W
ARRANTY
The WIR TX7 carries a five year parts and labor warranty. The TV microphone, earphones,
headphones, rechargeable batteries, adaptors, and AC to DC Power Adaptor carry a 90 day
warranty. Be sure to fill out and mail the Warranty Card to register your warranty.
WIR TX7 L
ISTENING
S
YSTEM
S
PECIFICATIONS
TX7 T
RANSMITTER
:
Size and Weight:
8.5 cm W x 12.5 cm H x 10.5 cm D (3.4" x 4.2" x 4.1"), 177 g (6.2 oz.)
Power Input:
12 VDC from 115 VAC, 60 Hz, 200 mA Class II wall transformer (UL-Listed) center is positive
on DC connector
Subcarrier Frequency:
250 kHz FM
Auto On/Off Indicator:
Illuminates when12 VDC power and an audio signal are applied,
Transmitter shuts off 2–3 minutes after audio signal is removed.
Microphone Input:
3.5 mm jack connects to either MIC 070 Microphone or to Direct Audio Input with 5 k
½
impedance.
Automatic Level Control:
30 dB compression range: 25 mV to 750 mVrms max. at 1 kHz
Frequency Response:
100 Hz to 10 kHz, ± 3 dB
Distortion:
1% Max. THD
I
NFRARED
R
ECEIVER
, M
ODEL
WIR RX7
Size and Weight:
3-5/8" L x 2-3/8" W x 7/8" H (9.2 cm x 6 cm x 2.4 cm) 4.48 oz. (127 g)
Color and Material:
Gray, shatter-proof polypropylene
Battery Type:
1.5V (AA) x 2, Alkaline (BAT 001) or Rechargeable AA Ni-Cad (BAT 026)
Battery Life:
30 hours with BAT 001, 15 hours/charge with BAT 026, 25 mA, nom. current drain
Modulation Frequency:
250 kHz FM, 50 µS de-emphasis
Signal to Noise Ratio:
60 dB with WIR TX7
Controls:
Combination volume/On-Off knob,
Switched Low-Cut tone control (Lo: 20 Hz / Mid: 120 Hz / Hi: 700 Hz)
Audio Output:
3.5 mm mono mini phone jack, 35 mW maximum into 16
½
Acoustic Output:
130 dB MAX SSPL90 with EAR 013
Note:
The RX7 Infrared Receiver can be used with a Neckloop TeleCoil Coupler
(NKL 001) to magnetically couple into a hearing aid that has a telephone pick-up coil.
Add’l Compatible Receivers:
WIR RX5:
Selectable Channel Infrared Receiver, operates at either 95 kHz or 250 kHz
A
CCESSORIES
CHG 200 Multi-Charger
This charger is designed to store and charge one or two receivers simultaneously
overnight. 110 VAC. Use with Williams Sound BAT 022 rechargeable AA Ni-Cad batteries
only.
Williams Sound Corp.
10399 West 70th St., Eden Prairie, MN 55344-3459
U.S.A. 800-328-6190 / 612-943-2252 / FAX: 612-943-2174
© 1998, Williams Sound Corp
MAN 087 A
