Williams Sound 125 User Manual
SoundPlus
Williams Sound
®
Helping People Hear
TX295 Front
R
+
-
DC12V
L
MIC
ST L R
TX295 Rear
RX3 Top
On/Off
Indicator
Light
Vol ume/
On-Off
Control
Earphone/
Charging
Jack
EAR/CHG
Vol ume
1
Williams
Sound
Vol ume
Control
& Switch
Earphone
Jack
Infrared
“Eye”
Description:
The WIR 125 System reduces background noise by delivering audio directly from the sound source to the
listeners ears. The stereo TX295 transmitter conveniently plugs directly into the TV, VCR or sound system.
The RX3 receiver features an earphone jack which allows the user to plug in a variety of earphones, headphones
or other listening accessories of their choice.
Applications:
• Television Listening • Stereo Listening • Small Group Listening • Language Interpretation • Offices
WIR TX295 Transmitter:
Infrared Listening System, Model 125
®
Size, W
eight, Color:
6.25" L x 3.25" W x 1.25" H (15.9 cm x 8.3 cm x 3.2 cm), 5.1 oz (140 g), Gray
Power Input: 12 VDC (center is positive) on DC connector, 200 mA Class II wall transformer
TFP 024 Power Supply: North America: 120 VAC, 60 Hz, UL/CSA
TFP 032 Power Supply, 2 pin Euro mains plug, 230 VAC, 50-60 Hz, CE
TFP 033 Power Supply, 3 pin UK mains plug, 230 VAC, 50-60 Hz, CE
Subcarrier Frequency: 95 kHz or stereo or 250 kHz
Auto Power On/Off: Transmitter shuts off infrared after 1.5 minutes when audio signal is removed. Battery charging functions remain on full time.
Microphone Input: 3.5 mm jack for MIC 084 Electret TV Microphone, 1.5 kΩ
Line Inputs: 2 RCA jacks for mono or stereo line-level sources, 200 mV min. to 10 V rms max. input level, 5.1 kΩ
Automatic Level Control: 35 dB compression range
Infrared LEDs, Pattern: 8 IR LEDs, 45 degree cone-shaped coverage pattern to 6 dB intensity, 30 ft (9 m) line of sight
Charging Ports: Charges one WIR RX295 Receiver plus two additional BAT AP97A NiMH battery packs
Warranty: 5 years*
(TX295 Front and Back Panels)
WIR RX3 Receiver:
ype:
eight:
3.62" L x 2.36" W x 0.86" H (9.2 cm x 6 cm x 2.2 cm),
3.2 oz (90 g) with battery
olt, Eveready 216, Eveready 522,
9 V
or BAT 003 NiMH 7-cell rechargeable
6 hrs/charge with BAT003
4 dB
±
Size and W
Material and Color: Polypropylene, Gray
Battery T
Battery Life: 15 hrs with Eveready 216, 35 hrs with Eveready 522,
Charging Jack: Earphone jack is used for charging
Modulation Frequency: 95 kHz FM, 50 µS de-emphasis
Frequency Response: 200 Hz to 8 kHz,
Signal to Noise Ratio: 60 dB with WIR TX95, 70 dB with WIR TX10
Controls: Combination volume/On-Off wheel
Audio Output: 3.5 mm mono mini phone jack, 250 mW maximum into 16 Ω
Acoustic Output: 127 dB MAX SSPL90, 123 dB HFAVG SSPL90 w/EAR 013, 2 cc coupler
Compatibility: Compatible with most wide-band 95 kHz IR Transmitters
Warranty: 5 years*
On Indicator: Red LED
*90-day warranty on accessories.
NOTE: SPECIFICATIONS SUBJECT TO CHANGE WITHOUT NOTICE!
©2005, Williams Sound Corp. CAT 050G
1
SoundPlus
Williams Sound
®
Helping People Hear
Bid Specs:
The transmitter shall be encased in a grey, ABS plastic, compact in design for easy mounting on top of a TV, VCR or
audio equipment. The transmitter shall have 8 infrared LEDs that can transmit a signal up to 30 ft (line-of-sight) at 6
dB of intensity. There shall be a three-position slide switch for selecting 95 kHz, stereo, or 250 kHz operation. Two RCA
jacks shall be available for mono or stereo line-level input at 200 mV to 10 V . A 3.5 mm jack shall be available for microphone input at 1.5 kΩ. A television microphone shall be included to directly pick up the audio of the sound source
where there are no available jacks. The transmitter shall have a spare battery port for the RX295’s BAT AP97A on both
sides of the transmitter.
The transmitter shall serve as a charger for a single RX295 receiver (not included) plus two additional BAT AP97A
batteries.* The transmitter shall automatically turn off after 1.5 minutes of no audio. The transmitter shall be covered
by a five-year parts and labor warranty. The transmitter shall be the Williams Sound Corp. model WIR TX295.
The receiver shall be a body-pack type with an IR detector on the front of the unit. The receiver shall be housed in a
shatter-resistant plastic case with a hinged battery door that does not separate from the receiver. The receiver shall
operate on 95 kHz frequency with 50 µS de-emphasis. The receiver shall have a red LED “on” indicator. The unit shall
have a lanyard for hands-free operation. The receiver shall have a combination volume control and power on/off
rotator dial. The receiver shall operate for 15 hours with a 9 Volt alkaline battery and for 6 hours per charge with a
9 Volt NiMH rechargeable battery. The receiver shall have a 3.5 mm phone jack with an output of 250 mW. The phone
jack shall accommodate low-impedance mono earphones, headphones and neckloop telecoil couplers. The receivers
shall provide 127 dB SSPL90 output with an EAR 013 earphone. The receiver shall have a signal-to-noise ratio of 60 dB
with the TX95 transmitter and 70 dB with the WIR TX10 transmitter.
Infrared Listening System, Model 125
®
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 Sound Corp. model WIR RX3.
*Only one additional battery is supplied with the WIR 125 system.
NOTE: SPECIFICATIONS SUBJECT TO CHANGE WITHOUT NOTICE!
©2005, Williams Sound Corp. CAT 050G
2
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