Listen Technologies LT-82 ListenIR 1-Channel Transmitter

SKU: LTLT8201 MFR: LT-82-01
Earn VIP Reward Points

Key Features

  • Experience superior audio clarity with the LT-82 ListenIR transmitter.
  • Ensure seamless assistive listening with balanced XLR and 1/4" inputs.
  • Optimize sound with adjustable input levels & compression; great audio solutions.
  • Easily monitor audio output via the front panel headphone jack for presentations.
  • Expand your system using multiple outputs for radiators & other transmitters.
  • Rely on stable RF carrier frequencies for clear, uninterrupted audio delivery.
See More Product Details
Special Order?Estimated to Ship: 09/08/2025
Free Shipping

See Options

1

Protect your gear with Adorama Protect.* Learn more

2 Year

$119.99

3 Year

$154.99

5 Year

$269.99

Available to U.S. customers only.

Need help? Ask our experts.

Overview
Compare
Specs
Protection
Q&A

Questions & Answers

Reviews about this item

Review Summary

Select a plan in the Add Protection section above and purchase with this product by clicking “Add to Cart”.

image-protection

TRUSTED PROTECTION PLANS, EXCEPTIONAL SERVICE.

Invest In Your Gear and Peace Of Mind!

Accidents happen. Protect your favorite Adorama products and purchase a protection plan to stay covered from accidental damage, mechanical or electrical failures, and more.

Repair or Replacement

Repair or Replacement

If we can’t fix it, we’ll replace it at no additional cost.

Accidental Damage

Accidental Damage

Protect your product from drops, spills, and more.

Peace of Mind

Peace of Mind

Enjoy your gear without fear. We have you covered!

Failure Protection

Failure Protection

When regular use of your product over time results in mechanical or electrical failure.

Zero Deductible

Zero Deductible

We will never charge you a deductible after the purchase of a plan.

Customer-Focused Support

Customer-Focused Support

Our claims process is simple & easy and our customer service team is happy to help.

Adorama Protect powered by Extend is available for purchase to customers in the United States. Not available for international or U.S. territories purchases. Plans on open box items do not cover pre-existing damage.
Adorama Protect plans are available for ABS clients. If you have any questions or require assistanse, please call 800-223-2500

Listen Technologies LT-82 Specifications

Audio
  • Frequency Response

    63 Hz - 15 kHz (+/- 3 dB)

  • Signal-to-Noise Ratio

    Mono: > 60 dBStereo: > 52 dB

  • System Distortion

    < 2% total harmonic distortion (THD)

  • Audio Input 1

    Mono Input (Rear Panel). Female-XLR and 1/4 in. combo connector, balanced, 0/-55 dBu (line/mic) nominal input level adjustable; +21/-30 dBu (line/mic) maximum input level; impedance 20k/1k ohms (line/mic); phantom power +12 VDC

  • Audio Input 2

    Stereo or Mono Input (Rear Panel). Two (2) Phono connectors, unbalanced, -10/+10 dBu nominal input level adjustable, +30 dBu maximum, impedance 100k

  • Audio Processing

    Compression can be turned on/off.

  • Contour

    Cuts and boosts frequencies above 5 kHz

  • Monitor Output

    Front panel. One (1) 3.5 mm (0.14 in.) connector, unbalanced, adjustable output level, +7 dBu maximum, impedance 10 ohms. 100 mW, 32 ohms

  • Outputs

    Input 1 and Input 2 Mixed Output (Rear panel). Two (2) Phono connectors, unbalanced, -10 dBu nominal output level, +19 dBu maximum, impedance 10 ohms

Controls

Jump to...
  • Programming

    Stereo on/off, Processing on/off

  • Front Panel

    Power, Test Tone on/off, Channel up/down, Input Level, Transmit Level, Contour, Monitor Level

  • Rear Panel

    Input 1 Level (Line, Mic, Mic-Phantom Power), Input 2 Level (-10/+10 dBu)

  • Internal Adjustments

    Compression ratio for audio processor. Slope adjustable from 1:1 to 4:1. Default 2:1

Indicators

Jump to...
  • LCD

    Channel designation, lock status, RF Carrier, programming (front panel)

  • Unit Power

    Red LED illuminates when the unit is powered up (front panel)

  • Input 1, Input 2, Transmit Level

    Indicates Input 1, Input 2, and Transmit audio levels. 10 segment LED's (8 green, 2 red)

  • Stereo

    Indicated by a green LED when on (front panel)

  • Processing

    Indicated by a green LED when on (front panel)

  • RF Carrier

    Indicates carrier is active on the LCD Display (front panel)

  • Test Tone

    Red LED illuminates when test tone enabled (front panel)

  • Inputs

    One (1) BNC connector, for connection from additional transmitter(s). 50 mV, 50 ohm, -15 dBm

  • Outputs

    Two (2) BNC connectors, for connection to radiator(s) and/or additional transmitter(s). 50 mV, 50 ohm, -15 dBm

  • Carrier Frequencies

    2.3 MHz, 2.8 MHz, 3.3 MHz, 3.8 MHz

  • Number of Channels

    Four (4) channels. Selectable one (1) channel per transmitter (mono or stereo)

  • Frequency Accuracy

    +/- .005% stability 0 to 50 Degree C

  • Carrier Shut Off

    Carrier will shut off when no audio is present for 30 minutes to preserve radiator life.

