Listen Technologies LA-140 Stationary IR Radiator, Gray

SKU: LTLA140GY MFR: LA-140-GY
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Key Features

  • Enhance your audio experience with the LA-140 IR Radiator for superior sound quality.
  • Achieve wide coverage up to 10,000 sq. ft. with this powerful Listen Technologies radiator.
  • Easy to install: Mount on walls, ceilings, desks, or tripods with included hardware.
  • Ensure clear audio in meetings & presentations using this assistive listening device.
  • Reliable connectivity: Compatible with LA-112, LR-4200-IR, and other Listen devices.
  • Long-range broadcasting: Supports up to 700' cable runs for extended applications.
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Special Order?Estimated to Ship: 08/18/2025
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Listen Technologies LA-140 Specifications

Controls

Controls

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  • User Controls

    Termination Switch, Delay Compensation Switch, Indicator LEDs on/off, Compatibility Switch

Indicators

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  • Red LED

    Indicates power is present.

  • Yellow LED

    Indicates no connection to transmitter or radiator.

  • Green LED

    Indicates carrier and power are present and radiator is emitting IR signal.

  • Frequency Range

    1 MHz - 5 MHz

  • Input/s

    BNC Connection. -25 dBm to -5 dBm input nominal

  • Output/s

    BNC Connection. -15 dBu nominal

  • Coverage Area

    10,000 sq. ft (929 sq. m) when used with Listen Receivers

  • Power Supply Input

    RJ-45 connector. 30 VDC, powered from transmitter via CAT-5 cable or optional LA-205 power supply.

  • Power Supply Output

    RJ-45 connector. 30 VDC, powers up to one additional radiator. (Maximum two radiators powered from each LT-82 transmitter or LA-205 power supply)

  • Emitter Power

    3 W

  • Cable Length

    250' with (1) LT-82 and (2) LA-140 or 700' with (1) LT-82 and (1) LA-140

Environmental

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  • 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

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  • Standards

    FCC Part 15, Industry Canada, CE, RoHS

Physical

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  • Color

    Gray

  • Mounting

    Radiator can be mounted on a wall, on a ceiling, in a corner, on a desk, on a mic stand or on a tripod. Wall box mounting plate fits a standard single gang electrical box.

  • Compatibility

    LA-112, LA-113, LA-342, LA-86, LR-42, LR-44, LT-82, LA-391, LA-390, LA-205, 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, LA-347-GY

  • Dimensions (W x H x D)

    8 x 5.50 x 2.60" (203 x 140 x 66mm)

  • Weight

    2.1 lb (0.95kg)
    2.4 lb (1.09kg) (Loaded)

About Listen Technologies LA-140

From the innovative minds at Listen Technologies comes the LA-140 Stationary IR Radiator, a high-quality and reliable solution for your infrared assistive listening needs. This durable and stylish gray unit is designed to deliver exceptional coverage with a simple setup, making it an ideal choice for venues seeking a fixed audio solution.

The LA-140 boasts a sleek and compact design that does not compromise on performance. It is capable of providing a substantial transmitting area of no less than 10,000 square feet (929 square meters), ensuring that every corner of your space receives clear and uninterrupted signals when used with the appropriate receivers.

For those looking to enhance their system's capabilities, the LA-140 offers the flexibility of expansion. Two units can be seamlessly mounted together, either horizontally or vertically, to double the power output while maintaining a low-profile presence in your environment. This innovative feature allows for a customizable setup tailored to the specific requirements of your listening area.

Ease of installation is at the forefront of the LA-140's design. The unit can be powered efficiently through standard CAT-5 cabling, and the RF signal is reliably carried via 50-ohm coaxial cable. The LA-140 is also equipped with three intuitive indicating LEDs that display power status, carrier presence, and signal absence, providing at-a-glance monitoring of the system's operation. These LEDs are designed to deactivate after 30 minutes of inactivity, conserving energy when the audio signal from the transmitter is not present.

Versatility is a key attribute of the LA-140, which comes complete with all necessary mounting hardware. Whether you need to install it on a wall, ceiling, desk, microphone stand, or tripod, this unit adapts to your specific setup requirements without compromising on aesthetics or functionality.

In conclusion, the LA-140 Stationary IR Radiator from Listen Technologies is a discreet yet powerful addition to any IR assistive listening system. Its innovative features, combined with a reputation for producing high-quality audio equipment, make it a superior choice for those seeking a stationary solution that is both effective and unobtrusive.

Listen Technologies LA-140 Features

  • Up to 929 sq. m (10,000 sq. ft) of reliable IR signal coverage
  • Two (2) radiators can be combined and powered by a single LT-82 transmitter or optional power supply via standard CAT-5 cabling
  • Can be mounted together horizontally or vertically for double the power in a compact space
  • Automatic radiator diode shutoff feature extends radiator life
  • Delay compensation to eliminate dropout in the infrared signal
  • Available in either white or Gray for discrete installation in a variety of settings

Product Documents

User Manual

Key Features

  • Enhance your audio experience with the LA-140 IR Radiator for superior sound quality.
  • Achieve wide coverage up to 10,000 sq. ft. with this powerful Listen Technologies radiator.
  • Easy to install: Mount on walls, ceilings, desks, or tripods with included hardware.
  • Ensure clear audio in meetings & presentations using this assistive listening device.
  • Reliable connectivity: Compatible with LA-112, LR-4200-IR, and other Listen devices.
  • Long-range broadcasting: Supports up to 700' cable runs for extended applications.

What's in the box:

  • LA-140 Stationary IR Radiator
  • Mounting Hardware (Allows for Wall/Ceiling/Desk/Mic Stand and Tripod Mounting)
  • 25' (7.6m) Coax Cable (Gray)
  • 25' (7.6m) CAT-5 Cable (Gray)
  • Quick Reference Card
  • Listen Technologies 3 Year Limited Warranty