio Input Gain Adjust: In menu, adjustable to 0 to -50 dB, in 1dB steps
    • Phantom Power: 14.4 VDC applied through 2.2 kOhm resistors to analog combo jack: Pin 2 and Pin 3 on XLR jack, or tip and ring on ¼" TRS jack
    • 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
    • Input Levels (Bal or Unbal, at Audio Input Gain = 0dB):
      • Nominal (1st Amber LED)
      • Overload Warning (Displayed on Screen)
      • Absolute Maximum Ratings*
    • Microphone:
      • -55 dBV (1.7 mV RMS)
      • -15 dBV (180 mV RMS)
      • +20dBV (10.0 V RMS)
    • Line:
      • -25 dBV (55 mV RMS)
      • +16 dBV (6.3 V RMS)
      • +20 dBV (10.0 V RMS)
    • Headphone Output: ¼" TRS stereo jack, mono signal, 15.7 mW, maximum in 33 Ω (level adjustable in menu 0 to -40 dB in 2 dB steps)
    • Line Output: RCA jack (black), -10 dBV (0.32 VRMS); Output impedance 100 Ohms
  • Other:
    • Ethernet: RJ-45 on back of unit (PPA T45NET and PPA T45 NET D) supports CAT5e cable lengths up to 328 feet (100 meters); 10/100 Base-T IEEE 802.3 compliant, unique MAC address. Cat5e sheilded cable must be used to meet FCC requirements.**
    • Dante: RJ-45 on back of unit (PPA T45 NET D only) supports CAT5e cable lengths up to 328 feet (100 meters); 10/100 Base-T IEEE 802.3 compliant, unique MAC address. Cat5e sheilded cable must be used to meet FCC requirements.**
    • Approvals: FCC including Part 15**, RoHS2, WEEE, Industry Canada
    • Warranty: Lifetime PLUS Limited Warranty (90 Days on most accessories)

Notes:

  • Approved by the FCC for operation only in U.S. markets. The system cannot be used in all countries. Check with your local government radio regulations for 72-76 MHz operation
  • Specifications are subject to change without notice.
  • *Stresses above these ratings may cause permanent damage. Exposure for extended periods may degrade reliability.
  • **Effective July 11, 2016, the FCC has mandated tighter emissions limits on auditory assistance transmitters (72-76 MHz) manufactured or imported after this date to help avoid interference with and/or degradation of other airborne signals (All products manufactured prior to July 11, 2016, are compliant). Williams Sound FM transmitters – PPA T46, PPA T27 and PPA T45 (all models) – all have received a Grant of Certification from the FCC and are fully compliant/approved under this new mandate.

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

Product Documents

Click to download