Bid Specs, WIR TX90 Transmitter | Williams Sound WIR SYS 90V

SoundPlus® Infrared System • Model WIR SYS 90V

Bid Specs

WIR TX90 Transmitter

The Williams Sound Corp. WIR TX90 transmitter shall consist of an all-in-one modulator and emitter operating on switchable carrier frequencies of 2.3/2.8 MHz or 3.3/3.8 MHz. The carrier frequency shall use 50 kHz deviation and 50µs pre-emphasis.

The transmitter shall have a range of 28,000 ft2 (2,600 m2) in single channel mode when using the RX22-4 receiver. The trans- mitter shall be contained in a metal housing with a durable plastic lens. The transmitter shall be convection cooled without fans. The transmitter shall include an omni-directional mounting bracket for permanent installations. Additional brackets shall be available for different mounting options.

The transmitter shall provide two channels of selectable carrier frequencies: CH A 2.3/2.8 MHz or CH B 3.3/3.8 MHz. Two trans- mitters used in tandem shall provide up 4 simultaneous channels.

The transmitter shall have two Phoenix connectors on the back for balanced or unbalanced line input. All controls and indi- cators shall be accessible on the bottom of the panel of the transmitter.

The transmitter shall have three application presets: Music, Hearing Assistance and Voice accessible by thumbscrew adjuster.

There shall be a 3.5mm stereo headphone jack for monitoring the processed audio before being transmitted.

Two BNC (50Ω) baseband output jacks shall be provided on the back panel for more coverage needs. The TX9 emitter panels must be used with the TX90 transmitter via RG58 coax cable.

The transmitter shall be powered by an external 24VAC, 50-60 Hz, 35VA power supply. The power connector shall be a three pin Molex type. Additional emitters shall require individual external power supplies.

The transmitter shall be covered by a five-year warranty on parts and labor. The transmitter shall be the Williams Sound Corp. model WIR TX90

WIR RX22-4 Receiver

The receiver shall be a body-pack type with IR detector lens behind face of the unit. The unit shall have a lanyard for hands- free operation. The receiver shall have a rotary-type volume control. The receiver shall operate for 60 hours with two AA alkaline batteries and for 30 hours per charge with NiMH AA batteries. The receiver shall be charged without battery removal via charger contacts in the case. A drop-in charger accessory shall recharge the batteries in 8 hours when used with CHG 3512 charger. The receiver shall be housed in an impact resistant plastic case with a hinged battery door that does not separate from the receiver. The receiver shall receive 2.3 MHz, 2.8 MHz, 3.3 MHz or 3.8 MHz modulated IR signals with 50 µS de-emphasis. The receiver shall have a 3.5 mm stereo phone jack and accommodate low-impedance mono or stereo ear- phones and headphones. The receiver shall accommodate neckloop telecoil couplers. The receivers shall provide 110 dB SSPL90 output with EAR 013 earbud-type earphone.

The system electrical frequency response shall be 25 Hz to 16 kHz, +1, -3 dB and the signal-to-noise ratio shall be 60 dB. The receiver shall have CE, FCC, RoHS, and WEEE approval. The receiver shall be covered by a five-year parts and labor warranty, excluding earphones, headphones, batteries and chargers.

The receiver shall be the Williams Sound Corp. model WIR RX22-4.

WIR RX14-2 Receiver

The receiver shall be a headset style with IR detectors positioned on top of each individual earphone. The receiver shall operate on 2.3 MHz or 2.8 MHz frequency. The receiver shall have an individual rotary-type volume control on each individ- ual earphone and a on/off selection switch on the right earphone. The receiver shall have a push button frequency selector to choose between 2.3 MHz or 2.8 MHz operation. The receiver shall provide 118 dB SSPL90 output, +/- 1 dB, and a signal- to-noise ratio of 58 dB. The receiver shall operate up to 50 hours when using AAA alkaline non-rechargeable batteries. The receiver shall be encased in a black, plastic case. The receiver shall operate up to 3,500 ft2 (325 m2) when using a single WIR TX9 Emitter. The receiver shall have CE, RoHS, and WEEE approval and be covered by a one-year parts and labor warranty, not including batteries or accessories.

The receiver shall be the Williams Sound Corp. model WIR RX14-2.

NOTE: SPECIFICATIONS SUBJECT TO CHANGE WITHOUT NOTICE!

	©2008, Williams Sound Corp. MCAT 064A	9

WIR SYS 90V specifications

Williams Sound WIR SYS 90V is a versatile and advanced assistive listening system designed to enhance audio clarity and accessibility in various environments. This system is particularly beneficial for individuals who are hard of hearing, ensuring that they can fully engage in conversations, lectures, and performances.

One of the main features of the WIR SYS 90V is its FM technology, which operates in the 72-76 MHz frequency range. This frequency range ensures minimal interference from other electronic devices and is compliant with legal regulations in many areas. The system includes a transmitter and multiple receiver units, allowing for a robust setup that caters to different settings, whether it be in theaters, classrooms, or even places of worship.

The WIR SYS 90V transmitter is designed with user-friendly controls, making it easy to adjust settings for optimal audio quality. It can connect to virtually any sound system via various input options, including microphone inputs and line-level connections. This flexibility allows the system to integrate seamlessly with existing audio setups, enhancing the listening experience without the need for extensive modifications.

The receivers included in the WIR SYS 90V package are lightweight and comfortable to wear, providing clear sound directly to the user without being obtrusive. They feature volume controls, allowing users to adjust sound levels according to their personal preferences. The system can support multiple receivers simultaneously, accommodating diverse audiences in need of assistive listening.

Another notable characteristic of the WIR SYS 90V is its compatibility with induction loop systems and hearing aids equipped with telecoils. This ensures that users with hearing aids can utilize the system effectively, expanding its accessibility.

The WIR SYS 90V is also built for durability, ensuring long-lasting performance under regular use. The transmitters and receivers are designed to withstand the rigors of different environments, making them ideal for both permanent installations and portable applications.

In conclusion, the Williams Sound WIR SYS 90V assistive listening system stands out with its advanced FM technology, user-friendly design, compatibility with hearing aids, and reliable performance. Whether for casual gatherings or large events, this system significantly enhances audio accessibility, ensuring that no one misses out on important spoken content.