Williams AV IR E4 – IR+ Infrared Emitter, 18,000 Sq Ft Coverage

Product Overview

The Williams AV IR E4 IR+ Emitter is the infrared radiating element of the Williams AV IR+ assistive listening system, covering up to 18,000 square feet (1,670 square meters) in single-channel mode. The compact emitter connects to the IR M1 modulator over a single CAT5e cable that supplies power, control, and audio signal, eliminating the need for an electrical outlet at the mounting location. AV integrators deploy IR E4 emitters individually or in distributed arrays to deliver ADA-compliant infrared assistive listening across auditoriums, sanctuaries, courtrooms, and large meeting rooms. A BKT 024 wall/ceiling mounting bracket is included.

Product Description

The IR+ platform is built on a distributed emitter array architecture: instead of a single high-power transmitter panel, coverage comes from compact IR E4 emitters placed for direct line of sight to listeners. Up to four emitters connect directly to the IR M1 modulator's RJ-45 ports, and systems can scale to 16 emitters with IR A4 emitter arrays. Emitters can be stacked together to form a high-output array for one large zone, or distributed throughout the venue to cover room wings, balconies, and other locations a single emitter cannot reach.

Installation is a single CAT5e home run per emitter. The cable delivers 48 VDC power from the modulator, RS-485 communication, and the baseband infrared signal, so the emitter mounts anywhere structured cabling can reach. The included BKT 024 bracket supports wall or ceiling mounting, and at 0.8 pounds the unit places minimal demand on mounting surfaces. Because infrared light does not pass through walls, IR E4-based systems keep audio confidential within the room and allow adjacent spaces to run independent channels without interference. Note that the IR E4 is not a standalone product and requires an IR M1 modulator to function. Pair it with the Williams AV IR M1 IR+ Control Center, and scale larger venues with the IR A4 IR+ Emitter Array.

Key Features

• 18,000 Square Foot Coverage — A single IR E4 covers up to 18,000 square feet (1,670 square meters) in single-channel mode, serving most large rooms with one device.
• Single CAT5e Connection — One cable from the IR M1 carries 48 VDC power, RS-485 communication, and baseband IR signal, so no outlet is needed at the emitter.
• Stackable or Distributed — Emitters combine into arrays for concentrated output or spread across the venue to cover balconies, wings, and obstructed seating.
• Scalable System Design — Up to four emitters connect directly to an IR M1, and up to 16 with IR A4 arrays, letting coverage grow with the venue.
• Secure In-Room Audio — Infrared cannot penetrate walls, keeping confidential audio contained and preventing interference between adjacent rooms.
• Mounting Bracket Included — The supplied BKT 024 bracket handles wall or ceiling installation without additional hardware purchases.
• Lightweight Low-Profile Housing — At 7.5 x 1.4 x 3.6 inches and 0.8 pounds, the emitter mounts discreetly in finished commercial spaces.

Typical Applications

• Auditorium
• House of worship
• Government space
• Conference room
• Multi-purpose room
• Training room
• Commercial meeting space

Technical Specifications

Frequently Asked Questions

Does the IR E4 work without other equipment?

No. The IR E4 is not a standalone system — it requires an IR M1 modulator as the audio source and power supply. Listeners also need compatible Williams AV infrared receivers.

How many IR E4 emitters can one system use?

Up to four emitters connect directly to the IR M1's RJ-45 ports. With IR A4 emitter arrays, the system expands to as many as 16 emitters from a single modulator.

What does installation involve?

Mount the emitter on a wall or ceiling using the included BKT 024 bracket with line of sight to the listening area, then run one CAT5e cable back to the modulator or IR A4 array. Power, control, and signal all travel on that single cable.

Where should the emitter be aimed?

Infrared requires line of sight to listeners' receivers. Position emitters to face the seating area without obstructions; rooms with balconies, wings, or columns typically use multiple distributed emitters.

Can adjacent rooms each run their own IR system?

Yes. Infrared light does not pass through walls, so neighboring rooms operate independent systems without cross-interference — useful for divisible meeting spaces and courtroom complexes.

What is the warranty?

The IR E4 carries a 2-year Williams AV warranty; the included bracket is covered for 90 days.