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2
SoundPlus
®
Value Courtroom System •
Model WIR SYS 2
D
D
U
NOTE: SPECIFICATIONS SUBJECT TO CHANGE WITHOUT NOTICE!
Receiver Style:
Body-Pack, dual-lens detector, lanyard
Size:
4.5" L x 2.85" W x 1.2" H (114.3 mm x 72.4 mm x
30.4 mm)
Weight:
4.6 oz (130 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
Ω
Acoustic Output:
110 dB SSPL90 w/ EAR 013
Sensitivity:
Better than 1 nW/cm
2
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
RX22-4 Front
RX22-4 Top
On/Off
Volume Switch
Earphone
Jack
"On"
Indicator LED
Channel
Selector Knob
OFF
WIR RX22-4 Receiver:
©2010, Williams Sound Corp. MCAT 028E
7
Fig. 9: WIR RX22-4 Receiver
