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WIR RX22-4
SoundPlus™ Infrared Receiver
The RX22-4 is a four-channel infrared receiver, compatible with
transmitters operating on the 2.3-3.8 MHz frequency bandwidth.
The sleek, comfortable design features a convenient rotary
channel selector and an easy-to-use on/o/volume control.
The RX22-4 can be used with mono or stereo headphones
and earphones, or a neckloop. Dual infrared detectors provide
maximum sensitivity and operating range.
SPECIFICATION DATA
© 2018, Williams AV, LLC MCAT 048E

SoundPlus™ Infrared Receiver
WIR RX22-4 Receiver:
EARPHONE
JACK
"ON"
INDICATOR
RX22-4 TOP
CHANNEL
SELECTOR
OFF
ON/OFF
VOLUME SWITCH
RX22-4 FRONT
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
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 28 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 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/
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
A137
NOTE: SPECIFICATIONS SUBJECT TO CHANGE WITHOUT NOTICE!
© 2018, Williams AV, LLC MCAT 048E

SoundPlus™ Infrared Receiver
Bid Specs:
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 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 receiver shall be the Williams AV model WIR RX22-4.
Domestic Sales
Williams AV
10300 Valley View Rd
Eden Prairie, MN 55344
Ph: 800-328-6190 / 952-943-2252
FAX: 952-943-2174
Email: info@williamsav.com
Web: www.williamsav.com
International Sales
International Sales Department
Williams AV
10300 Valley View Rd
Eden Prairie, MN 55344 USA
Phone: +1 952 943 2252
Fax: +1 952 943 2174
Email: info@williamsav.com
Web: www.williamsav.com
info@williamsav.com / www.williamsav.com
800-843-3544 / INTL: +1-952-943-2252
© 2018, Williams AV, LLC MCAT 048E