Listen Technologies LA-141
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Listen Technologies LA-141

The Listen Technologies LA-141 expansion radiator expands on the functionality and coverage area of the LT-84 Infrared Transmitter/Radiator combo system.

Up to four (4) LA-141 expansion radiators can be added to the LT-84 system, providing additional coverage of up to 2,787 m² (30,000 ft²) with LR-4200-IR/LR-5200-IR receivers or 697 m² (7,500 ft²) with LR-42/LR-44 receivers in single-channel mode.

A single CAT-5e cable provides both power and signal to the radiators. Mounting hardware is included and the single-cable design simplifies installation and setup.

Infrared
List Ex VAT: £553.80
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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

 

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

 

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

RF

 

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

IR

 

Coverage Area

30,000 ft² (2787 m²) single channel with LR-4200-IR/LR-5200-IR receivers or 7,500 ft² (697 m²) single channel with LR-42/LR-44 receivers

IR Emitter Power

1.49 W

Power

 

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

Physical

 

Colour

Black with White Silk Screening

Shipping Weight

3.0 lbs. (1.4 kg)

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.

Dimensions (H x W x D)

1.5 x 10.7 x 4.1 in. (3.81 x 27.2 x 10.5 cm)

Unit Weight

0.6 lbs. (0.3 kg)

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