Listen Technologies

Listen Technologies LT-84-02 ListenIR 2 Channel Infrared Assistive Listening Transmitter and Radiator, UK Lead

Name: Listen Technologies LT-84-02 ListenIR 2 Channel Infrared Assistive Listening Transmitter and Radiator, UK Lead
Brand: Listen Technologies

The Listen Technologies LT-84-02 is a two-channel ListenIR infrared assistive listening transmitter and radiator in one unit, supplied with a UK power lead. One channel covers up to 2,787 m² with LR-4200-IR receivers, and up to four LA-141 expansion radiators can be added. Because infrared stays in the room it suits courtrooms, council chambers, boardrooms, theatres, classrooms and multi-room venues where audio must not leak next door. 2Channels2,787 m²Coverage, 1 channel4Carrier frequenciesUp to 4LA-141 expansions Coverage figuresThe 2,787 m² figure is for one channel with LR-4200-IR or LR-5200-IR receivers. Older LR-42/LR-44 receivers give 697 m², and two-channel use or obstructions reduce usable coverage. Infrared needs line of sightIR light stays inside the room, which keeps audio private and lets adjacent rooms run separate systems, but receivers need a view of a radiator. Plan radiator positions for large or obstructed rooms. FeaturesTransmitter and radiator in one unitTwo channels, each set to one of four carrier frequenciesEach channel accepts mic, stereo RCA (summed) and balanced Phoenix line inputsFront level controls with audio presence and peak LEDsUp to four LA-141 expansion radiators, with delay compensation to avoid dropoutsSingle CAT-5e cable carries power and signal to each expansion radiatorPower save mode switches the carrier off after 15 minutes of silenceMounting hardware for wall, ceiling or table supplied SpecificationsChannels2, each on a selectable carrier: 2.3, 2.8, 3.3 or 3.8 MHzCoverage2,787 m² single channel with LR-4200-IR/LR-5200-IR; 697 m² with LR-42/LR-44IR emitter power1.49WMic inputs2x 3.5 mm TS, -30 dBu nominal, 4.4 kohm, 5V biasUnbalanced line inputs2x stereo RCA pairs, -10 dBu nominal, 10 kohmBalanced line inputs2x Phoenix, +4 dBu nominal, 100 kohmFrequency response20 Hz to 20 kHz (±1 dB) line input; 63 Hz to 15 kHz (±3 dB) systemSignal-to-noise ratio>70 dB line input; >60 dB systemModulationWideband FM, ±50 kHz deviation, 50 µs pre-emphasisExpansion outputs2x RJ45 (power and RF), CAT-5e 24 AWG, 30 m max, 2 LA-141 per outputPower saveCarrier off after 15 minutes without audio on both channelsPower supply100 to 240V AC in, 12V DC 4 A out, UK Type G line cordDimensions (H x W x D)38.1 x 272 x 105 mmWeight0.4 kg (0.8 kg with power supply)MountingWall, ceiling or table (hardware supplied); LA-347 back box plate optionalOperating temperature-10 to 40°CShow more

from £787.00

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