Infrared & Simultaneous Interpretation Infrared Systems IR & WiFi Interpretation Systems Listen Technologies ListenIR

ListenIR Advanced Transmitter and Radiator Combo

SKU: LT-84-01

The ListenIR 2-Channel Transmitter/Radiator Combo is an affordable and flexible solution for assistive listening, ideal for small to mid-sized venues.

$815.00

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The ListenIR 2-Channel Transmitter/Radiator Combo, model LT-84, offers venues, businesses, government agencies, and more an affordable and user-friendly assistive listening solution.

This innovative system provides twice the infrared power and up to six times the coverage area of similar products, transmitting a clear and reliable signal across an impressive area of 2,787 square meters (30,000 square feet). This extensive range ensures uninterrupted audio performance for users in mid-sized spaces, from boardrooms to courtrooms and beyond.

Audio

Frequency Response	20 Hz – 20 kHz (+/- 1 dB) Line Input, 63 Hz – 15 kHz (+/- 3 dB) System Specification (wireless end-to-end with LR-4200)
Signal-to-Noise Ratio	> 70 dB (SNR) Line Input, > 60 dB (SNR) System Specification (wireless end-to-end with LR-4200)
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-4200)
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

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

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), India Type D (LT-84-05)

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)

Environmental

Temperature – Operation	14 °F (-10 °C) to +104 °F (40 °C)
Temperature – Storage	-4 °F (-20 °C) to +122 °F (50 °C)
Relative Humidity	0 to 95% relative humidity, non-condensing

Compliance

Standards	FCC part 15, ICS-03, CE, UL, CUL, C-Tick, CCC, PSE, KC, GS, RoHS, WEEE, BIS
Power Supply Compliance Marks	CUL, UL, CE, CCC, C-Tick, KC, PSE, GS, FCC, RoHS, BIS

Customized Requests

Your event, your way. Submit your customized requests for interpreting equipment, and let our expert team craft a solution that perfectly aligns with your event vision.

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At ABBN, we believe in delivering value. Enjoy significant savings as you explore our range of interpreting products, where discounts allow you to optimize your investment.

ListenIR Advanced Transmitter and Radiator Combo

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