SoundPlus
®
Infrar
ed System •
Model WIR SYS 90V
SoundPlus
®
Infrared System •
Model WIR SYS 90V
D
D
NOTE: SPECIFICATIONS SUBJECT TO CHANGE WITHOUT NOTICE!
Bid Specs
WIR TX90 Transmitter
The Williams Sound Corp. WIR TX90 transmitter shall consist of an all-in-one modulator and emitter operating on switchable
carrier frequencies of 2.3/2.8 MHz or 3.3/3.8 MHz. The carrier frequency shall use 50 kHz deviation and 50µs pre-emphasis.
The transmitter shall have a range of 28,000 ft
2
(2,600 m
2
) in single channel mode when using the RX22-4 receiver. The trans-
mitter shall be contained in a metal housing with a durable plastic lens. The transmitter shall be convection cooled without
fans. The transmitter shall include an omni-directional mounting bracket for permanent installations. Additional brackets
shall be available for different mounting options.
The transmitter shall provide two channels of selectable carrier frequencies: CH A 2.3/2.8 MHz or CH B 3.3/3.8 MHz. Two trans-
mitters used in tandem shall provide up 4 simultaneous channels.
The transmitter shall have two Phoenix connectors on the back for balanced or unbalanced line input. All controls and indi-
cators shall be accessible on the bottom of the panel of the transmitter.
The transmitter shall have three application presets: Music, Hearing Assistance and Voice accessible by thumbscrew adjuster.
There shall be a 3.5mm stereo headphone jack for monitoring the processed audio before being transmitted.
Two BNC (50
Ω
) baseband output jacks shall be provided on the back panel for more coverage needs. The TX9 emitter panels
must be used with the TX90 transmitter via RG58 coax cable.
The transmitter shall be powered by an external 24VAC, 50-60 Hz, 35VA power supply. The power connector shall be a three
pin Molex type. Additional emitters shall require individual external power supplies.
The transmitter shall be covered by a five-year warranty on parts and labor. The transmitter shall be the Williams Sound Corp.
model WIR TX90
WIR RX22-4 Receiver
The receiver shall be a body-pack type with IR detector lens behind face of the unit. The unit shall have a lanyard for hands-
free operation. The receiver shall have a rotary-type volume control. The receiver shall operate for 60 hours with two AA
alkaline batteries and for 30 hours per charge with NiMH AA batteries. The receiver shall be charged without battery
removal via charger contacts in the case. A drop-in charger accessory shall recharge the batteries in 8 hours when used with
CHG 3512 charger. The receiver shall be housed in an impact resistant plastic case with a hinged battery door that does not
separate from the receiver. The receiver shall receive 2.3 MHz, 2.8 MHz, 3.3 MHz or 3.8 MHz modulated IR signals with 50 µS
de-emphasis. The receiver shall have a 3.5 mm stereo phone jack and accommodate low-impedance mono or stereo ear-
phones and headphones. The receiver shall accommodate neckloop telecoil couplers. The receivers shall provide 110 dB
SSPL90 output with EAR 013 earbud-type earphone.
The system electrical frequency response shall be 25 Hz to 16 kHz, +1, -3 dB and the signal-to-noise ratio shall be 60 dB. The
receiver shall have CE, FCC, RoHS, and WEEE approval. 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 RX22-4.
WIR RX14-2 Receiver
The receiver shall be a headset style with IR detectors positioned on top of each individual earphone. The receiver shall
operate on 2.3 MHz or 2.8 MHz frequency. The receiver shall have an individual rotary-type volume control on each individ-
ual earphone and a on/off selection switch on the right earphone. The receiver shall have a push button frequency selector
to choose between 2.3 MHz or 2.8 MHz operation. The receiver shall provide 118 dB SSPL90 output, +/- 1 dB, and a signal-
to-noise ratio of 58 dB. The receiver shall operate up to 50 hours when using AAA alkaline non-rechargeable batteries. The
receiver shall be encased in a black, plastic case. The receiver shall operate up to 3,500 ft
2
(325 m
2
) when using a single WIR
TX9 Emitter. The receiver shall have CE, RoHS, and WEEE approval and be covered by a one-year parts and labor warranty,
not including batteries or accessories.
The receiver shall be the Williams Sound Corp. model WIR RX14-2.
©2008, Williams Sound Corp. MCAT 064A
9
