Williams Sound Video Game Sound System WIR SYS 7522 User Manual

INFRARED SPECIFICATION DATA  
Courtrooms • Conferences • Houses of Worship • Universities • Cinema  
WIR SYS 7522  
Mid-Range Infrared System  
This system features the NEW 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.  
System Includes:  
(1) WIR TX75 infrared transmitter  
(3) WIR RX22-4 four-channel selectable,  
infrared receivers  
(3) HED 021 folding headphones  
(2) NKL 001 neckloops  
(6) BAT 001 AA alkaline batteries  
(1) IDP 008 ADA wall plaque  
(1) BKT 024 wall / ceiling mounting bracket  
(1) TFP 046 international power supply with WLC 004 U.S. mains  
AC plug  
© 2012, Williams Sound, LLC MCAT 155C  
 
Mid-range Infrared System  
WIR RX22-4 Receiver  
Receiver Style: Body-Pack, dual-lens detector, lanyard  
Size: 4.1” L x 2.85” W x 1.2” H (104.1 mm x 72.4 mm x 30.4 mm)  
Weight: 4.5 oz (127 g) with batteries  
RX22-4 TOP  
CHANNEL  
SELECTOR  
EARPHONE  
JACK  
Color and Material: Black  
Lanyard: 3 ft (.91 m), allows receiver to be worn around the neck  
Operating Temperature: -10° C to +50° C  
OFF  
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  
ON/OFF  
VOLUME SWITCH  
"ON"  
INDICATOR  
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  
RX22-4 FRONT  
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, ashes 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 Ω  
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  
Compatible Headphones/ Mono or stereo, 8-32 ohms, 3.5 mm mini phone plug, HED 021, HED 026,  
Earphones: EAR 013, EAR 014, EAR 022, NKL 001  
A137  
© 2012, Williams Sound, LLC MCAT 155C  
 
Mid-range Infrared System  
Bid Specs  
WIR TX75/b  
WIR RX22-4  
The Williams Sound WIR TX75 Infrared Transmitter shall consist  
of an all in one modulator and emitter operating on 2.3MHz and/  
or 2.8MHz. The WIR TX75b shall operate at 3.3 MHz and/or 3.8  
MHz. The carrier frequency shall use 50kHz deviation and 50 μS  
pre-emphasis.  
The receiver shall be a body-pack type with IR detector lens  
behind face of the unit. The unit shall have a lanyard for hands-free  
operation. The receiver shall have a rotary-type volume control. The  
receiver shall operate for 60 hours with two AA alkaline batteries  
and for 30 hours per charge with NiMH AA batteries. The receiver  
shall be charged without battery removal via charger contacts in  
the case. A drop-in charger accessory shall recharge the batteries  
in 16 hours when used with CHG 3512 charger. The receiver  
shall be housed in an impact resistant plastic case with a hinged  
battery door that does not separate from the receiver. The receiver  
shall receive 2.3 MHz, 2.8 MHz, 3.3 MHz or 3.8 MHz modulated  
IR signals with 50 μS de-emphasis. The receiver shall have a  
3.5 mm stereo phone jack and accommodate low-impedance  
mono or stereo earphones and headphones. The receiver shall  
accommodate neckloop telecoil couplers. The receivers shall  
provide 125 dB SSPL90 output with HED 021 headphone and 110  
dB SSPL90 with EAR 013 earbud-type earphone.  
The TX75 shall have a minimum coverage of 5,000 sq ft with the  
WIR RX22-4 receiver in single channel mode.  
The TX75 shall be housed in a heavy-duty black plastic enclosure  
with a durable infra-red transparent front lens. It shall be convection  
cooled without fans. The Transmitter includes an omni-directional  
mounting bracket for various permanent installations.  
The TX75 shall have a line level RCA input for each of the channels.  
Each channel shall have an audio input level LED. There shall be  
a single 3.5mm microphone input with gain control. The mic input  
shall have a channel selector switch.  
The Transmitter shall have a switch to turn off all indicator LEDs.  
There shall be a switch for selecting either balanced or unbalanced  
line level inputs.  
The system electrical frequency response shall be 25 Hz to 16 kHz,  
+1, -3 dB and the S/N ratio shall be 60 dB. The receiver shall have  
CE, FCC RoHS and WEEE approval. The receiver shall be covered  
by a five-year parts and labor warranty, excluding earphones,  
headphones, batteries and chargers.  
The TX75 shall have two RJ45 outputs to supply power and  
baseband signal to two WIR TX75-S slave emitters via CAT-5 cable.  
A single CAT-5 cable supplies power, signal and digital control to the  
slave unit up to 100 ft from the Transmitter.  
The receiver shall be the Williams Sound model WIR RX22-4.  
The Transmitter shall be powered by a 48VDC universal power  
supply, 50-60Hz, 100-240 VAC input, 24W.  
The TX75 shall be covered by a two-year parts and labor warranty,  
90 days on accessories.  
This Transmitter shall be the Williams Sound model WIR TX75.  
NOTE: SPECIFICATIONS SUBJECT TO CHANGE WITHOUT NOTICE!  
Domestic Sales  
International Sales  
Williams Sound  
International Sales Department  
Williams Sound  
10300 Valley View Rd.  
Eden Prairie, MN 55344  
Ph: 800-328-6190 / 952-943-2252  
FAX: 952-943-2174  
10300 Valley View Rd.  
Eden Prairie, MN 55344 USA  
Phone: +1 952 943 2252  
Fax: +1 952 943 2174  
© 2012, Williams Sound, LLC MCAT 155C  
 

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