Williams AV IR T1 – SoundPlus Small-Area Infrared Transmitter

Product Overview

The Williams AV IR T1 is a two-channel, small-area infrared transmitter that combines the modulator and emitter in a single mountable enclosure, eliminating rack space requirements and simplifying setup for assistive listening and private TV audio. Covering up to 1,300 square feet with the WIR RX22-4 receiver, the IR T1 suits small conference rooms, hospital rooms, assisted living facilities, and jury deliberation rooms. Its 2.3/2.8 MHz operating frequencies minimize interference from high-efficiency lighting, and no FCC license or radio approval is required anywhere in the world.

Product Description

The IR T1 is built for plug-and-play deployment: any line-level stereo source connects to the 3.5mm input jack, with channel 1 on the tip and channel 2 on the ring for one- or two-channel operation. The transmitter ships with the TFP 055 universal power supply, a 6-foot USB-to-micro-USB power cable, a 3.5mm stereo audio cable, and an RCA adapter cable for televisions — and because the unit draws just 5 VDC at 0.2 A, it can be powered directly from a TV's USB port, keeping installations clean in patient rooms and residential units.

High-efficiency LEDs display power status and audio presence per channel. When no audio is detected on a channel for 12 minutes, the carrier shuts off automatically to save power, then re-enables the moment audio returns. The chassis includes a 1/4"-20 threaded mount compatible with any camera tripod, and optional accessories include the STD 008 TV-top shelf and the BKT 024 omnidirectional wall/ceiling mount, giving AV integrators several placement options for line-of-sight coverage.

Pair the IR T1 with the WIR RX22-4N bodypack receiver or the IR RX20 stethoset receiver, both compatible with its 2.3/2.8 MHz carriers. Complete pre-configured kits and accessories are available in the Williams AV collection.

Key Features

• Integrated Modulator and Emitter — A single compact enclosure replaces separate rack components, reducing cost and easing installation.
• Two-Channel Operation — Independent 2.3 MHz and 2.8 MHz carriers support stereo audio or two separate mono programs such as audio description.
• 1,300 ft² Coverage — Covers up to 1,300 square feet with the WIR RX22-4 receiver, or 1,000 square feet with the IR RX20.
• USB Power Option — Operates from the included AC supply or any 5 VDC, 0.2 A USB port, including the USB port on most TVs.
• Automatic Power Save — Carriers shut off after 12 minutes without audio and re-enable automatically when signal returns.
• Flexible Mounting — 1/4"-20 threaded mount fits any camera tripod; optional STD 008 TV shelf and BKT 024 wall/ceiling bracket available.
• Lighting-Interference Immunity — 2.3/2.8 MHz carriers avoid interference from high-efficiency fluorescent and LED lighting.
• License-Free Worldwide — No FCC license or radio approval is required, simplifying multi-site and international deployments.

Typical Applications

• Conference room
• Huddle room
• Training room
• Government space
• Multi-purpose room

Technical Specifications

Frequently Asked Questions

Which receivers work with the IR T1?

The IR T1 is compatible with the Williams AV WIR RX22-4 four-channel bodypack receiver and the IR RX20 stethoset receiver, both of which support its 2.3 and 2.8 MHz carriers.

What audio sources can I connect?

Any line-level stereo source connects via the 3.5mm input jack. The included WCA 124 adapter cable supports TVs and sources with RCA stereo outputs, and the unit also ships with a 6-foot 3.5mm male-to-male stereo cable.

Can the IR T1 be powered without a wall outlet?

Yes. The transmitter requires only 5 VDC at 0.2 A over micro-USB, so it can run from a TV's USB port or any standard USB power source in addition to the included TFP 055 supply.

How should the transmitter be mounted?

The chassis has a 1/4"-20 threaded mount for any camera tripod. For installed applications, the optional STD 008 TV-top shelf or BKT 024 omnidirectional wall/ceiling bracket positions the emitter for clear line of sight to listeners.

Is the IR T1 suitable for confidential spaces?

Yes. Infrared light does not penetrate walls, so audio stays contained within the room — a key reason IR systems are specified for jury deliberation rooms and government facilities.

What warranty applies?

The IR T1 carries a 2-year Williams AV manufacturer warranty.