Personal PAWideband Receiver, Model PPA R7-4NA

Bid Specs:

The receiver shall be housed in an impact resistant poly-propylene case with a hinged battery door that does not separate from the receiver. The receiver shall be a body-pack style with a wrist lanyard.

The receiver shall have a 3.5 mm mono earphone jack and accommodate low impedance mono earphones, head- phones and neckloop telecoil couplers. The 3.5 mm jack shall also serve as a charging jack for rechargeable batter- ies.

The receiver shall operate on one 9 volt battery and shall have a power LED next to the earphone jack. The receiver shall have a combination on/off rotary volume control and a four position switch to select between frequencies 72.1, 72.5, 72.9, or 75.7 MHz. These frequencies shall be pre-tuned and are adjustable by means of internal tuning coils.

The receiver shall receive FM signals in the 72-76MHz audio assistance band with 75 µs de-emphasis. The receiver shall provide a maximum output of 250mW at 16 Ohms with an earbud-type earphone. The system electrical fre- quency response shall be 100Hz to 10kHz, ± 3dB and the signal-to-noise ratio shall be 50dB at 10µV. The receiver shall accept wideband deviation of 75 kHz p-p.

The receiver shall be covered by a five-year parts and labor warranty, excluding earphones, headphones, bat- teries and chargers.

The receiver shall be the Williams Sound Corp. model PPA R7-4NA.

NOTE: SPECIFICATIONS SUBJECT TO CHANGE WITHOUT NOTICE!

Williams Sound ®

©2005, Williams Sound Corp. MCAT 037A

Helping People Hear

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Williams Sound PPA R7-4NA specifications Bid Specs

PPA R7-4NA specifications

The Williams Sound PPA R7-4NA is a remarkable personal listening device that caters to the diverse needs of users in various settings, such as educational institutions, theaters, and places of worship. This portable assistive listening system is designed to enhance auditory experiences and ensure that everyone can engage fully with audio content, regardless of their hearing capabilities.

One of the hallmark features of the PPA R7-4NA is its advanced digital signal processing technology. This technology provides superior sound quality, enabling users to enjoy clear and crisp audio without distortion. The device operates within a robust frequency range, ensuring compatibility with various sound sources, whether they are microphones, televisions, or other audio outputs.

The PPA R7-4NA is equipped with a four-channel receiver, allowing it to support multiple users while maintaining exceptional audio fidelity. This feature is particularly beneficial in classroom settings or during group events, where a large number of participants may require assistive listening support. Users can easily switch between channels to find the best audio feed, providing them with flexibility and independence.

Another significant characteristic of the PPA R7-4NA is its lightweight, ergonomic design. The device is built for comfort, allowing users to wear it for extended periods without fatigue. Its intuitive controls and straightforward interface make it accessible for users of all ages, including those who may not be technologically savvy. This user-friendly design encourages greater adoption among individuals who may benefit from assistive listening technology.

Furthermore, the PPA R7-4NA features a robust transmission range, ensuring that users can access sound without interruptions or dropouts. This reliability is essential for applications in environments where background noise may be prevalent, such as auditoriums or crowded spaces.

The device is compatible with various accessories and components, allowing for customized setups tailored to specific needs. With options for headsets and neck loops, users can select the best configuration that suits their preferences. The flexibility of the PPA R7-4NA enhances its usability across different scenarios.

In summary, the Williams Sound PPA R7-4NA is a cutting-edge solution for assistive listening, combining advanced technology, user-centered design, and exceptional audio quality. It serves to empower users, ensuring that everyone can enjoy clear sound in various environments, ultimately enhancing communication and engagement in numerous settings.