SoundPlus® Infrared System • Model WIR TX925

SoundPlus® Infrared System • Model WIR TX925

D

Bid Specs

Modulator, Model MOD 232

The infrared system shall consist of separate modulator and emitter units, with portable receivers. The modulator unit shall be a half-rack style, metal enclosure. A rack panel shall be available to mount one or two modulator units within a single EIA rack space. An adjustable floor stand and mounting bracket shall be available to mount the modulator and emitter together for portable operation.

The modulator shall provide two channels of selectable FM carrier signals; 2.3/2.8/3.3/3.8 MHz, so that a single modulator can be used to simultaneously transmit up to two channels, and two modulators can be ganged together to transmit up to four channels simultaneously. The carrier signals shall use 50 kHz deviation and 50 µS pre-emphasis. The carrier signals (baseband) shall be transmitted to one or more emitters by 50 ohm RG58 coaxial cable with BNC-type connectors. A BNC–type baseband input jack and baseband output jack shall be provided on the modulator. The modulator shall be powered by an external 24 VAC, 10 VA, 50-60 Hz power supply, connected via a three-pin Molex power connector.

It shall have a rocker-type power switch, power LED indicator, four carrier indicator LEDs and two bar graph-type LED audio indicators. The modulator shall have a modulated IR LED on the front panel for testing purposes, and a head- phone jack that accommodates mono and stereo 1/4" headphones, and channel monitoring switch. The modulator shall have two rotary audio input level controls, and a screwdriver adjustable control for varying the input compression from 1:1 to 4:1. The modulator shall have two timers that automatically shut off the carriers when there is no audio signal present for 15 minutes. The modulator shall have two combination input jacks that accept 3-pin XLR plugs for balanced microphone input or 1/4" TRS plugs for balanced or unbalanced line-level inputs. The XLR inputs shall be low impedance, accept signal levels from 100 µV to 90 mV and supply 15 V simplex power per DIN45596. The TRS jacks shall accept bal- anced or unbalanced audio signal levels from 21 mV to 10 V. The modulator shall have CE, FCC, RoHS, and WEEE approval and carry a five-year parts and labor warranty.

The modulator shall be the Williams Sound Corp. model MOD 232.

Emitter, Model TX9

The emitter shall be contained in a metal enclosure with a shatter-resistant lens. The emitter shall include an omni-direc- tional mounting bracket for permanent installation and a bracket shall be available for mounting on a floor stand for portable installations. Each emitter shall be powered by a 24 VAC, 50 VA, 50-60 Hz power supply. The power connector shall be a 3-pin Molex-type. The emitter shall have a BNC-type 50 ohm baseband input and a BNC-type baseband 50 ohm output jack. The emitter shall have a repeater circuit to allow multiple numbers of emitters to operate from the base- band signal. The emitter shall have a visible LED indicator for power and for baseband signal. Carrier frequency is 50KHz to 8 MHz. The emitter shall shut off when the baseband signal is not present. The emitter shall provide an effective cov- erage area of 28,000 sq ft (2,600 sq m) in single channel mode and 18,000 sq ft (1,700 sq m) in two channel mode when using the RX22-4 receiver. The emitter shall be convection-cooled, without fans. The emitter shall have CE, FCC, RoHS, and WEEE approval and carry a five-year warranty on parts and labor.

The emitter shall be Williams Sound Corp. model WIR TX9.

Four-Channel Receiver, Model RX22-4

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.

NOTE: SPECIFICATIONS SUBJECT TO CHANGE WITHOUT NOTICE!

 

©2006, Williams Sound Corp. CAT 097G

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Williams Sound WIR TX925 specifications Bid Specs, Modulator, Model MOD
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WIR TX925 specifications

The Williams Sound WIR TX925 is a robust and innovative assistive listening transmitter that has gained recognition for its exceptional audio quality and user-friendly design. This device is an essential tool in enhancing the listening experience for individuals with hearing impairments, making it a valuable asset for classrooms, theaters, and various public venues.

One of the standout features of the WIR TX925 is its versatile operating frequency. It operates within the 72-76 MHz frequency range, which is ideal for achieving clear and uninterrupted audio transmission. This frequency range is favored for its minimal interference with other electronic devices, ensuring that users enjoy a reliable listening experience without distortion or dropout.

The transmitter supports a wide range of audio sources, making it adaptable to various applications. Whether it is used with microphones, audio systems, or even laptops, the WIR TX925 easily integrates with existing equipment, making it a convenient choice for end-users. The device includes an input/output jack that can accommodate diverse audio connections, enhancing its versatility in different settings.

Additionally, the WIR TX925 features robust transmission capabilities. It has an impressive transmission range, allowing broadcasts to reach multiple users without losing audio quality. This is particularly beneficial in larger venues where distance can affect sound clarity. The transmitter also incorporates advanced technology that minimizes background noise, ensuring that the primary audio signal remains crisp and intelligible.

User-friendly functionality is another hallmark of the WIR TX925. Its intuitive controls make it easy for both operators and users to adjust settings and manage audio outputs. LED indicators provide visual feedback on the device's operational status, enabling users to monitor performance easily.

The device is also designed with portability in mind. Its compact and lightweight form factor makes it easy to transport and set up, making it an ideal solution for temporary installations or events. The durable construction ensures that the WIR TX925 can withstand the rigors of regular use while maintaining performance integrity.

Overall, the Williams Sound WIR TX925 is a high-quality assistive listening transmitter that combines advanced technology, ease of use, and flexibility. Its broad frequency range, excellent transmission capabilities, and user-friendly design make it an invaluable resource for enhancing auditory accessibility in various environments. Whether for educational purposes, live events, or public spaces, the WIR TX925 stands out as a reliable and efficient solution for those seeking to improve the listening experience for individuals with hearing challenges.
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