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Williams Sound PPA 457 FM Assistive Listening System

Model: PPA 457

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About: Williams Sound PPA 457 FM Assistive Listening System

The Personal PA® 457 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 PPA 457 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. 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.


  • T45 professional transmitter
  • Up to 1000’ operating range
  • OLED display, push-button menus
  • Microprocessor controlled
  • Accommodates any number of listeners
  • Adjustable power output
  • Combo XLR, ¼” TRS inputs
  • Meets ADAAG guidelines
  • Lifetime PLUS Limited Warranty. 90 days on accessories.
  • Made in the USA

System Includes

  • (1) PPA T45 Transmitter
  • (4) PPA R37 Receivers
  • (2) NKL 001 Neckloops
  • (4) EAR 013 Earphones
  • (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.
  • (1) IDP 008 ADA Wall Plaque
  • (4) BAT 001-2 AA Alkaline Batteries is a Canadian authorized Williams Sound retailer.

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