Questions? Call Us:

Williams Sound WIR-SYS-7522-PRO
Infrared Assisted Listening System with (3) IR Bodypack Receivers


The Williams Sound WIR SYS 7522 system features the WIR TX75 infrared transmitter, ensuring participants in a conference room, courtroom...
Learn More
Our Price: $1,159.00
List Price: $1,288.00
You save 10%!
Write the first review.

Full Compass offers free ground shipping on thousands of stock and non-stock (special order) items for orders placed on this web site and shipping in the continental US (48 states).

Learn More

Free Shipping


We guarantee to match pricing on the products we sell for new, identical and immediately available products if you see them offered at a lower price. Please contact us if you find a lower price before purchasing.

Learn More

Low Price


Williams Sound WIR-SYS-7522-PRO
Usually ships in 7-14 business days.
Need it sooner? Call us!

Similar Products

The Williams Sound WIR SYS 7522 system features the WIR TX75 infrared transmitter, ensuring participants in a conference room, courtroom, classroom or other mid-sized venue  receive direct, clear communication of your message without sacrificing security. Includes WIR RX22-4 receivers–ideal for single-or two-channel applications. The sleek and stylish TX75 is designed to maximize coverage area up to 5,000 square feet in single-channel mode. Two additional slaves (sold separately) can be added for additional coverage of up to 5,000 square feet each (for total coverage of up to 15,000 square feet). Placing additional slaves in the same room increases coverage and enhances freedom of movement. A single CAT-5 cable carries both power and signal to slaves–truly a one-cable connection. Mounting bracket and power supply are included.

Williams Sound WIR SYS 7522 Includes:

  • One (1) WIR TX75 infrared transmitter
  • Three (3) WIR RX22-4 four-channel selectable, infrared receivers
  • Three (3) HED 021 folding headphones
  • Two (2) NKL 001 neckloops
  • Three (3) BAT 001-2 AA alkaline batteries
  • One (1) IDP 008 ADA wall plaque
  • One (1) BKT 024 Wall / Ceiling mounting bracket
  • One (1) TFP 046 international power supply with WLC 004 U.S. mains AC plug

Williams Sound WIR SYS 7522 Features:

  • Green power–if no audio is present after a fewminutes, unit automatically disables power to IR diodes, reducing powerconsumption by 80 percent
  • Headset and stethoset receivers also available foruse with WIR SYS 7522 (sold separately)
  • Robust digital communication bus between master andslave unit reduces interference
  • Master unit has troubleshooting lights built in tosimplify installation
  • Separate RCA audio inputs for each channel (2.3/2.8MHz) accept balanced or unbalanced line level inputs; use together for stereooperation or separately for mono
  • Unit senses if only one channel is in use and doublesthe output power on that channel for twice the coverage
  • TX75-S slave emitter available for use with WIR SYS7522 (sold separately)
  • Front cover can be painted to match decor

Williams Sound WIR SYS 7522 Specifications:

