Williams AV IR T2 – SoundPlus Medium-Area Infrared Transmitter

Product Overview

The Williams AV IR T2 is a commercial-grade, medium-area infrared transmitter for assistive listening and language interpretation in conference rooms, assisted living facilities, small cinemas and theaters, classrooms, and courtrooms. Covering up to 18,000 square feet in single-channel mode — 50 percent more than the previous WIR TX75 — the IR T2 combines the modulator and emitter in one compact, wall- or ceiling-mountable enclosure with no rack space required. Selectable 2.3, 2.8, 3.3, and 3.8 MHz transmission frequencies and RS-232 control readiness make it a straightforward specification for installed commercial AV systems.

Product Description

With a significantly wider coverage pattern and more output power than its predecessor, a single IR T2 covers most medium-area venues without the added expense of secondary emitter units. Audio connects through two Euroblock line inputs that accept balanced or unbalanced signal from a DSP, mixer, or amplifier, while a 3.5mm microphone input with a dedicated gain knob and channel selection switch supports standalone operation. Back-panel LEDs indicate power status and audio presence per channel, and a power-saving mode shuts off the IR carrier after 12 minutes without audio.

For managed AV environments, the IR T2 can be controlled remotely via RS-232 commands: powering the unit on and off, remotely setting the IR frequency pair (2.3/2.8 or 3.3/3.8 MHz), muting outgoing audio without powering down, switching the back-panel LEDs, and querying the unit for troubleshooting. The full command set is published in the IR T2 Programmer's Guide, making integration with room control processors straightforward. The transmitter ships with the BKT 024 wall/ceiling mounting bracket and the TFP 057 international power supply with line cord, and it is compatible with WIR RX22-4, WIR RX18, and IR R1 receivers.

Pair the IR T2 with the WIR RX22-4N four-channel receiver for bodypack listening, or see complete pre-built systems and accessories in the Williams AV collection.

Key Features

• 18,000 ft² Coverage — Single-channel mode with the RX22-4 receiver covers up to 18,000 square feet, 50 percent more than the WIR TX75 it replaces.
• All-in-One Enclosure — Modulator and emitter combine in one compact unit, eliminating rack space and simplifying mounting.
• RS-232 Control Ready — Remote commands handle power, frequency selection, audio mute, LED control, and troubleshooting from a room control system.
• Four Selectable Frequencies — 2.3, 2.8, 3.3, and 3.8 MHz carriers support multi-channel operation for interpretation and avoid lighting interference.
• Professional Audio Inputs — Two Euroblock line inputs accept balanced or unbalanced signal; a 3.5mm mic input includes dedicated gain and channel selection.
• Automatic Power Save — The carrier shuts off after 12 minutes without audio to reduce energy consumption.
• Mounting Hardware Included — Ships with the BKT 024 wall/ceiling bracket and TFP 057 international power supply with line cord.
• Broad Receiver Compatibility — Works with WIR RX22-4, WIR RX18, and IR R1 infrared receivers.

Typical Applications

• Conference room
• Boardroom
• Training room
• Auditorium
• Government space
• Commercial meeting space
• Multi-purpose room

Technical Specifications

Frequently Asked Questions

What is included with the IR T2?

The transmitter ships with the BKT 024 wall/ceiling mounting bracket and the TFP 057 international power supply with IEC line cord. Receivers are sold separately or available in pre-configured IR SY system kits.

Which receivers are compatible?

The IR T2 works with the WIR RX22-4 four-channel bodypack, the WIR RX18 stethoset, and the IR R1 receiver. Any number of receivers can operate within the coverage area.

Can the IR T2 be controlled by a room control system?

Yes. RS-232 commands support power on/off, remote frequency selection (2.3/2.8 or 3.3/3.8 MHz), audio muting, LED control, and troubleshooting queries. The full command list is in the IR T2 Programmer's Guide.

How does the IR T2 connect to a house audio system?

Two Euroblock line inputs accept balanced or unbalanced line-level signal from a DSP, mixer, or amplifier. A 3.5mm microphone input with dedicated gain is also available for standalone setups.

Can multiple channels be transmitted for language interpretation?

Yes. With four selectable carrier frequencies, the IR T2 supports multi-channel operation, and four-channel receivers such as the WIR RX22-4 let listeners select their language feed.

Does the IR signal stay inside the room?

Yes. Infrared light does not penetrate walls, so transmissions remain contained — a requirement frequently specified for courtrooms and secure government facilities.