Williams Sound Stereo Receiver WIR RX12 4 User Manual

So u n d P lu s ® Infrared Receiver, Model WIR RX12-4  
Description:  
The RX12-4 is a four-channel infrared receiver, com patible with transm itters operating on the 2.3-3.8 MHz  
frequency bandwidth. The sleek, com fortable design features a convenient rotary channel selector and an  
easy-to-use on/off/volum e control. The RX12-4 can be used with m ono or stereo headphones and earphones, or  
a neckloop. Dual infrared detectors provide m axim um sensitivity and operating range.  
Applications:  
Sim ultaneous Interpretation • Audio Description • Conferences • Multi-Media Room s  
• Boardroom s Courtroom s • Schools • Universities • Cinem as • Churches  
WIR RX12-4 Receiver:  
Receiver Style:  
Size:  
Body-Pack, dual-lens detector, lanyard  
3-5/8" L x 2-3/8" W x 7/8" H (9.2 cm x 6 cm x 2.2 cm)  
4.5 oz (127 g) with batteries  
2
3
Volum e  
On  
1
EAR  
4
Weight:  
Color and Material:  
Lanyard:  
Gray, shatter-proof polyallomer  
O FF  
Cha nne l  
3 ft (.91 m), allows receiver to be warn around the neck  
-10° C to +50° C  
Operating Tem perature:  
Battery Type:  
Battery Life:  
2 x AA, alkaline (BAT 001) or NiMH (BAT 026)  
Alkaline: 60 hours, NiMH: 30 hours/charge  
25 mA, nominal  
RX12-4 Top View  
Battery Drain:  
Charging Contacts:  
Carrier Frequency:  
For use only with CHG 200 and CHG 1600 Chargers  
Channel 1: 2.3 MHz, Channel 2: 2.8 MHz  
Channel 3: 3.3 MHz, Channel 4: 3.8 MHz  
50 uS  
De-Em phasis:  
FM Deviation:  
±50 kHz  
Signal-to-Noise Ratio:  
Squelch:  
60dB min.  
Receiver squelches (mutes) at 40 dB S/N ratio  
25 Hz to 16 KHz, +1 dB, -3 dB, electrical response  
Less than 1%, electrical response  
Frequency Response:  
Total Harm onic Distortion:  
Controls:  
Willia m s Sound  
ON/OFF/VOLUME: combination thumbwheel knob  
Channel Selector: four-position rotary switch  
Red LED ON” indicator, flashes to indicate Low battery  
3.5 mm stereo mini phone jack  
IR  
4 cha nne l  
Indicators:  
Audio Output Jacks:  
Accepts 3.5 mm mono or stereo phone plug  
Audio Output Power:  
Acoustic Output:  
Sensitivity:  
15 mW max at 32  
125 dB SSPL90 with HED 002; 110 dB SSPL90 w/ EAR 013  
Better than 1 nW/cm2 for 40 dB signal-to-noise ratio  
CE, FCC, Industry Canada, AS  
Approvals:  
Warranty:  
5 years on receiver, 90 days on accessories  
Mono or stereo, 8-32 ohms, 3.5 mm mini phone plug,  
HED 002, HED 021, EAR 013, EAR 014, EAR 022  
Com patible Headphones/ Earphones:  
RX12-4 Front View  
NOTE: SPECIFICATIONS SUBJ ECTTO CHANGE WITHOUT NOTICE!  
©2005, William s Sound Corp. MCAT 019A  
Williams Sound ®  
Helping People Hear  
1
 

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