IR PLus Complete with Dante

The Williams AV IR+ Complete with Dante is a professional infrared audio system built around a single-rack-unit modulator, CAT5e-connected infrared transmission, and body-pack receiver operation. It provides selectable carrier frequencies, DSP-based audio processing, remote configuration, and coverage of up to 18,000 square feet in single-channel mode. Two combination XLR/TRS inputs support microphone or line-level sources, while front-panel monitoring and built-in diagnostic tools simplify setup and operation.

Ideal Use Cases

This system is suited to professional spaces requiring controlled infrared audio distribution and personal receiver access. Its body-pack receiver design includes a dual-lens detector and a 3-foot lanyard for neck-worn operation. A four-position rotary channel selector, combined power and volume control, and support for mono or stereo headphones and earphones provide straightforward listener control. Single-channel coverage of up to 18,000 square feet supports installations where broad infrared coverage is required.

Why Choose This Model

The IR+ platform combines flexible input handling with practical audio control. Two combination 3-pin XLR and 1/4-inch TRS inputs accept balanced or unbalanced line-level audio as well as balanced or unbalanced microphone signals with selectable phantom power. DSP processing provides selectable compression ratios of 1:1, 1.5:1, or 2:1, along with adjustable high-pass and low-pass filter frequencies. Separate 1/4-inch headphone outputs allow direct monitoring of Channel A and Channel B.

An adjustable auto carrier shut-off timer turns off the carrier when audio is absent and can be configured through the embedded webpage. A selectable 400 Hz internal test tone and dual infrared test LEDs support setup, receiver testing, monitoring, and audio signal diagnostics.

Installation and Integration

The modulator occupies one rack unit and measures 19 inches wide by 1.75 inches high by 8.2 inches deep. Its listed weight is 5.2 pounds. Four RJ-45 emitter output ports support CAT5e cabling and carry +48 VDC power, RS-485 communication, and baseband signals for infrared transmission. The connected emitter receives 48 VDC from the IR M1 through the same CAT5e cable, reducing the number of separate connections required between system components.

Remote configuration is available through an embedded website. The international desktop power supply accepts 110-240 VAC at 50-60 Hz and provides +48 VDC at 0.75 A through a center-positive output. The listed operating environment is 0-50°C in a non-condensing, non-corrosive atmosphere.

Performance Highlights

• Selectable carrier frequencies of 2.3/2.8 MHz or 3.3/3.8 MHz
• FM wideband modulation with +50 kHz deviation and 50 µs pre-emphasis
• Electrical frequency response of 40 Hz to 16,000 Hz, +1 dB/-3 dB
• Typical modulator signal-to-noise ratio of 67 dB
• Electrical total harmonic distortion below 2%
• Coverage up to 18,000 square feet in single-channel mode

The receiver delivers a minimum 60 dB signal-to-noise ratio and mutes at a 28 dB signal-to-noise ratio. Sensitivity is better than 1 nW/cm² for a 40 dB signal-to-noise ratio. Its 3.5 mm output accepts mono or stereo plugs and provides up to 15 mW at 32 ohms. Battery options include two AA alkaline or NiMH cells, with listed operating times of 60 hours for alkaline batteries and 30 hours per NiMH charge.

What Makes It Different

The combination of web-based configuration, onboard diagnostics, DSP processing, and four CAT5e emitter outputs gives installers multiple tools for configuring and checking the signal path. Front-panel monitoring permits Channel A and Channel B input verification without relying on a remote receiver. The receiver adds charging contacts for use with the CHG 3512 and a low-battery warning through its red power LED. Compatible listening accessories include HED 021, HED 026, EAR 013, EAR 014, EAR 022, and NKL 001 models.

Final Assessment

The IR+ Complete with Dante offers a rack-mounted infrared audio platform with flexible microphone and line inputs, selectable carrier frequencies, remote adjustment, integrated testing, and substantial single-channel coverage. The modulator carries a two-year warranty, while accessories carry a 90-day warranty. Listed approvals include CE, FCC, RoHS, RCM, WEEE, CB Scheme, ISED, and VCCI. The product title specifies the Dante configuration, while the supplied technical table describes Dante as optional; the ordered configuration should therefore be confirmed for Dante requirements.