Listen Technologies LT-82 Stereo Receiver User Manual


 
LT-82 Stationary IR Transmitter
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1 Audio Section The input level of inputs 1 and 2 are adjusted by the INPUT control and are indicated on
the  rst two VU meters. Final transmit level is adjusted with the TRANSMIT LEVEL control. The CONTOUR
control boosts or cuts audio above 5 kHz. The PROCESS indicator is illuminated when the internal audio
processor is activated. The STEREO indicator is illuminated when the stereo encoder is activated. A test
tone is available to aid in set up.
2. Transmit Section Use the UP and DOWN buttons to select the transmission channel. The LCD
conveniently shows the selected channel, radiation status (on or o ), lock and programming status.
3. Monitor Section You can listen to the transmitted audio using the monitor jack and volume control.
4. RF Section RF is delivered to the radiators using the two RF OUTPUT BNC
connectors. If more than one channel is required, daisy chain multiple LT-82 units together.
5. Power Section Connect the universal power supply (included) to the unit with the POWER INPUT RJ-45
connector. The POWER OUTPUT connectors are used to power up to two LA-140 radiators.
6. Audio Output Section The stereo, line level phono connectors provide an output
consisting of a mix of inputs 1 and 2.
7. Audio Input Section Connect your audio source to inputs 1 and/or 2. Input 1 accepts a mono 3-pin
XLR or phone connector with balanced, selectable mic, phantom mic or line level audio. Input 2 accepts
stereo phono connectors and is unbalanced with selectable input levels of -10 and +10dBu.
The Listen LT-82 is the heart of the stationary IR listening
system. It takes the desired audio signal and sends it via coaxial
cable to one or more IR radiator(s) (LA-140). The LT-82 can be
operated in mono or stereo on one of four di erent carriers;
up to four LT-82 units may be connected to provide up to four
mono or stereo carriers to the radiator(s). The LT-82 generates
DC power to power up to two LA-140 radiators. Two LT-82 units
can be rack mounted in one rack space using the universal rack
mount kit (LA-326). The LT-82 is used for government
compliance (such as ADA), assistive listening, language
interpretation, live theatre, houses of worship, courtrooms,
secure rooms, and auditory description.
• Input voltage 100-240VAC, 47-63Hz.
• System audio performance 63-15KHz
frequency response, >60dB signal to
noise ratio (SNR) and <2% total
harmonic distortion (THD).
• LT-82-01 North America
• LT-82-02 Asia, UK
• LT-82-03 Europe
Key Speci cations
Con gurations
Accessories
• Use up to four LT-82 units to create a 1 to 4
(mono or stereo) channel system.
• The LT-82 will power up to two LA-140 radiators.
• Several audio input con gurations to  t most
installations.
• Audio processing can be activated as desired.
Highlights
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Accessories for the LT-82 can be found on the
Stationary IR Accessories page 6.