Williams Sound WIR 237 - Manual (Page 3)

SoundPlus
™
TV Infrar
ed 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.