  • WIR RX22-4N:
    • Receiver Style: Body-Pack, dual-lens detector, lanyard
    • Size (LxWxH): 4.1” x 2.85” x 1.2” (104.1 mm x 72.4 mm x 30.4 mm)
    • Weight: 4.5 oz (127 g) with batteries
    • Color and Material: Black
    • Lanyard: 3 ft (.91 m), allows receiver to be worn around the neck
    • Operating Temperature: -10° C to +50° C
    • Battery Type: 2 x AA, alkaline (BAT 001) or NiMH (BAT 026)
    • Battery Life: Alkaline: 60 hours, NiMH: 30 hours/charge
    • Battery Drain: 25 mA, nominal
    • Charging Contacts: For use only with CHG 3512
    • Carrier Frequency:
      • Channel 1: 2.3 MHz, Channel 2: 2.8 MHz
      • Channel 3: 3.3 MHz, Channel 4: 3.8 MHz
    • De-Emphasis: 50 uS
    • FM Deviation: +/- 50 kHz
    • Signal-to-Noise Ratio: 60dB min.
    • Squelch: Receiver squelches (mutes) at 40 dB S/N ratio
    • Frequency Response: 25 Hz to 16 KHz, +1 dB, -3 dB, electrical response
    • Total Harmonic Distortion: Less than 1%, electrical response
    • Controls: ON/OFF/VOLUME: combination thumbwheel knob
    • Channel Selector: Four-position rotary switch
    • Indicators: Red LED “ON” indicator, flashes to indicate Low battery
    • Audio Output Jacks: 3.5 mm stereo mini phone jack Accepts 3.5 mm mono or stereo phone plug
    • Audio Output Power: 15 mW max at 32 Ohms
    • Acoustic Output: 125 dB SSPL90 with HED 021; 110 dB SSPL90 w/ EAR 013
    • Sensitivity: Better than 1 nW/cm2 for 40 dB signal-to-noise ratio
    • Approvals: CE, FCC, RoHS, WEEE
    • Warranty: 5 years on receiver, 90 days on accessories from Williams Sound
    • Compatible Headphones/Earphones: Mono or stereo, 8-32 ohms, 3.5 mm mini phone plug, HED 021, HED 026, EAR 013, EAR 014, EAR 022, NKL 001
  • WIR TX75:
    • Dimensions, Weight: 10.0" W (25.4 cm) x 3.1" D (7.9 cm) x 1.5" H (3.8 cm) w/o faceplate or 2.5" H (6.4 cm) w/faceplate, 0.6 lbs (0.3kg)
    • Color: Black with silver colored silk screen and silver colored faceplate (Optional: white colored faceplate)
    • Power Supply: Desktop style international power supply with IEC line cord, 100-240 VAC input, 50-60Hz, 24W; 48VDC output
    • DC Power Input: 2.5mm ID barrel connector, 48 VDC, 0.4A center positive
    • Power Indicator: Green LED
    • Sleep/Power Save Mode: Shuts off carrier when no audio is present for 3 minutes
    • Modulation: FM Wideband, +/- 50kHz deviation max, 50 µS pre-emphasis
    • Carrier Frequencies: 2.3 MHz (Ch1) and 2.8 MHz (Ch2), Default at power on = carriers off. Carriers are automatically enabled upon presence of audio.
    • Emitter IR Power: 0.7 W
    • Master Only Coverage Area (minimum, 1-Ch mode):
      • 5,000 sq. ft in single-channel mode with the RX22-4 receiver (464 sq. m)
      • 3,000 sq. ft in single-channel mode with the RX15-2 receiver (279 sq. m)
      • 2,000 sq. ft in single-channel mode with the RX18 receiver (186 sq. m)
    • Audio Inputs / Controls:
      • Line Inputs: RCA jack for Ch1 and Ch2 accept line level, balanced or unbalanced audio
      • Line In Balanced/Unbalanced Switch: selects balanced or unbalanced line level audio for RCA jacks
      • Microphone Input: 3.5 mm, stereo jack with signal and bias connected to tip, electret microphone compatible (4 VDC bias supply with 2.7k ohm series resistor)
      • Microphone Gain Adjust: Rotary potentiometer
      • Microphone Channel Switch: Selects microphone input to Ch1 or Ch2
    • Audio Indicators: Yellow LED blinks at nominal audio level. One per channel
    • Indicators On/Off: 2-position switch turns on/off indicator lights
    • “To Slave” Output/Input: (2) 8p8c RJ45 connectors output 48VDC 0.4A power, baseband RF and a bi-directional RS-485 bus for control and status communications
      Slave Status Indicators (on “to slave” jacks):
      • Green: Power/Unit Status
      • Yellow: Transmit/Cable Status
    • Signal-to-Noise Ratio: 70 dB, (line input)
    • Frequency Response:
      • 95 Hz - 17.6 kHz, -3dB re 1kHz (line inputs)
      • 125 Hz - 17.0 kHz, -3dB re 1kHz (microphone input)
    • Total Harmonic Distortion:  < 1% (1 kHz, nominal deviation, line or microphone input)
    • Operating Requirements:  0-50° C (32°-122°F)
    • Mounting Kit:
      • Wall or Ceiling mount: BKT 024 Omnidirectional mount
      • Optional: slave linking bar (MLB 003)
    • Warranty: 2 Years from Williams Sound
    • Approvals: CE, C-tick, FCC, Industry Canada, WEEE, RoHS, CB Scheme
    • Compatible Receivers: WIR RX22-4, WIR RX18, WIR RX15-2
Single Ear Bud, Mini Isolation
Williams Sound EAR-041 Single Ear Bud, Mini Isolation
Mini isolation single earbud, fits in the outer part of the ear. 32 Ohms, mono.
12.00 20.00 40

