Renowned for delivering crystal-clear audio and exceptional speech intelligibility, the SoundPlus® T3 infrared transmitter is the latest innovation from Williams AV. Equipped with advanced LED technology, the two-channel T3 transmitter delivers stronger, more efficient audio signals, ensuring comprehensive coverage and minimizing dropouts. The enhanced LEDs provide greater power and efficiency, offering complete coverage of up to 32,000 sq ft (2,972 sq m), effectively overcoming background noise, reverberation, and distance from the sound source.

This system includes everything needed to create an ADA-compliant assistive listening environment. Handheld receivers pick up the infrared signal, transmitting audio through lightweight folding headphones or a mono neckloop, which connects directly to T-coil hearing aids or cochlear implants. The transmitter comes with an omnidirectional wall or ceiling mounting bracket for discreet installation.

A “Hearing Assistance Available” wall plaque is also included to signal ADA-compliant accessibility. Ideal for environments requiring privacy or confidentiality, such as corporate boardrooms or spaces where sensitive information is shared

Features

• (1) IR T2 Medium-area Infrared Transmitter
  
• (3) WIR RX22-4 Four-channel Infrared Receivers
  
• (3) HED 021 Mono Folding Headphones
  
• (2) NKL 001 18″ Mono Neckloops
  
• (3) BAT 001-2 AA Alkaline Batteries
  
• (1) BKT 024 Wall/Ceiling Mount
  
• (1) IDP 008 ADA wall plaque
  
• (1) TFP 057 Power Supply

Specifications

Dimensions:	9.0" W (229 mm) x 3.8" D (97 mm) x 1.4" H (36 mm)
Weight:	0.84 lb. (0.38 kg)
Color:	Black
Power Supply:	TFP 057 Desktop style international certified power supply with IEC line cord, 100-240 VAC input, 50-60 Hz, 18 W; 48 VDC output
DC Power Input:	2.1 mm ID barrel connector, 48 VDC, 0.2A, center positive
Power Indicator:	Green LED
Sleep/Power Save Mode:	Shuts off IR when no audio present for 12 minutes
Modulation:	FM Wideband, ±50 kHz deviation max, 50 μS pre-emphasis
Baseband Frequencies:	2.3, 2.8, 3.3, 3.8 MHz
Coverage Area:	Up to 32,000 sq. ft (2,972 sq. m) in single-channel mode with the RX22-4 receiver Up to 19,000 sq. ft (1,774 sq. m) with the RX20 stethoset receiver
Microphone gain adjust:	Rotary 10 dB range
Microphone channel switch:	Selects microphone input to Ch. A or Ch. B
Microphone input:	3.5 mm, stereo jack with signal and bias connected to tip, electret microphone compatible (6 VDC bias supply with 2.7 k ohm series resistor)
Audio Inputs:	Line inputs: Phoenix style connector jack for Ch A and Ch B accept line level, balanced or unbalanced audio
Audio Indicators:	One yellow LED per channel. Lights up and stay on steady with minimum audio level.
Signal-to-Noise Ratio:	70 dB (line input)
Frequency Response:	95 Hz to 17.6 kHz, -3 dB re 1 kHz (line inputs) 125 Hz to 17.0 KHz, -3 dB re 1 kHz (microphone input)
Operating Requirements:	32°-122°F (0-50°C)
Mounting Kit:	Wall or Ceiling mount: BKT 024 Omnidirectional mount
Compatible Receivers:	WIR RX22-4, IR RX20
Warranty:	2-year warranty against component failure and manufacturing defects. See Full Warranty statement on the website for details.
Approvals/Regulatory Compliance:	CE, FCC, Industry Canada, WEEE, RoHS, CB Scheme, RCM, PSE