Bid Specs, Front Panel, Rear Panel | Williams Sound PPA 375 guide

Personal PA™ FM Listening System • Model PPA 375

Bid Specs:

The PPA T35 transmitter shall be microprocessor controlled with push button configuration. It shall have an operating range of up to 1000 feet. It shall have 10 wideband and 7 non-standard wideband channels operat- ing on 72.1–75.9 MHz. It shall have 77 narrowband channels operating on 72.025–75.975 MHz.

Front Panel:

The PPA T35 shall have a push button controlled LCD digital display. There shall be three pre-configured (selec- table) application presets: Hearing Assist, Music and Voice. Configurations for Bandwidth, Frequency, Audio Input Source (Microphone, Line, Simplex), High Pass Filter, Low Pass Filter, Compressor Slope, Compressor Gain and RF Output Power shall be push button controlled. The audio level shall be adjustable by push button con- trol. There shall be a 10 LED array showing +9 to -18 at 3dB intervals. The PPA T35 shall have a 1/4" phone jack with push button volume control. It shall have push button control for monitoring source audio or transmitted audio. It shall have an input overload indicator. It shall have an “on” indicator and power button.

Rear Panel:

The PPA T35 shall be powered by 24 VAC power supply via a 3-pin Molex® connector. It shall have a 75 ohm F-connector antenna. It shall have an ANT 025 whip antenna on the top panel directly connected to the circuit board. The transmitter shall have an RCA line output jack. It shall have a combination 1/4" phone/XLR audio input jack. It shall have an RF “Off” timer that turns off RF signal after 1 hour of no audio activity.

The PPA T35 shall have FCC, RoHS, and WEEE approval and be powered by UL and CSA power supply. It shall have a 5-year parts and labor warranty. It shall be compatible with Williams Sound FM equipment operating on 72-76 MHz. The transmitter shall be a Williams Sound Corp. model number PPA T35.

PPA R35 Receiver:

The R35 receiver shall be encased in a black, PC/ABS impact-resistant plastic with a hinged door for bat- tery installation. The receiver shall be a body-pack type and include a detachable belt-clip for hands-free operation. The receiver shall have a 3.5 mm mono phone jack and accommodate low-impedance mono earphones, headphones, neckloops, and telecoil couplers. The receiver shall have a combination volume control and power on/off rotator dial, and a green LED power “on” indicator. The LED power “on” indi- cator shall illuminate red to indicate low battery power. There shall be a screwdriver adjustable tuning pot accessible through the battery door. There shall be a slide selection switch located through the bat- tery door for choosing Alkaline or NiMH battery operation. There shall be drop-in charger contacts on the bottom of the receiver unit. The receiver shall be pre-tuned to one of 17 available channels from 72- 76 MHz and field adjustable by internal tuning coil. The receiver shall operate up to approx. 100 hours when using 1.5 V AA Alkaline batteries, and shall operate up to approx. 50 hours when using 1.5 V NiMH rechargeable AA batteries.

The receiver shall receive FM signals in the 72-76 MHz audio assistance band with 75 µS de-emphasis. The receiver shall provide a maximum output of 35 mW at 16 Ohms with an earbud-type earphone. The sys- tem’s electrical frequency response shall be 100 Hz to 15 kHz, ± 3 dB and the signal-to-noise ratio shall be 65 dB at 10 µV. The receiver shall have a sensitivity of 2µV at 12 dB Sinad.

The receiver shall have FCC, Industry Canada approvals, and be compliant with RoHS and WEEE regula- tions. The receiver shall be covered by a five years parts and labor warranty, excluding earphones, head- phones, batteries and chargers. The receiver model shall be the Williams Sound Corp. model PPA R35.

*90 days on accessories.

NOTE: SPECIFICATIONS SUBJECT TO CHANGE WITHOUT NOTICE!

	©2008, Williams Sound Corp. CAT 100H	4

PPA 375 specifications

The Williams Sound PPA 375 is a state-of-the-art personal portable amplifier designed to enhance listening in various environments, ensuring clarity and accessibility for individuals with hearing difficulties or those in need of amplified sound. This versatile device is particularly beneficial within settings such as classrooms, churches, theaters, and guided tours, making communication easier and more effective.

One of the standout features of the PPA 375 is its lightweight, compact design. Weighing in at just over a pound, it allows for easy portability without sacrificing durability. The unit comes equipped with an ergonomic handle and a belt clip, making it ideal for users who need mobility while enjoying amplified sound.

The PPA 375 incorporates advanced Frequency Modulation (FM) technology, which provides reliable transmission over distances of up to 1,000 feet. This ensures that users can maintain a clear audio signal even in larger venues. The system operates on a selection of channels, allowing multiple users to engage in conversations or presentations without interference. This is particularly useful in environments where several groups may be using similar devices.

Another important characteristic of the PPA 375 is its exceptional sound quality. With a built-in speaker and a headphone jack, the device delivers crisp and clear audio, enabling users to enjoy a better listening experience. The adjustable volume control allows users to set their preferred sound level, catering to individual needs.

The PPA 375 is designed for ease of use, featuring a straightforward control interface that allows for quick adjustments. Its long-lasting rechargeable battery supports extended use, making it suitable for long sessions without frequent interruptions. The unit also includes a versatile input option, supporting various media devices such as MP3 players or smartphones, broadening its functionality.

In summary, the Williams Sound PPA 375 is a reliable and efficient audio solution, combining advanced technology, portability, and user-friendly features. With its robust performance and adaptability, it stands out as a valuable tool for enhancing communication and accessibility across various settings, empowering individuals to connect and engage without barriers.