In Stock
Headphone,Behind the Ear
Williams Sound HED-026 Headphone,Behind the Ear
The stylish HED 026 rear-wear headphone offers excellent sound quality; it rests comfortably over the ears and wraps around the back of the head for a less obtrusive, relaxed fit.

In Stock
Mini Earphone
Williams Sound Ear 013T Mini Earphone
Single Mini Earphone with Flexible Eartip
18.49 18.50

In Stock
Mini Earphone, Single
Williams Sound EAR-013 Mini Earphone, Single
Single Mini Earbud. Fits in the outer part of the ear. 1m Cord. Foam cushions are washable and replaceable. Recommended for FM Receivers, Select IR Recievers, and Pocketalker. For mild to moderate hearing loss.

In Stock
Single Over-Ear Headphone
Williams Sound EAR-008 Single Over-Ear Headphone
Wide-range earphone. Hangs on outside of ear. Excellent Sound quality. 1m cord. Recommended for FM Receivers, Select IR Receivers, and Pocketalker. For mild to moderate hearing loss.

In Stock
Wide Range Earphone
Williams Sound EAR 022 Wide Range Earphone
Surround Earphone. Hangs on outside of ear. Excellent sound quality. 32 O, mono. Hearing loss rating: mild and low gain. 0.04 lbs.

5.0 / 5

★★★★★ 16.00

In Stock
Deluxe Folding Headphone
Williams Sound HED-021 Deluxe Folding Headphone
Comfortable dual headphones have an adjustable headband. Foam cushions can be washed or replaced. 3.5mm plug, 1m cord. Recommended for FM Receivers, Select IR Receivers, and Pocketalker. For mild to moderate hearing loss.

In Stock
Dual Stereo Isolation Earphones
Williams Sound EAR-042 Dual Stereo Isolation Earphones
Dual mini isolation earphone. Fits in the outer part of the ear.  Specifications: Style: Dual, in-ear, isolation earphones Plug: 3.5mm stereo Cord: 39” Driver Size: 10 mm Nominal Impedance: 32O Freq. Response: 20 - 20kHz ...
13.69 23.00 40

Usually ships in 7-14 business days.
Headset, Heavy Duty Folding
Williams Sound HED-027 Headset, Heavy Duty Folding
Ultimate heavy duty folding headphones.

Usually ships in 7-14 business days.
Need it sooner? Call us!
Dual Mini Earphones (Ear Buds)
Williams Sound EAR-014 Dual Mini Earphones (Ear Buds)
Williams Sound's EAR-014 is a dual-ear mini earbud for use with personal assistive listening devices. It features an angled 1/8" mini plug and foam earpads. 

Usually ships in 7-14 business days.

To be the first to review this item, click here.

Add to Cart

We're sorry, only of this item available

Call a Sales Pro at 800-356-5844 for more information

© 2017 Full Compass Systems, LTD  9770 Silicon Prairie Parkway, Madison, WI 53593  All rights reserved.

We are not responsible for typographical errors in pricing or product specification
inaccuracies in our catalog or web site. Prices are subject to change without notice.