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WILLIAMS PPA457 PRO PERSONAL PA SYSTEM

Other products by	Williams Sound
	(Tech Support Website)

Item #:

PPA457PRO

MSRP:

$1,449.00

Description
Description

PPA 457 PRO Personal PA® Pro FM Assistive Listening System

Description

The Personal PA 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 PPA 457 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.

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.

System Includes

(1) PPA T45 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

Optional 17-channel receiver (PPA R38) is available for multi-channel applications.

Features

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

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

BAT 001-2

Alkaline, 1.2 Volt

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” 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
Warranty:	Lifetime PLUS Limited Warranty, 90 Days on most accessories.

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.
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
RF Section
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, ANT 025, ANT 028, ANT 029, ANT 034.
Transmission Range:	Up to 1000 ft (304 m) with ANT 005 coaxial antenna mounted on rear chassis connector.
RF Timer:	Menu selectable - 30 Min, 4 Hours, or Always On. Timer starts when no audio is present.
RF Power:	Menu selectable - High, 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”
Audio Section
Audio Processor Functions:	DSP. 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, 1/4” 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 kΩ resistors to analog combo jack: Pin 2 and Pin 3 on XLR jack, or tip and ring on 1/4” 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:	1/4” 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 (.32 VRMS). Output impedance 100 Ω.
Ethernet:	RJ-45 on back of unit (PPA T45NET only)
Approvals:	FCC, RoHS2, WEEE, Industry Canada
Warranty:	Lifetime PLUS Limited Warranty (90 Days on most accessories)

Prop 65 WARNING: This product contains chemicals including Styrene which is known to the state of California to cause cancer, and Bisphenol A (BPA), which is known to the state of California to cause birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

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