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The coverage area may be affected by direct/indirect 

sunlight, reflections on walls and room construction. 

Reflections of the infrared light from walls, ceilings, and 

floors may change these patterns.

Important: Remember to point the IR E4 emitter towards 

the listening audience.

Remember: Most objects block infrared light. The 

transmitter cannot be concealed behind walls, glass, 

curtains, etc.

Do not paint the front face of the IR E4.

Network Cable Connection

The 

Ethernet 

port

 

can be used to connect the IR M1 to a 

local network. A network connection is required to access 

the IR M1 webpage. The webpage is needed to configure 

some device settings after the system is set up.

An Ethernet connection alone will not allow the Wi-Fi 

broadcast features to work; a Wi-Fi connection must be 

available on the network. A network connection is not 

required for broadcasting over infrared.

Once a connection has been established, an IP address 

will automatically be assigned to the IR M1. Device settings 

can then be set via the website, including changing any 

network settings.

NOTE: Most settings need to be set BEFORE connecting 

audio sources.

Connections to Emitters and Emitter arrays

The IR M1 can directly drive four IR E4 emitters without the 

use of an IR A4 emitter array. Up to 4 IR A4 emitter arrays 

can be directly connected to the IR M1. Up to 16 IR E4 

emitters can be connected with the use of IR A4 emitter 

arrays. 

The outputs MUST NOT be split with CAT5e splitters.

Determine the length of CAT5e cable needed to reach from 

the IR E4 Emitter or IR A4 Emitter array to the IR M1 Control 

Center unit. For more information on cabling, please read the 

full user manual.

Audio Source Connections

The IR+ transmitter will accept the following audio sources:

1.  Balanced Microphone with or without 12 volt phantom 

power (DIN 45596) on a 3-pin (XLR) connector.

2.  Balanced/Unbalanced microphone with selectable 

+12VDC phantom power on 1/4 inch (TRS) jack.

3.  Balanced/Unbalanced Line on a 3-pin (XLR) connector.

4.  Balanced/Unbalanced Line on 1/4 inch (TRS) jack.

5.  Dante on an RJ-45 jack (optional).

WARNING:  

The IR+ is not designed to accept 70 volt speaker 

signals! This may result in damage to your system. 

The sound source should come directly from the system mixer 

or digital source as a low-level or unprocessed signal. 

For specific audio wiring information, please read the full 

user manual.

Network Configuration

An IP address will be automatically assigned to the IR M1 

once an Ethernet cable has been connected to the device 

and network connection has been established. Additional 

configuration would need to be made through the website.

Website for Device Settings

The IR M1 provides a website to manage the device settings. 

This website can be accessed over either a hardwired or 

wireless network connection with the Chrome browser. 

Changes take effect when applied or saved. Any updates 

made through the front panel will show up on the website 

once the current page has been navigated away from, 

either by refreshing the page or going to a new page.

1.  Open Chrome.
2.  In the address bar of the browser, type in the IP 

address of the IR M1 and hit Enter.

3.  You should see the Login Page of the IR M1 and can 

adjust settings from here.

4.  For more information, 

please read the full user manual.

For Additional Information

This manual is a quick start guide for getting your IR+ 

system up-and-running. It covers basic cable connection 

and setup. Most features and customization options are not 

documented in this manual.

For additional information, feature instructions, warranty 

information, and more, please download the full user 

manual from the IR+ product pages on Williams AV’s 

website.

*Note: The IR A4 is 

not

 rated for use in plenum spaces and 

will need to be installed in a plenum box for use in 

such areas.

[email protected]  /  www.williamsav.com

800-843-3544  /  INTL: +1-952-943-2252

© 2020, Williams AV, LLC  MAN 274B

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