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SoundPlus
®
Infrared Receiver, Model WIR RX12-4
©2005, Williams Sound Corp. MCAT 019A
Williams Sound
®
Helping People Hear
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Description:
The RX12-4 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/off/volume control. The RX12-4 can be used with mono or stereo headphones and earphones, or
a neckloop. Dual infrared detectors provide maximum sensitivity and operating range.
Applications:
• Simultaneous Interpretation • Audio Description • Conferences • Multi-Media Rooms
• Boardrooms • Courtrooms • Schools • Universities • Cinemas • Churches
Receiver Style: Body-Pack, dual-lens detector, lanyard
Size: 3-5/8" L x 2-3/8" W x 7/8" H (9.2 cm x 6 cm x 2.2 cm)
Weight: 4.5 oz (127 g) with batteries
Color and Material: Gray, shatter-proof polyallomer
Lanyard: 3 ft (.91 m), allows receiver to be warn 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 200 and CHG 1600 Chargers
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 Ω
Acoustic Output: 125 dB SSPL90 with HED 002; 110 dB SSPL90 w/ EAR 013
Sensitivity: Better than 1 nW/cm
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for 40 dB signal-to-noise ratio
Approvals: CE, FCC, Industry Canada, AS
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 002, HED 021, EAR 013, EAR 014, EAR 022
WIR RX12-4 Receiver:
NOTE: SPECIFICATIONS SUBJECT TO CHANGE WITHOUT NOTICE!
RX12-4 Front View
4channel
IR
Williams Sound
RX12-4 Top View
EAR
On
Volume
Channel
OFF
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