Williams Sound IR SY4 SoundPlus Medium-Area Wireless Infrared System with 5 Stethoset Receivers

BH #WIIRSY4 • MFR #IR SY4
Williams Sound IR SY4 SoundPlus Medium-Area Wireless Infrared System with 5 Stethoset Receivers
Key Features
  • 1 x IR T2 Medium-Area IR Transmitter
  • 5 x 2-Channel Stethoset IR Receivers
  • 1 x 5-Slot Charger
  • Includes Wall/Ceiling Mount & ADA Plaque
The Williams Sound IR SY4 is a SoundPlus medium-area wireless infrared system designed to deliver reliable audio monitoring for up to five people in conferences, classrooms, assisted living facilities, and more. It includes the IR T2 infrared transmitter and its power supply, five WIR RX18 two-channel stethoset IR receivers, one charger with five slots, a wall/ceiling mount, and an ADA wall plaque. With a coverage area of up to 18,000 square feet and selectable transmission frequencies, it provides a blend of easy setup and robust power.

Audio inputs to the transmitter include two Euroblock line inputs and a 3.5mm microphone input. An additional Euroblock is provided for control system integration. Back-panel green and yellow LEDs indicate power status and signal presence. A power-saving mode automatically shuts off the carrier after 12 minutes without audio.

The supplied IR receivers feature under-the-chin style, low mass, and an easy-to-clean design. They have on/off controls built into their arms and recharge in the five-slot charger, which utilizes red LEDs to indicate charging status. A full charge yields up to seven hours of operating time.

Special Order
Expected availability: 7-10 business days
On Display in Store
$1,647.00

Important Notice

  • This item is noncancelable and nonreturnable.

Williams Sound IR SY4 SoundPlus Medium-Area Wireless Infrared System with 5 Stethoset Receivers

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Williams Sound IR SY4 Overview

The Williams Sound IR SY4 is a SoundPlus medium-area wireless infrared system designed to deliver reliable audio monitoring for up to five people in conferences, classrooms, assisted living facilities, and more. It includes the IR T2 infrared transmitter and its power supply, five WIR RX18 two-channel stethoset IR receivers, one charger with five slots, a wall/ceiling mount, and an ADA wall plaque. With a coverage area of up to 18,000 square feet and selectable transmission frequencies, it provides a blend of easy setup and robust power.

Audio inputs to the transmitter include two Euroblock line inputs and a 3.5mm microphone input. An additional Euroblock is provided for control system integration. Back-panel green and yellow LEDs indicate power status and signal presence. A power-saving mode automatically shuts off the carrier after 12 minutes without audio.

The supplied IR receivers feature under-the-chin style, low mass, and an easy-to-clean design. They have on/off controls built into their arms and recharge in the five-slot charger, which utilizes red LEDs to indicate charging status. A full charge yields up to seven hours of operating time.

Ideal for assistive listening and language interpretation in commercial spaces such as conference rooms, assisted living facilities, small cinemas/theaters, classrooms, and courtrooms
Wall-/ceiling-mountable compact transmitter with a maximum coverage area of 18,000 ft²
Power-saving mode automatically shuts off the carrier after 12 minutes without audio
Power and audio indicators on transmitter, charging indicators on charger
3.5mm microphone input with channel selector and dedicated gain knob
Two Euroblock line inputs accept balanced or unbalanced signal
Receivers support 2.3/2.8 MHz or stereo operation and offer a closed-ear design with comfortable eartips

Williams Sound IR SY4 Specs

Transmitter
Coverage AreaUp to 18,000 ft² / 1673 m² in single-channel mode with the RX22-4 receiver
Transmission Frequencies2.3, 2.8, 3.3, and 3.8 MHz
ModulationFM wideband
Pre-Emphasis50 µS
Deviation±50 kHz
Inputs2 x Euroblock line inputs (balanced/unbalanced)
1 x 1/8" / 3.5 mm microphone input
Control1 x Euroblock (Ground, Tx, Rx)
Frequency ResponseLine Inputs: 95 Hz to 17.6 kHz, -3 dB re 1 kHz
Mic Input: 125 Hz to 17 kHz, -3 dB re 1 kHz
Signal-to-Noise Ratio (SNR)70 dB (line input)
Operating Temperature32 to 122°F / 0 to 50°C
IndicatorsAudio: Yellow LED per channel
Power: Green LED
Power RequirementDC Power Input: 2.1 mm ID barrel connector, 48 VDC, 0.2 A, center positive
Power Supply Input: 100 to 240 VAC, 50/60 Hz, 18 W
Power Save ModeCarrier shuts off after 12 minutes without audio
Dimensions (W x D x H)9.0 x 3.8 x 1.4" / 229 x 97 x 36 mm
Weight0.8 lb / 0.4 kg
Approvals and ComplianceCE, FCC, Industry Canada, WEEE, RoHS, CB Scheme, RCM, and PSE
Receiver
Operating RangeUp to 3063 ft² / 285 m² with the TX9 emitter or TX90 transmitter in single-channel mode
Up to 1000 ft² / 93 m² with the TX75 in single-channel mode
IR Carrier Modulation Frequency2.3/2.8 MHz or stereo
Frequency Response200 Hz to 8 kHz (±5 dB)
Signal-to-Noise Ratio (SNR)60 dB at 32.8' / 10 m
Max Acoustic Output120 dB SSPL90 with 2cc coupler
EarpadsEAR 240 silicone eartips
Battery TypeBAT AP11A NiMH battery pack
Battery Life (approx.)Up to 7 hours
Construction MaterialABS plastic
Weight2 oz / 56 g (including battery)
ApprovalsCE, RoHS
Charger
Slots5
IndicatorsRed LED charging indicators
Power RequirementPower Supply: 100 to 240 VAC, 12 VDC TFP 043
Power Supply Input: 120 VAC
Construction MaterialMetal and plastic
Dimensions (L x W x H)12.0 x 6.3 x 1.5" / 304.8 x 158.8 x 38.1 mm
Weight1 lb / 0.5 kg (excluding power supply)
ApprovalsWEEE, RoHS
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