Williams Sound SoundPlus WIR 237 User manual

SoundPlus™
TV Infrared Listening System • Model WIR 237
SoundPlus™ TV Infrared Listening System • Model WIR 237
©2007, Williams Sound Corp. MCAT 052B 1
NOTE: SPECIFICATIONS SUBJECT TO CHANGE WITHOUT NOTICE!
Description:
The WIR 237 system is ideal for TV or stereo listening, meetings, offices, or other small group listen-
ing applications. It connects directly to your TV, VCR, or DVD equipped with standard audio output
jacks. The system features the versatile WIR RX237 receiver; with a 3.5mm jack, the listener can
plug in a variety of stereo or mono earphone, headphone, or neckloop accessories. The receiver’s
on/off switch is conveniently built into the jack of the unit.
Applications:
• Television Listening • Stereo Listening • Small Group Listening • Language Interpretation • Offices
Size, Weight, 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: 2.3 MHz, 2.8 MHz, or stereo
Range: 30ft (9m) line-of-site
Auto Power On/Off: Transmitter shuts off infrared after 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: 6 IR LEDs, 45 degree cone-shaped coverage pattern to 6 dB intensity, 30 ft (9 m) line of sight
Charging Ports: Charges one WIR RX238 Receiver plus two additional BAT AP97A NiMH battery packs**
Approvals: RoHS, WEEE
Warranty: 5 years, parts and labor*
WIR TX238 Transmitter:
R
+
-
DC12V
L MIC
TX238 Front TX238 Rear
*90 days on accessories.

SoundPlus™
TV Infrared Listening System • Model WIR 237
SoundPlus™ TV Infrared Listening System • Model WIR 237
©2007, Williams Sound Corp. MCAT 052B 2
NOTE: SPECIFICATIONS SUBJECT TO CHANGE WITHOUT NOTICE!
Weight: 1.7 oz (50 g) with battery
Material and Color: ABS plastic, Black
Battery Type, Life: BAT AP97A NiMH Battery Pack, 6
hours
Modulation Frequency: 2.3 and 2.8 MHz
Frequency Response: 200 Hz to 8 kHz, ± 5 dB
Signal-to-Noise Ratio: 60 dB at 9 m
Controls: Volume control thumbwheel; screw-
driver adjust balance
and (L & R) tone controls
Acoustic Output: 115 dB MAX SSPL90 with EAR 013
(2cc coupler)
Compatibility: Compatible with transmitters operat-
ing on 2.3 MHz/2.8 MHz
Power Switch: Built into jack
Approvals: RoHS, WEEE
Warranty: 5 years, parts and labor*
WIR RX237 Receiver:
RX237 Front
(Earphone not included.)
*90 days on accessories.

SoundPlus™
TV Infrared Listening System • Model WIR 237
SoundPlus™ TV Infrared Listening System • Model WIR 237
©2007, Williams Sound Corp. MCAT 052B 3
NOTE: SPECIFICATIONS SUBJECT TO CHANGE WITHOUT NOTICE!
TX238 Transmitter
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 6 infrared LEDs that can transmit a signal up to
30 ft (line-of-sight) at 6 dB of intensity. There shall be a two position slide switch for selecting stereo or
mono (2.3/2.8 MHz) 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 k. 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 battery charger for the RX238’s BAT AP97A on each side of the transmitter.
The transmitter shall serve as a charger for a single RX238 receiver plus two additional BAT AP97A bat-
teries.** The transmitter shall automatically turn off after 5 minutes of no audio. The transmitter shall
have RoHS and WEEE approval and be covered by a five-year parts and labor warranty.* The transmitter
shall be the Williams Sound Corp. model WIR TX238.
RX237 Receiver
The receiver shall be underchin with an IR detector lens in the face of the unit. The receiver shall be
compatible with transmitters operating on 2.3 MHz/2.8 MHz. The receiver shall have a rotary-type vol-
ume control and the power switch shall be built into the “jack,” so that the unit will automatically shut
off when the earphone or headphone is unplugged. The receiver shall have left and right tone and bal-
ance control adjustable by a screwdriver. The receiver shall operate for 6 hours per charge with 1 BAT
AP97A NiMH battery. The receiver shall be housed in a black ABS plastic case. The receiver shall provide
115 dB SSPL90 output (w/EAR 013). The system frequency response shall be 200 Hz to 8 kHz, and the sig-
nal-to-noise ratio shall be 60 dB at 9 m. The receiver shall have RoHS and WEEE approval and be covered
by a five-year parts and labor warranty*, 90 days on the battery. The receiver shall be the Williams
Sound Corp. model WIR RX237.
**Only one additional battery is supplied with the WIR 237 system.
Bid Specs:
*90 days on accessories.

SoundPlus™
TV Infrared Listening System • Model WIR 237
SoundPlus™ TV Infrared Listening System • Model WIR 237
©2007, Williams Sound Corp. MCAT 052B 4
NOTE: SPECIFICATIONS SUBJECT TO CHANGE WITHOUT NOTICE!
United States
Williams Sound Corp.
10321 W. 70th Street
Eden Prairie, MN 55344-3446
Ph: 800-328-6190 or 952-943-2252
Fax: [phone]
Email: [email protected]
Web: www.williamssound.com
Canada
Thorvin Electronics
2861 Sherwood Heights Dr. Units 36-37
Oakville, ON L6J-7K1 Canada
Ph: 800-323-6634 or 905-829-3040
Fax: [phone]
Web: www.thorvinelectronics.com
Asia, Australia, Latin America, Middle East, South Africa
International Sales Department
Williams Sound Corp.
10321 W. 70th Street
Eden Prairie, MN 55344 USA
Phone: [phone]
Fax: [phone]
Email: [email protected]
Web: www.williamssound.com
Contact: