Williams Sound PPA-457-NET-PRO
PPA 457 NET PRO

OUR PART #  PPA-457-NET-PRO


The Williams Sound PPA 457 NET PRO is a personal PA pro FM assistive listening system that features the cutting-edge PPA T45NET transmitter, with control/monitoring capability from any remote location, multiple digital audio input options, and an OLED display with easy-to-manage menu navigation. It 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 PPA 457 NET PRO is ideal for large venues where superior coverage is essential. This complete turnkey solution includes four PPA 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.

Williams Sound PPA 457 NET PRO Includes:

  • (1) PPA T45NET Transmitter
  • (4) PPA R37 Receivers
  • (2) NKL 001 Neckloops
  • (4) EAR 013 Single Mini Earbuds
  • (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

Williams Sound PPA 457 NET PRO Features:

  • PPA T45NET professional transmitter
  • Up to 1000’ operating range
  • OLED display, push-button menus
  • Microprocessor controlled
  • Accommodates any number of listeners
  • Adjustable power output
  • Combo XLR, 1/4" TRS inputs
  • Meets ADAAG guidelines

Williams Sound PPA 457 NET PRO Specifications:

  • PPA T45NET Transmitter
    • 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)
    • 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
  • PPA R37 Receivers
    • 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:
      • (2) AA non-rechargeable alkaline batteries (BAT 001), approx. 50 hrs
      • (2) AA rechargeable NiMH batteries (BAT 026), 1500 mAh, approx. 32 hrs
    • Temperature Range: – 0 to 50C
    • Channels: 17, accessed via seek button in battery compartment
    • Earphone: Earbud-type with foam cushion, 3.5 mm plug, 32 Ohms
  • EAR 013 Single Mini Earbuds
    • Plug: 3.5 mm mono
    • Cord length: 39 inches
    • Impedance: 32 Ohms
    • Frequency Range: 20 - 20 kHz
    • Driver size: 13 mm
    • Weight: 9 g
  • ANT 025 Whip Antenna
    • Used with: PPA T45, PPA T45NET, PPA T27 Transmitters
    • Connector type: Screw to PCB
    • Length: 39"
  • TFP 048 Power Supply
    • Input: 100-240 VAC, 50/60 Hz, 0.5 A
    • Output: 24 VDC, 0.75 A
    • 0.3 lbs
  • WCA 013 RCA Audio Cable
    • Description: Single RCA - RCA audio cable
    • Cable type: Two-conductor
    • Length: 3 ft
  • IDP 008 Wall Plaque
    • 10-3/8" (L) x 6-1/4" (W) x 1/8" (H)
  • ANT 005 Coaxial Antenna
    • 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
Williams Sound CHG3512 3V 12 Unit Charger for R35

Williams Sound CHG3512 3V 12 Unit Charger for R35

The Williams Sound CHG3512 charges over the course of a four hour time span.  It helps keep your receivers organized and saves cost on having to replace alkaline batteries.  Features individual charging LED indicators.  LEDs ...
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Williams Sound RPK-005 Single Rack Mount Kit for 1/2 Space Units

Williams Sound RPK-005 Single Rack Mount Kit for 1/2 Space Units

Single Rack Mount Kit for 1/2 Space Williams Sound Units.
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Williams Sound NKL-001 Neckloop Coupler, 18.5" Cord, 3.5mm Plug

Williams Sound NKL-001 Neckloop Coupler, 18.5" Cord, 3.5mm Plug

The neckloop is designed to magnetically couple the audio output from a Williams Sound unit into a hearing aid equipped with a telephone coil.  It will also work with tape players, TVs, and any device which has an 8-16 Ohm audio ...
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Williams Sound HED-026 Headphone,Behind the Ear

Williams Sound HED-026 Headphone,Behind the Ear

The stylish HED 026 rear-wear headphone offers excellent sound quality; it rests comfortably over the ears and wraps around the back of the head for a less obtrusive, relaxed fit.
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Williams Sound EAR-014 Dual Mini Earphones (Ear Buds)

Williams Sound EAR-014 Dual Mini Earphones (Ear Buds)

Williams Sound's EAR-014 is a dual-ear mini earbud for use with personal assistive listening devices. It features an angled 1/8" mini plug and foam earpads. 
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Williams Sound EAR-013 Mini Earphone, Single

Williams Sound EAR-013 Mini Earphone, Single

Single Mini Earbud. Fits in the outer part of the ear. 1m Cord. Foam cushions are washable and replaceable. Recommended for FM Receivers, Select IR Recievers, and Pocketalker. For mild to moderate hearing loss.
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Williams Sound EAR-022 EAR 022

Williams Sound EAR-022 EAR 022

Surround Earphone. Hangs on outside of ear. Excellent sound quality. 32 O, mono. Hearing loss rating: mild and low gain. 0.04 lbs.
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Williams Sound EAR-008 Single Over-Ear Headphone

Williams Sound EAR-008 Single Over-Ear Headphone

Wide-range earphone. Hangs on outside of ear. Excellent Sound quality. 1m cord. Recommended for FM Receivers, Select IR Receivers, and Pocketalker. For mild to moderate hearing loss.
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Williams Sound HED-021 Deluxe Folding Headphone

Williams Sound HED-021 Deluxe Folding Headphone

Comfortable dual headphones have an adjustable headband. Foam cushions can be washed or replaced. 3.5mm plug, 1m cord. Recommended for FM Receivers, Select IR Receivers, and Pocketalker. For mild to moderate hearing loss.
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Williams Sound ANT-005 ANT 005

Williams Sound ANT-005 ANT 005

The ANT 005 from Williams Sound is a Remote Coaxial Antenna, that measures 22ft overall in length with the last 80" being active antenna. Made for operating frequency of 72-76 MHz FM; for use with large-area FM ...
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Williams Sound RPK-006 Rack Kit, Dual

Williams Sound RPK-006 Rack Kit, Dual

Dual rack mount kit for half-rack space products.
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Williams Sound HED-027 Headset, Heavy Duty Folding

Williams Sound HED-027 Headset, Heavy Duty Folding

Ultimate heavy duty folding headphones.
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Williams Sound EAR-013T Ear 013T Mini Earphone

Williams Sound EAR-013T Ear 013T Mini Earphone

Single Mini Earphone with Flexible Eartip
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Williams Sound ANT-025 Antenna,Telescoping Whip

Williams Sound ANT-025 Antenna,Telescoping Whip

Telescoping whip antenna for the PPA T35 transmitter.
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Williams Sound BAT-001 1.5v AA Battery Alkaline

Williams Sound BAT-001 1.5v AA Battery Alkaline

1.5 Volt AA disposable alkaline battery.
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