Quick Setup Instructions

Model TX90 SoundPlus® Infrared Listening System

Step 1: Determine Location/Coverage

Prior to connecting the power supply and audio source, consider where TX90 will be installed for best coverage of the listening area. Ideally, the TX90 should be pointed toward the listening audience where the receivers can pick-up the TX90’s transmission line-of-sight. See manual for coverage drawings.

Step 2: Connect Power

Connect the supplied power supply to the back of the TX90 (figure 1). The red LED “Power On” indicator will illuminate.

Step 3: Connect Audio Source

For single channel mode, plug the audio cable with the installed Phoenix connector in “Channel A” OR the “Channel B” connector. For two channel operation, plug the audio cables with Phoenix connectors in both “Channel A” AND “Channel B” connector. NOTE: By default, the WIR TX90 is set to operate in two channel mode. To turn Channel A or Channel B on/off, refer to the instructions in Step 5. For optimal performance, turn OFF channels not in use.

Step 4: Selecting a Frequency

The TX90 offers two sets of carrier frequencies for Channel A and Channel B: 2.3 and 2.8MHz or 3.3 and 3.8MHz. The TX90 is preset to 2.3 and 2.8MHz. Move the slide switch to select a pair of operating frequencies.

Step 5: Selecting a Channel

To activate a channel, press the “CHANNEL” button until the channel “ON” indicator lights. To operate both channel A and B, press the “CHANNEL” button until both “ON” indicators light.

Step 6: Select the Audio Processing Application Preset

The TX90 offers three presets for the most common audio applications: Music, Voice, and Hearing Assist. The TX90 is factory set “Music” mode for maximum audio quality. To change this preset, press “CHANNEL” button to active channel to set preset for, then press the “PRESETS” button until indicator light shows your selection. After 10 seconds, the setting will be stored.

Step 7: Adjust Audio Input Level

To adjust the audio input level, first activate the channel(s) you want to adjust by pressing the “CHANNEL” button, then press the “VOLUME” button. Turn the “ADJUST” knob clockwise to increase the input signal or counter-clockwise to decrease the input signal until the channel “Level” indicator is flashing. After 10 seconds, the setting will be stored.

Audio level NORMAL (optimal): the audio indicator level will flash at a 1 second rate.

Audio level too HIGH: the audio indicator level will stay on or flash erratically.

Audio level too LOW: the audio indicator level will be off.

Step 8: Adjust Tone

To adjust the tone, first activate the channel(s) you want to adjust by pressing the “CHANNEL” button, then press the “TONE” button. The tone indicator will light. Now turn the “ADJUST” knob clockwise to emphasize high frequencies (best for hearing assistance use) and counter-clockwise to decrease the high frequency emphasis. After 10 seconds, the setting will be stored.

Step 9: Listen with Receiver

Important: Make sure the infrared receiver being used is on the same frequency as the WIR TX90! Refer to the operating instructions that came with your receiver.

See manual for detailed descriptions and instructions. If you are still having difficulty with your system, please call customer service at 800-843-3544.

MAN 124G

WIR TX90 specifications

The Williams Sound WIR TX90 is a robust and versatile wireless transmitter designed primarily for assistive listening applications in various environments. This innovative device offers an exceptional balance of performance, user-friendliness, and advanced technology, making it ideal for venues such as theaters, places of worship, schools, and conference centers.

One of the standout features of the WIR TX90 is its ability to transmit audio signals over a wide frequency range, ensuring clear and intelligible sound for users. Operating on a 72 MHz frequency band, the transmitter effectively minimizes interference and allows multiple systems to be deployed in close proximity without compromising audio quality. This makes the WIR TX90 especially suited for settings that require multiple listening channels.

A significant technological aspect of the WIR TX90 is its compatibility with Williams Sound's extensive range of receivers, including the WIR RX15 and WIR RX20. This compatibility ensures that users can select the most suitable receiver for their specific needs, enhancing the overall listening experience. The transmitter also features a built-in microphone input, as well as aux inputs, allowing for direct connections to various audio sources such as sound systems and microphones. With a maximum output power of 100 mW, the WIR TX90 delivers exceptional range and coverage, making it effective even in larger spaces.

Built with user convenience in mind, the TX90 is designed for easy setup and operation. Its intuitive control panel provides straightforward access to essential functions, with LED indicators that visually display the unit's status, including power and audio input levels. Additionally, the transmitter boasts a durable construction, ensuring it stands up to the rigors of regular use in diverse environments.

The WIR TX90 also prioritizes power efficiency, equipped with options for both AC and battery operation, allowing for flexibility in deployment. Its extended battery life means users can rely on solid performance throughout events without frequent interruptions for recharging or replacement.

In summary, the Williams Sound WIR TX90 is a top-tier wireless transmitter that combines cutting-edge technology, user-friendly features, and robust performance. Its versatility, durability, and compatibility with a range of receivers make it an essential tool for enhancing the listening experience in various professional settings.