  • Transmitter Stability

    50 PPM

  • Power Supply

    In-line switching mode power supply, Listen part number LA-205

  • Power Supply Input

    100-240 VAC, 47-63 Hz

  • Power Supply Output

    30 VDC, 1.5 A

  • Power Supply Connector

    RJ-45

  • Power Output

    Two (2) RJ-45 jacks. For remote powering up to two (2) radiators

Environmental

Jump to...
  • Temperature - Operation

    14 Degree F (-10 Degree C) to +104 Degree F (40 Degree C)

  • Temperature - Storage

    -4 Degree F (-20 Degree C) to +122 Degree F (50 Degree C)

  • Relative Humidity

    0 to 95% relative humidity, non-condensing

Compliance

Jump to...
  • Standards

    FCC Part 15, Industry Canada, CE, RoHS, UL

Physical

Jump to...
  • Color

    Dark Gray

  • Rack Mounting

    One (1) rack space high (1U), 1/2 rack space wide. One (1) or two (2) transmitters can be mounted in a single rack space. Optional Rack mount (LA-326) not included.

  • Power Line Cord

    North America, Type B, (LT-82-01)Asia, UK, Type G, (LT-82-02)Euro Type J, (LT-82-03)

  • Compatibility

    LA-112, LA-113, LA-140-GY, LA-89, LR-42, LR-44, LA-391, LA-390, LA-274, LA-277, LA-278, LA-279, LA-304, LA-303, LR-4200-IR, LR-5200-IR, LR-4200-IR-P1, LR-5200-IR-P1, LP-40-IR-01, LP-41-IR, LP-50-IR, LP-51-IR, LR-X200-IR

  • Dimensions (W x H x D)

    8.50 x 1.75 x 9.13" (21.5 x 1.75 x 9.13cm)

  • Weight

    2.6 lb (1.18kg)
    With Power Supply: 3.8 lb (1.72kg)

About Listen Technologies LT-82

The heart of the Listen Technologies ListenIR system is the LT-82 single-channel transmitter. Capable of operating in either mono or stereo modes, the LT-82 transmits your audio signal to and provides DC power for one or more LA-140 infrared radiator/emitter units through a standard CAT-5 cable. Plus, units can be combined to offer up to four (4) channels of mono or stereo audio for expanded applications.

Easy to install and backed by a limited lifetime warranty, the LT-82 transmitter is an ideal infrared transmitter for a wide range of assistive listening needs, including theaters, houses of worship, language interpretation, and more.

Architectural Specs
The Stationary IR Transmitter shall be capable of broadcasting on four (4) mono or stereo carriers; 2.3, 2.8, 3.3 and 3.8 MHz. Channel Selection shall be capable of being locked. Multiple transmitters shall be capable of being daisy-chained together to transmit up to four (4) channels simultaneously. The transmitter shall have a timer that shuts off the carriers after 30 minutes when no audio is present at the transmitter. The transmitter shall have a SNR of 60 dB or better. The device shall have an audio frequency response of 63 Hz to 15 kHz, +/- 3db. It shall have two (2) mixing audio inputs, one (1) balanced XLR/phone input and one (1) unbalanced RCA input.

The device shall have the following audio controls:input level, transmit level, contour level and stereo on/off control. The device shall have an audio processor that is capable of automatic gain control and limiting. The transmitter shall provide power for up to two (2) radiators over CAT-5 cable. The LT-82 is specified.

Listen Technologies LT-82 Features

  • Expandable and affordable transmitter unit for infrared assistive listening systems
  • Provides DC power for up to two (2) LA-140 radiator/emitter units via standard CAT-5 cabling
  • Audio signal is provided to the LA-140 radiator/emitter units via RG-58 coaxial cable
  • Transmits up to four (4) channels or mono or stereo audio (one channel per LT-82 unit)
  • Crystal-clear and secure audio performance for venues, houses of worship, meetings, conference rooms, and more

Product Documents

User Manual

Key Features

  • Experience superior audio clarity with the LT-82 ListenIR transmitter.
  • Ensure seamless assistive listening with balanced XLR and 1/4" inputs.
  • Optimize sound with adjustable input levels & compression; great audio solutions.
  • Easily monitor audio output via the front panel headphone jack for presentations.
  • Expand your system using multiple outputs for radiators & other transmitters.
  • Rely on stable RF carrier frequencies for clear, uninterrupted audio delivery.

What's in the box:

  • LT-82 ListenIR 1-Channel Transmitter
  • LA-205 30 VDC Extension/Replacement Power Supply for LA-140/LT-82
  • LA-89 Interconnection Coaxial Cable
  • Quick Reference Card
  • Listen Technologies Lifetime Limited Warranty