Personal PA® FM Listening System, Model PPA 575

T35 Rear Panel

INPUT LEVELS (Bal or Unbal):

Nominal (1st Amber LED)

Maximum (Input Overload LED)

Absolute Maximum Ratings*

Microphone Simplex-Mic:

-60 dBV (1mVRMS)

-20 dBV (100 mVRMS)

+20 dBV (10.0VRMS)

Line:

-8 dBV (400mVRMS)

+16 dBV (6.3 VRMS)

+20 dBV (10.0VRMS)

Simplex Mode:

12 volts simplex power (DIN 45596) on the 3-pin XLR connector

 

RF “Off” Timer:

Turns off RF signal after 1 hour of no audio activity

 

Common Mode Rejection:

> 57 dB @ 1 kHz, Mic or Line

 

 

Total Harmonic Distortion:

< 0.25% @ -10 dBV audio line output, 1 kHz

 

Warranty:

5 years, parts and labor**

 

 

*Note: Stresses above these ratings may cause permanent damage. Exposure for extended periods may degrade reliability. **90 days on cords, antenna, power supply and accessories.

PPA R19 Receiver:

Model PPA R19:

2-Channel, pre-tuned, selectable CH 33 (72.9 MHz), CH 53

 

(75.7 MHz) standard 10 channels available (72.1-75.9 MHz)

Model PPA R19–6:

6-Channel, pre-tuned, selectable

 

CH 13 (72.1 MHz), CH 23 (72.5 MHz),

 

CH 33 (72.9 MHz), CH 53 (75.7 MHz)

 

CH 38 (74.7 MHz), CH 43 (75.3 MHz)

Dimensions:

3-5/8" L x 2-3/8" W x 7/8" H (92.1 mm x 60.3 mm x 22.2 mm)

Weight:

3.2 oz (90 g) with battery

Color:

Neptune Blue

Battery Type:

(2) BAT 001 AA Alkaline or (2) BAT 026 NiMH

Battery Drain:

20 mA, nominal

Battery Life:

90–100 hrs with 2 AA Alkaline,

 

45-50 hrs/charge with BAT 026

Operating Freq:

Crystal controlled. See factory for frequency

 

changing instructions.

Intermediate Freqs:

10.7 MHz, 455 kHz

FCC ID:

CNMR19

Earphone:

Earbud-type with foam cushion, 3.5 mm plug, 32 Ω

Output Connector:

3.5 mm mini phone jack

FM Deviation:

Narrow–band, 5 kHz

De-Emphasis:

300 µS

Sensitivity:

0.7 µV at 12 dB Sinad

Squelch Level:

4 µV for minimum 40 dB S/N ratio

Frequency Response:

100 – 5 kHz, ± 3 dB (Tone: Lo)

Receiver Antenna:

Integral with earphone cord

Signal-to-Noise Ratio:

50 dB

Audio Output:

35 mW, max. at 16 Ω (Tone: Lo; 3 VDC Bat.)

Acoustic Output:

125 dB Max SSPL90 with EAR 013

CONTROLS

 

Tone:

Switched Low-Cut. Lo: 20 Hz / Mid: 120 Hz / Hi: 700 Hz

Volume & On/Off:

Combination, integral

Channel Selector:

PPA R19: 2-position, slide switch

 

PPA R19-6: 6-position, rotary switch

Warranty:

5 years (90 days on accessories)

 

Tone Controls

 

 

 

 

 

 

Earphone/

 

 

 

 

 

 

 

 

 

 

Volume/

Charging

EAR

 

Volume

Channel

On-Off

Jack

 

Control

Lo

Mid

Hi

 

1

 

 

 

2

 

 

 

 

2

 

 

 

 

 

 

 

 

 

Tone

 

1

 

 

 

 

 

 

 

Power

 

 

 

Off

Max

 

 

 

 

 

Channel

 

 

 

 

 

 

 

 

 

 

On/Off Indicator

 

R19 Top

 

 

 

 

 

Switch

 

 

 

 

 

 

 

 

 

Tone Controls

 

 

 

 

 

 

Earphone/

 

 

 

 

 

 

 

 

 

 

Volume /

 

 

 

 

 

 

 

 

 

 

On-Off

Charging

Ear

 

Volume

2 3

4 5

 

Control

Jack

Lo Mid Hi

 

1

 

 

 

6

 

 

 

 

 

 

 

 

 

 

Tone

 

 

 

 

 

 

 

Power

 

 

 

Off

Max

Channel

Channel

 

 

 

 

 

 

 

 

 

 

On/Off Indicator

 

 

 

 

 

 

 

 

 

 

Switch

R19-6 Top

Williams Sound

R19 / R19-6

Front View

Williams Sound ®

©2005, Williams Sound Corp. CAT 102B

Helping People Hear

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Williams Sound PPA 575 specifications T35 Rear Panel, PPA R19 Receiver
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PPA 575 specifications

The Williams Sound PPA 575 is an advanced personal listening system designed to enhance audio experiences in various environments, from classrooms to theaters and outdoor events. This device stands out for its user-friendly features and robust technologies, offering impeccable sound quality and versatility for users needing assistance with hearing.

At the core of the PPA 575 is its reliable FM technology, which operates at a frequency range of 72-76 MHz. This ensures that users receive clear transmissions without interference from other electronic devices, making it particularly effective in crowded settings. The system is engineered to deliver a strong, distortion-free audio output, allowing users to engage fully with presentations, performances, or conversations.

One of the defining characteristics of the PPA 575 is its compact and portable design. Weighing just a few ounces, it can be easily carried or worn around the neck using the supplied lanyard. The unit features a simple interface with clearly marked buttons, enabling users to adjust volume levels effortlessly. Additionally, the PPA 575 is equipped with a built-in speaker and a headphone jack, providing flexibility in listening preferences.

Another key feature is its compatibility with various receivers, including the PPA R37 and PPA R38, allowing several users to connect simultaneously. This scalability makes it an ideal choice for group settings, ensuring everyone receives the same high-quality audio experience. Furthermore, the PPA 575 operates on standard AA batteries, which offer extended usage time, enhancing its practicality for long events.

The system also includes advanced technology, such as automatic gain control, which adjusts the audio output based on the input signal, ensuring consistent sound quality. With excellent range and battery life, the PPA 575 ensures that users experience minimal interruptions during critical moments.

In conclusion, the Williams Sound PPA 575 is a versatile and reliable personal listening system that provides essential auditory support in various settings. Its combination of user-friendly features, cutting-edge technology, and superior sound quality makes it an invaluable tool for individuals seeking to enhance their listening experience while ensuring accessibility to sound. This product represents a significant step forward in personal assistive listening devices, making communication clearer and more inclusive for all.
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