Listen Technologies LT-84-01 / LT-84-01-D ListenIR 2-Channel Transmitter/Radiator Combo Variants:

Vendor: Listen Technologies
Listen Technologies LT-84-01 / LT-84-01-D ListenIR 2-Channel Transmitter/Radiator Combo Variants: LT-84-01 - w/o DanteLT-84-01-D - w/ Dante The Listen Technologies' LT-84-01 / LT-84-01-D ListenIR 2-Channel Transmitter/Radiator Combo provides venues, businesses, government agencies, and...
$708.00 $786.00
Package Inclusion

Listen Technologies LT-84-01 / LT-84-01-D ListenIR 2-Channel Transmitter/Radiator Combo

Variants:

LT-84-01 - w/o Dante
LT-84-01-D -
w/ Dante

The Listen Technologies' LT-84-01 / LT-84-01-D ListenIR 2-Channel Transmitter/Radiator Combo provides venues, businesses, government agencies, and more with an affordable and easy-to-use assistive listening solution.

The LT-84 can deliver a clear, dependable signal across 2,787 square meters with twice the IR power and up to six times the coverage area of comparable devices (30,000 square feet). Users in every mid-sized location, from the boardroom to the courtroom and beyond, are guaranteed an uninterrupted audio performance thanks to this signal range. The LT-84 is also the first infrared assistive listening system to feature expansion radiators (LA-141), which provide delay compensation to ensure that there are no signal cancellation dropouts. Up to four (4) expansion radiators (LA-141) can be added to the system to offer additional coverage (when mounted within 30.48 m [100 ft.] from the unit).

In addition, the LT-84 is the only two-channel transmitter-radiator that can transmit on up to four different frequencies (2.3 MHz, 2.8 MHz, 3.3 MHz, or 3.8 MHz). This flexibility in the field makes setup and operation even easier, while also eliminating the need to purchase separate, frequency-specific transmitter-radiator units. With the included mounting hardware, and the flexible frequency selection and input connectivity, the LT-84 is an ideal way to add infrared assistive listening capabilities and ADA compliance to your business or venue.

Includes:
One (1) LT-84 ListenIR 2-Channel Transmitter/Radiator Combo
One (1) LA-507 XLR-F to Terminal Block Cable
One (1) LA-210 12 VDC Universal Power Supply/Power Cord
One (1) LA-344 Flexible Mounting Hardware
Two (2) Phoenix Type Connectors
One (1) LA-303 Multi-Lingual Assistive Listening Notification Sign
One (1) Quick Start Guide

Included only in w/ Dante Variant:

One (1) LA-465 Dante 1 Channel Output XLR Adapter (POE required)

Audio

Frequency Response 20 Hz - 20 kHz (+/- 1 dB) Line Input63 Hz - 15 kHz (+/- 3 dB) System Specification (wireless end-to-end with LR-44)
Signal-to-Noise Ratio > 70 dB (SNR) Line Input> 60 dB (SNR) System Specification (wireless end-to-end with LR-44)
Microphone Input Two (2) 3.5 mm (0.14 in.) Tip/Sleeve connector, -30 dBu nominal input, +14 dB headroom, impedance 4.4k Ohms, 5 VDC bias supply
Total Harmonic Distortion < 0.1% (THD) Line Input< 2% (THD) System Specification (wireless end-to-end with LR-44)
Unbalanced Line Input Stereo/Mono Input. Two (2) Dual (RCA) Phono connectors, unbalanced, -10 dBu nominal input, +14 dB headroom, impedance 10k Ohms
Balanced Line Input Mono Input. Two (2) Phoenix Type connector, balanced, + 4 dBu nominal input, +14 dB headroom, impedance 100k Ohms

Controls

Power Switch Three (3) position switch - Power OFF, Power ON-Indicator Lights OFF, Power ON-Indicator Lights ON
Carrier Frequency Selection Two (2), four (4) position rotary switches (2.3 MHz, 2.8 MHz, 3.3 MHz, 3.8 MHz)
Level Control Knob Two (2) audio taper rotary potentiometer, counter-clockwise decreases input mix level, clockwise increases input mix level

Indicators

Power Supply LED Green LED on in-line power supply indicates AC power is applied
Audio Level Indicators Two (2) Green LEDs, two (2) Red LEDs, Green LED indicates Audio presence and Red LED indicates peaks in the audio
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, flashing indicates unit has entered power save mode

RF

Carrier Frequencies 2.3 MHz, 2.8 MHz, 3.3 MHz, 3.8 MHz, Selectable
Number of Channels Two (2) channels, Selectable carrier frequency
Frequency Accuracy +/- .005% stability 0 to 50 °C
Transmitter Stability 50 PPM
Modulation FM Wideband, ±50kHz deviation max, 50 ?S pre-emphasis
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 Two (2) RJ-45 connectors - Provides RF Signal and Power, CAT-5e cable 24 AWG, 100 ft. maximum cable length, two (2) LA-141s per output connector

IR

Coverage Area 2,787 m² (30,000 ft²) single channel with LR-4200-IR/LR-5200-IR receivers or 697 m² (7,500 ft²) single channel with LR-42/LR-44 receivers
IR Emitter Power 1.49 W

Power

Power Supply Input 100-240 VAC, 50-60 Hz
Power Supply Output 12 VDC, 4 A, 48 W
Power Supply Connector 2.5 mm ID barrel connector, center positive
Power Output Two (2) RJ-45 connectors. providing Power and RF signal for up to two (2) LA-141 expansion radiators on each output
Power Supply Type In-line switching mode power supply, Listen part number LA-210
Power Supply Line Cord IEC line cord, North America Type B (LT-84-01), Asia and UK Type G (LT-84-02), Euro Type F (LT-84-03), Australia Type I (LT-84-04)

Physical

Color Black with White Silk Screening
Unit Weight with Power Supply 1.8 lbs. (0.8 kg)
Shipping Weight 3.4 lbs. (1.54 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 0.8 lbs. (0.4 kg)