Listen Technologies LA-141 IR Expansion Radiator For LT-84 Only

SKU: LTLA141 MFR: LA-141
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Key Features

  • Enhance your LT-84 system with the LA-141 IR expansion radiator for wider coverage.
  • Achieve crystal-clear audio in large venues using this expansion radiator's superior signal.
  • Simple setup: Mount on walls, ceilings, or tables with included hardware for convenience.
  • Extend assistive listening range up to 30,000 sq ft with LR-4200-IR/LR-5200-IR receivers.
  • Ensure consistent audio quality with low system distortion for seamless presentations.
  • Save energy with power save mode, which shuts off when no audio is present.
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Special Order?Estimated to Ship: 09/20/2025
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Listen Technologies LA-141 Specifications

Audio
  • System Distortion

    < 2% (THD) System Specification (wireless end-to-end with LR-44)

  • System Signal to Noise Ratio

    (A-Weighted): > 60 dB (SNR) System Specification (wireless end-to-end with LR-44)

  • System Frequency Response

    63 Hz - 15 kHz (+/- 3 dB) System Specification (wireless end-to-end with LR-44)

Controls

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  • Indicator Lights On/Off Switch

    Two (2) position switch - Indicator Lights OFF, Indicator Lights ON

  • Delay Compensation

    Four (4) position rotary switch setting (0, 1, 2, 3)

Indicators

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  • RJ-45 Amber LED

    Solid Amber indicates carrier is present and IR is being transmitted

  • RJ-45 Green LED

    Solid Green indicates power is applied to unit

  • Carrier Frequencies

    2.3 MHz, 2.8 MHz, 3.3 MHz, 3.8 MHz

  • Number of Channels

    Two (2) channels

  • Power Save Mode

    Carrier will shut off when no audio is present for 15 minutes on both channels to preserve radiator life.

  • Expansion Link Output

    One (1) RJ-45 connector - Provides RF Signal and Power to one additional LA-141.CAT-5e cable 24 AWG, 100 ft. (30 m) maximum cable length, two (2) LA-141s per daisy chain (total daisy chain cannot extend beyond two expansion radiators)

  • Expansion Link Input

    One (1) RJ-45 connector - Receives RF Signal and Power from LT-84

  • Coverage Area

    30,000 ft square (2787 m square) single channel with LR-4200-IR/LR-5200-IR receivers or 7,500 ft square (697 m square) single channel with LR-42/LR-44 receivers

  • IR Emitter Power

    1.49 W

  • Power Supply

    12 VDC, Provided via LT-84 Expansion Link Output RJ-45s

  • Current Draw

    600 mA per LA-141, maximum of two (2) LA-141s daisy chained with CAT-5e cable 24 AWG 100 ft. (30 m) to each LT-84 Expansion Link Output

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, ICS-03, CE, UL, CUL, C-Tick, CCC, PSE, KC, GS, RoHS, WEEE

Physical

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  • Color

    Black with White Silk Screening

  • Mounting

    Can be mounted on a wall, ceiling, or table with provided hardware (screws and hollow wall anchors not provided). Optional LA-347 Wall Box Mounting Plate is available for mounting to a standard single gang electrical box.

  • Compatibility

    LT-84, LA-343, LA-344, LA-345, 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, LA-338, LR-X200-IR, LA-347-GY

  • Dimensions (H x W x D)

    1.5 x 10.7 x 4.1" (3.81 x 27.2 x 10.5cm)

  • Unit Weight

    0.6 lb (0.3kg)

About Listen Technologies LA-141

You can enhance your LT-84 Infrared Transmitter/Radiator combo system with the high-quality LA-141 Expansion Radiator from Listen Technologies. This innovative device is specifically designed to expand the functionality and coverage area of your LT-84 system, providing an uninterrupted, superior listening experience.

The LA-141 Expansion Radiator allows for the addition of up to four units to your LT-84 system, significantly increasing the coverage area. With LR-4200-IR/LR-5200-IR receivers, you can achieve additional coverage up to 30,000 square feet (2,787 square meters). Alternatively, with LR-42/LR-44 receivers in single-channel mode, you can extend the coverage up to 7,500 square feet (697 square meters).

This efficient and reliable expansion radiator is powered and connected via a single CAT-5e cable, ensuring a streamlined setup process. The included mounting hardware and single-cable design simplify the installation, making it a breeze even for those with limited technical knowledge.

The LA-141 Expansion Radiator is capable of receiving four mono carrier frequencies of 2.3, 2.8, 3.3, and 3.8 MHz over a proprietary RJ-45 Expansion Link. It also features an automatic deactivation of the IR emitting LEDs after 15 minutes of inactivity, conserving energy and extending the lifespan of the device.

When connected to a Trans-Radiator, the LA-141 ensures a system audio performance of 60 dB SNR or better, a THD of less than 2%, and a frequency response of 63 Hz to 15 kHz, +/- 3db. The device also provides delay compensation via two rotary four-position switches for up to two audio channels.

The LA-141 Expansion Radiator is a durable and reliable addition to your LT-84 system, allowing for an enhanced audio experience and expanded coverage area.

Listen Technologies LA-141 Features

  • The only product of its kind that provides complete, gap-less coverage in small- to mid-size spaces
  • Up to four radiators can be added to the LT-84 system providing additional coverage up to 2,787 m square (30,000 ft square)
  • Single-cable CAT-5e provides power and audio signal for ease of setup
  • Simple installation with the included mounting hardware

Product Documents

User Manual

Key Features

  • Enhance your LT-84 system with the LA-141 IR expansion radiator for wider coverage.
  • Achieve crystal-clear audio in large venues using this expansion radiator's superior signal.
  • Simple setup: Mount on walls, ceilings, or tables with included hardware for convenience.
  • Extend assistive listening range up to 30,000 sq ft with LR-4200-IR/LR-5200-IR receivers.
  • Ensure consistent audio quality with low system distortion for seamless presentations.
  • Save energy with power save mode, which shuts off when no audio is present.

What's in the box:

  • LA-141 ListenIR Expansion Radiator
  • 25' (7.6m) CAT-5e Cable
  • LA-344 Flexible Mounting Hardware
  • Quick Start Guide
  • Listen Technologies 3 Year Limited Warranty